diff --git a/apps/server/src/assets/doc_notes/en/User Guide/!!!meta.json b/apps/server/src/assets/doc_notes/en/User Guide/!!!meta.json
index bd6d49aabe..da62e509d8 100644
--- a/apps/server/src/assets/doc_notes/en/User Guide/!!!meta.json	
+++ b/apps/server/src/assets/doc_notes/en/User Guide/!!!meta.json	
@@ -1 +1 @@
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diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Advanced-Search-Expressions.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Advanced-Search-Expressions.html
new file mode 100644
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+<h2>Advanced Search Expressions</h2>
+<p>This guide covers complex search expressions that combine multiple criteria,
+  use advanced operators, and leverage Trilium's relationship system for
+  sophisticated queries.</p>
+<h2>Complex Query Construction</h2>
+<h3>Boolean Logic with Parentheses</h3>
+<p>Use parentheses to group expressions and control evaluation order:</p><pre><code class="language-text-x-trilium-auto">(#book OR #article) AND #author=Tolkien</code></pre>
+<p>Finds notes that are either books or articles, written by Tolkien.</p><pre><code class="language-text-x-trilium-auto">#project AND (#status=active OR #status=pending)</code></pre>
+<p>Finds active or pending projects.</p><pre><code class="language-text-x-trilium-auto">meeting AND (#priority=high OR #urgent) AND note.dateCreated &gt;= TODAY-7</code></pre>
+<p>Finds recent high-priority or urgent meetings.</p>
+<h3>Negation Patterns</h3>
+<p>Use <code>NOT</code> or the <code>not()</code> function to exclude certain
+  criteria:</p><pre><code class="language-text-x-trilium-auto">#book AND not(#genre=fiction)</code></pre>
+<p>Finds non-fiction books.</p><pre><code class="language-text-x-trilium-auto">project AND not(note.isArchived=true)</code></pre>
+<p>Finds non-archived notes containing "project".</p><pre><code class="language-text-x-trilium-auto">#!completed</code></pre>
+<p>Short syntax for notes without the "completed" label.</p>
+<h3>Mixed Search Types</h3>
+<p>Combine full-text, attribute, and property searches:</p><pre><code class="language-text-x-trilium-auto">development #category=work note.type=text note.dateModified &gt;= TODAY-30</code></pre>
+<p>Finds text notes about development, categorized as work, modified in the
+  last 30 days.</p>
+<h2>Advanced Attribute Searches</h2>
+<h3>Fuzzy Attribute Matching</h3>
+<p>When fuzzy attribute search is enabled, you can use partial matches:</p><pre><code class="language-text-x-trilium-auto">#lang</code></pre>
+<p>Matches labels like "language", "languages", "programming-lang", etc.</p><pre><code class="language-text-x-trilium-auto">#category=prog</code></pre>
+<p>Matches categories like "programming", "progress", "program", etc.</p>
+<h3>Multiple Attribute Conditions</h3><pre><code class="language-text-x-trilium-auto">#book #author=Tolkien #publicationYear&gt;=1950 #publicationYear&lt;1960</code></pre>
+<p>Finds Tolkien's books published in the 1950s.</p><pre><code class="language-text-x-trilium-auto">#task #priority=high #status!=completed</code></pre>
+<p>Finds high-priority incomplete tasks.</p>
+<h3>Complex Label Value Patterns</h3>
+<p>Use various operators for sophisticated label matching:</p><pre><code class="language-text-x-trilium-auto">#isbn %= '978-[0-9-]+' </code></pre>
+<p>Finds notes with ISBN labels matching the pattern (regex).</p><pre><code class="language-text-x-trilium-auto">#email *=* @company.com</code></pre>
+<p>Finds notes with email labels containing "@company.com".</p><pre><code class="language-text-x-trilium-auto">#version &gt;= 2.0</code></pre>
+<p>Finds notes with version labels of 2.0 or higher (numeric comparison).</p>
+<h2>Relationship Traversal</h2>
+<h3>Basic Relation Queries</h3><pre><code class="language-text-x-trilium-auto">~author.title *=* Tolkien</code></pre>
+<p>Finds notes with an "author" relation to notes containing "Tolkien" in
+  the title.</p><pre><code class="language-text-x-trilium-auto">~project.labels.status = active</code></pre>
+<p>Finds notes related to projects with active status.</p>
+<h3>Multi-Level Relationships</h3><pre><code class="language-text-x-trilium-auto">~author.relations.publisher.title = "Penguin Books"</code></pre>
+<p>Finds notes authored by someone published by Penguin Books.</p><pre><code class="language-text-x-trilium-auto">~project.children.title *=* documentation</code></pre>
+<p>Finds notes related to projects that have child notes about documentation.</p>
+<h3>Relationship Direction</h3><pre><code class="language-text-x-trilium-auto">note.children.title = "Chapter 1"</code></pre>
+<p>Finds parent notes that have a child titled "Chapter 1".</p><pre><code class="language-text-x-trilium-auto">note.parents.labels.category = book</code></pre>
+<p>Finds notes whose parents are categorized as books.</p><pre><code class="language-text-x-trilium-auto">note.ancestors.title = "Literature"</code></pre>
+<p>Finds notes with "Literature" anywhere in their ancestor chain.</p>
+<h2>Property-Based Searches</h2>
+<h3>Note Metadata Queries</h3><pre><code class="language-text-x-trilium-auto">note.type=code note.mime=text/javascript note.dateCreated &gt;= MONTH</code></pre>
+<p>Finds JavaScript code notes created this month.</p><pre><code class="language-text-x-trilium-auto">note.isProtected=true note.contentSize &gt; 1000</code></pre>
+<p>Finds large protected notes.</p><pre><code class="language-text-x-trilium-auto">note.childrenCount &gt;= 10 note.type=text</code></pre>
+<p>Finds text notes with many children.</p>
+<h3>Advanced Property Combinations</h3><pre><code class="language-text-x-trilium-auto">note.parentCount &gt; 1 #template</code></pre>
+<p>Finds template notes that are cloned in multiple places.</p><pre><code class="language-text-x-trilium-auto">note.attributeCount &gt; 5 note.type=text note.contentSize &lt; 500</code></pre>
+<p>Finds small text notes with many attributes (heavily tagged short notes).</p><pre><code class="language-text-x-trilium-auto">note.revisionCount &gt; 10 note.dateModified &gt;= TODAY-7</code></pre>
+<p>Finds frequently edited notes modified recently.</p>
+<h2>Date and Time Expressions</h2>
+<h3>Relative Date Calculations</h3><pre><code class="language-text-x-trilium-auto">#dueDate &lt;= TODAY+7 #dueDate &gt;= TODAY</code></pre>
+<p>Finds tasks due in the next week.</p><pre><code class="language-text-x-trilium-auto">note.dateCreated &gt;= MONTH-2 note.dateCreated &lt; MONTH</code></pre>
+<p>Finds notes created in the past two months.</p><pre><code class="language-text-x-trilium-auto">#eventDate = YEAR note.dateCreated &gt;= YEAR-1</code></pre>
+<p>Finds events scheduled for this year that were planned last year.</p>
+<h3>Complex Date Logic</h3><pre><code class="language-text-x-trilium-auto">(#startDate &lt;= TODAY AND #endDate &gt;= TODAY) OR #status=ongoing</code></pre>
+<p>Finds current events or ongoing items.</p><pre><code class="language-text-x-trilium-auto">#reminderDate &lt;= NOW+3600 #reminderDate &gt; NOW</code></pre>
+<p>Finds reminders due in the next hour (using seconds offset).</p>
+<h2>Fuzzy Search Techniques</h2>
+<h3>Fuzzy Exact Matching</h3><pre><code class="language-text-x-trilium-auto">#title ~= managment</code></pre>
+<p>Finds notes with titles like "management" even with typos.</p><pre><code class="language-text-x-trilium-auto">~category.title ~= progaming</code></pre>
+<p>Finds notes related to categories like "programming" with misspellings.</p>
+<h3>Fuzzy Contains Matching</h3><pre><code class="language-text-x-trilium-auto">note.content ~* algoritm</code></pre>
+<p>Finds notes containing words like "algorithm" with spelling variations.</p><pre><code class="language-text-x-trilium-auto">#description ~* recieve</code></pre>
+<p>Finds notes with descriptions containing "receive" despite the common
+  misspelling.</p>
+<h3>Progressive Fuzzy Strategy</h3>
+<p>By default, Trilium uses exact matching first, then fuzzy as fallback:</p><pre><code class="language-text-x-trilium-auto">development project</code></pre>
+<p>First finds exact matches for "development" and "project", then adds fuzzy
+  matches if needed.</p>
+<p>To force fuzzy behavior:</p><pre><code class="language-text-x-trilium-auto">#title ~= development #category ~= projet</code></pre>
+<h2>Ordering and Limiting</h2>
+<h3>Multiple Sort Criteria</h3><pre><code class="language-text-x-trilium-auto">#book orderBy #publicationYear desc, note.title asc limit 20</code></pre>
+<p>Orders books by publication year (newest first), then by title alphabetically,
+  limited to 20 results.</p><pre><code class="language-text-x-trilium-auto">#task orderBy #priority desc, #dueDate asc</code></pre>
+<p>Orders tasks by priority (high first), then by due date (earliest first).</p>
+<h3>Dynamic Ordering</h3><pre><code class="language-text-x-trilium-auto">#meeting note.dateCreated &gt;= TODAY-30 orderBy note.dateModified desc</code></pre>
+<p>Finds recent meetings ordered by last modification.</p><pre><code class="language-text-x-trilium-auto">#project #status=active orderBy note.childrenCount desc limit 10</code></pre>
+<p>Finds the 10 most complex active projects (by number of sub-notes).</p>
+<h2>Performance Optimization Patterns</h2>
+<h3>Efficient Query Structure</h3>
+<p>Start with the most selective criteria:</p><pre><code class="language-text-x-trilium-auto">#book #author=Tolkien note.dateCreated &gt;= 1950-01-01</code></pre>
+<p>Better than:</p><pre><code class="language-text-x-trilium-auto">note.dateCreated &gt;= 1950-01-01 #book #author=Tolkien</code></pre>
+<h3>Fast Search for Large Datasets</h3><pre><code class="language-text-x-trilium-auto">#category=project #status=active</code></pre>
+<p>With fast search enabled, this searches only attributes, not content.</p>
+<h3>Limiting Expensive Operations</h3><pre><code class="language-text-x-trilium-auto">note.content *=* "complex search term" limit 50</code></pre>
+<p>Limits content search to prevent performance issues.</p>
+<h2>Error Handling and Debugging</h2>
+<h3>Syntax Validation</h3>
+<p>Invalid syntax produces helpful error messages:</p><pre><code class="language-text-x-trilium-auto">#book AND OR #author=Tolkien</code></pre>
+<p>Error: "Mixed usage of AND/OR - always use parentheses to group AND/OR
+  expressions."</p>
+<h3>Debug Mode</h3>
+<p>Enable debug mode to see how queries are parsed:</p><pre><code class="language-text-x-trilium-auto">#book #author=Tolkien</code></pre>
+<p>With debug enabled, shows the internal expression tree structure.</p>
+<h3>Common Pitfalls</h3>
+<ul>
+  <li>Unescaped special characters: Use quotes or backslashes</li>
+  <li>Missing parentheses in complex boolean expressions</li>
+  <li>Incorrect property names: Use <code>note.title</code> not <code>title</code>
+  </li>
+  <li>Case sensitivity assumptions: All searches are case-insensitive</li>
+</ul>
+<h2>Expression Shortcuts</h2>
+<h3>Label Shortcuts</h3>
+<p>Full syntax:</p><pre><code class="language-text-x-trilium-auto">note.labels.category = book</code></pre>
+<p>Shortcut:</p><pre><code class="language-text-x-trilium-auto">#category = book</code></pre>
+<h3>Relation Shortcuts</h3>
+<p>Full syntax:</p><pre><code class="language-text-x-trilium-auto">note.relations.author.title *=* Tolkien</code></pre>
+<p>Shortcut:</p><pre><code class="language-text-x-trilium-auto">~author.title *=* Tolkien</code></pre>
+<h3>Property Shortcuts</h3>
+<p>Some properties have convenient shortcuts:</p><pre><code class="language-text-x-trilium-auto">note.text *=* content</code></pre>
+<p>Searches both title and content for "content".</p>
+<h2>Real-World Complex Examples</h2>
+<h3>Project Management</h3><pre><code class="language-text-x-trilium-auto">(#project OR #task) AND #status!=completed AND 
+(#priority=high OR #dueDate &lt;= TODAY+7) AND 
+not(note.isArchived=true) 
+orderBy #priority desc, #dueDate asc</code></pre>
+<h3>Research Organization</h3><pre><code class="language-text-x-trilium-auto">(#paper OR #article OR #book) AND 
+~author.title *=* smith AND 
+#topic *=* "machine learning" AND 
+note.dateCreated &gt;= YEAR-2 
+orderBy #citationCount desc limit 25</code></pre>
+<h3>Content Management</h3><pre><code class="language-text-x-trilium-auto">note.type=text AND note.contentSize &gt; 5000 AND 
+#category=documentation AND note.childrenCount &gt;= 3 AND 
+note.dateModified &gt;= MONTH-1 
+orderBy note.dateModified desc</code></pre>
+<h3>Knowledge Base Maintenance</h3><pre><code class="language-text-x-trilium-auto">note.attributeCount = 0 AND note.childrenCount = 0 AND 
+note.parentCount = 1 AND note.contentSize &lt; 100 AND 
+note.dateModified &lt; TODAY-90</code></pre>
+<p>Finds potential cleanup candidates: small, untagged, isolated notes not
+  modified in 90 days.</p>
+<h2>Next Steps</h2>
+<ul>
+  <li><a href="#root/_help_yAFfA1SAYlr7">Search Examples and Use Cases</a> -
+    Practical applications</li>
+  <li><a href="#root/_help_UUBStSxWzjgA">Saved Searches</a> - Creating reusable
+    search configurations</li>
+  <li><a href="#root/_help_ttFz520bcNLf">Technical Search Details</a> - Implementation
+    details and performance tuning</li>
+</ul>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/README.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/README.html
new file mode 100644
index 0000000000..ebdb0ee2e8
--- /dev/null
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@@ -0,0 +1,158 @@
+<h2>Trilium Search Documentation</h2>
+<p>Welcome to the comprehensive guide for Trilium's powerful search capabilities.
+  This documentation covers everything from basic text searches to advanced
+  query expressions and performance optimization.</p>
+<h2>Quick Start</h2>
+<p>New to Trilium search? Start here:</p>
+<ul>
+  <li><strong><a href="#root/_help_WcwMZ2tDZmXK">Search Fundamentals</a></strong> -
+    Basic concepts, syntax, and operators</li>
+</ul>
+<h2>Documentation Sections</h2>
+<h3>Core Search Features</h3>
+<ul>
+  <li><strong><a href="#root/_help_WcwMZ2tDZmXK">Search Fundamentals</a></strong> -
+    Basic search syntax, operators, and concepts</li>
+  <li><strong><a href="#root/_help_ey9TMFyD8SHR">Advanced Search Expressions</a></strong> -
+    Complex queries, boolean logic, and relationship traversal</li>
+</ul>
+<h3>Practical Applications</h3>
+<ul>
+  <li><strong><a href="#root/_help_yAFfA1SAYlr7">Search Examples and Use Cases</a></strong> -
+    Real-world examples for common workflows</li>
+  <li><strong><a href="#root/_help_UUBStSxWzjgA">Saved Searches</a></strong> -
+    Creating dynamic collections and dashboards</li>
+</ul>
+<h3>Technical Reference</h3>
+<ul>
+  <li><strong><a href="#root/_help_ttFz520bcNLf">Technical Search Details</a></strong> -
+    Performance, implementation, and optimization</li>
+</ul>
+<h2>Key Search Capabilities</h2>
+<h3>Full-Text Search</h3>
+<ul>
+  <li>Search note titles and content</li>
+  <li>Exact phrase matching with quotes</li>
+  <li>Case-insensitive with diacritic normalization</li>
+  <li>Support for multiple note types (text, code, mermaid, canvas)</li>
+</ul>
+<h3>Attribute-Based Search</h3>
+<ul>
+  <li>Label searches: <code>#tag</code>, <code>#category=book</code>
+  </li>
+  <li>Relation searches: <code>~author</code>, <code>~author.title=Tolkien</code>
+  </li>
+  <li>Complex attribute combinations</li>
+  <li>Fuzzy attribute matching</li>
+</ul>
+<h3>Property Search</h3>
+<ul>
+  <li>Note metadata: <code>note.type=text</code>, <code>note.dateCreated &gt;= TODAY-7</code>
+  </li>
+  <li>Hierarchical queries: <code>note.parents.title=Books</code>
+  </li>
+  <li>Relationship traversal: <code>note.children.labels.status=active</code>
+  </li>
+</ul>
+<h3>Advanced Features</h3>
+<ul>
+  <li><strong>Progressive Search</strong>: Exact matching first, fuzzy fallback
+    when needed</li>
+  <li><strong>Fuzzy Search</strong>: Typo tolerance and spelling variations</li>
+  <li><strong>Boolean Logic</strong>: Complex AND/OR/NOT combinations</li>
+  <li><strong>Date Arithmetic</strong>: Dynamic date calculations (TODAY-30,
+    YEAR+1)</li>
+  <li><strong>Regular Expressions</strong>: Pattern matching with <code>%=</code> operator</li>
+  <li><strong>Ordering and Limiting</strong>: Custom sort orders and result
+    limits</li>
+</ul>
+<h2>Search Operators Quick Reference</h2>
+<h3>Text Operators</h3>
+<ul>
+  <li><code>=</code> - Exact match</li>
+  <li><code>!=</code> - Not equal</li>
+  <li><code>*=*</code> - Contains</li>
+  <li><code>=*</code> - Starts with</li>
+  <li><code>*=</code> - Ends with</li>
+  <li><code>%=</code> - Regular expression</li>
+  <li><code>~=</code> - Fuzzy exact match</li>
+  <li><code>~*</code> - Fuzzy contains match</li>
+</ul>
+<h3>Numeric Operators</h3>
+<ul>
+  <li><code>=</code>, <code>!=</code>, <code>&gt;</code>, <code>&gt;=</code>, <code>&lt;</code>, <code>&lt;=</code>
+  </li>
+</ul>
+<h3>Boolean Operators</h3>
+<ul>
+  <li><code>AND</code>, <code>OR</code>, <code>NOT</code>
+  </li>
+</ul>
+<h3>Special Syntax</h3>
+<ul>
+  <li><code>#labelName</code> - Label exists</li>
+  <li><code>#labelName=value</code> - Label equals value</li>
+  <li><code>~relationName</code> - Relation exists</li>
+  <li><code>~relationName.property</code> - Relation target property</li>
+  <li><code>note.property</code> - Note property access</li>
+  <li><code>"exact phrase"</code> - Quoted phrase search</li>
+</ul>
+<h2>Common Search Patterns</h2>
+<h3>Simple Searches</h3><pre><code class="language-text-x-trilium-auto">hello world          # Find notes containing both words
+"project management" # Find exact phrase
+#task               # Find notes with "task" label
+~author             # Find notes with "author" relation</code></pre>
+<h3>Attribute Searches</h3><pre><code class="language-text-x-trilium-auto">#book #author=Tolkien           # Books by Tolkien
+#task #priority=high #status!=completed  # High-priority incomplete tasks
+~project.title *=* alpha        # Notes related to projects with "alpha" in title</code></pre>
+<h3>Date-Based Searches</h3><pre><code class="language-text-x-trilium-auto">note.dateCreated &gt;= TODAY-7     # Notes created in last week
+#dueDate &lt;= TODAY+30            # Items due in next 30 days
+#eventDate = YEAR               # Events scheduled for this year</code></pre>
+<h3>Complex Queries</h3><pre><code class="language-text-x-trilium-auto">(#book OR #article) AND #topic=programming AND note.dateModified &gt;= MONTH
+#project AND (#status=active OR #status=pending) AND not(note.isArchived=true)</code></pre>
+<h2>Getting Started Checklist</h2>
+<ol>
+  <li><strong>Learn Basic Syntax</strong> - Start with simple text and tag searches</li>
+  <li><strong>Understand Operators</strong> - Master the core operators (<code>=</code>, <code>*=*</code>,
+    etc.)</li>
+  <li><strong>Practice Attributes</strong> - Use <code>#</code> for labels and <code>~</code> for
+    relations</li>
+  <li><strong>Try Boolean Logic</strong> - Combine searches with AND/OR/NOT</li>
+  <li><strong>Explore Properties</strong> - Use <code>note.</code> prefix for metadata
+    searches</li>
+  <li><strong>Create Saved Searches</strong> - Turn useful queries into dynamic
+    collections</li>
+  <li><strong>Optimize Performance</strong> - Learn about fast search and limits</li>
+</ol>
+<h2>Performance Tips</h2>
+<ul>
+  <li><strong>Use Fast Search</strong> for attribute-only queries</li>
+  <li><strong>Set Reasonable Limits</strong> to prevent large result sets</li>
+  <li><strong>Start Specific</strong> with the most selective criteria first</li>
+  <li><strong>Leverage Attributes</strong> instead of content search when possible</li>
+  <li><strong>Cache Common Queries</strong> as saved searches</li>
+</ul>
+<h2>Need Help?</h2>
+<ul>
+  <li><strong>Examples</strong>: Check <a href="#root/_help_yAFfA1SAYlr7">Search Examples and Use Cases</a> for
+    practical patterns</li>
+  <li><strong>Complex Queries</strong>: See <a href="#root/_help_ey9TMFyD8SHR">Advanced Search Expressions</a> for
+    sophisticated techniques</li>
+  <li><strong>Performance Issues</strong>: Review <a href="#root/_help_ttFz520bcNLf">Technical Search Details</a> for
+    optimization</li>
+  <li><strong>Dynamic Collections</strong>: Learn about <a href="#root/_help_UUBStSxWzjgA">Saved Searches</a> for
+    automated organization</li>
+</ul>
+<h2>Search Workflow Integration</h2>
+<p>Trilium's search integrates seamlessly with your note-taking workflow:</p>
+<ul>
+  <li><strong>Quick Search</strong> (Ctrl+S) for instant access</li>
+  <li><strong>Saved Searches</strong> for dynamic organization</li>
+  <li><strong>Search from Subtree</strong> for focused queries</li>
+  <li><strong>Auto-complete</strong> suggestions in search dialogs</li>
+  <li><strong>URL-triggered searches</strong> for bookmarkable queries</li>
+</ul>
+<p>Start with the fundamentals and gradually explore advanced features as
+  your needs grow. Trilium's search system is designed to scale from simple
+  text queries to sophisticated knowledge management systems.</p>
+<p>Happy searching! 🔍</p>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Saved-Searches.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Saved-Searches.html
new file mode 100644
index 0000000000..f25effb5b1
--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Saved-Searches.html	
@@ -0,0 +1,293 @@
+<h2>Saved Searches</h2>
+<p>Saved searches in Trilium allow you to create dynamic collections of notes
+  that automatically update based on search criteria. They appear as special
+  notes in your tree and provide a powerful way to organize and access related
+  content.</p>
+<h2>Understanding Saved Searches</h2>
+<p>A saved search is a special note type that:</p>
+<ul>
+  <li>Stores search criteria and configuration</li>
+  <li>Dynamically displays matching notes as children</li>
+  <li>Updates automatically when notes change</li>
+  <li>Can be bookmarked and accessed like any other note</li>
+  <li>Supports all search features including ordering and limits</li>
+</ul>
+<h2>Creating Saved Searches</h2>
+<h3>From Search Dialog</h3>
+<ol>
+  <li>Open the search dialog (Ctrl+S or search icon)</li>
+  <li>Configure your search criteria and options</li>
+  <li>Click "Save to note" button</li>
+  <li>Choose a name and location for the saved search</li>
+</ol>
+<h3>Manual Creation</h3>
+<ol>
+  <li>Create a new note and set its type to "Saved Search"</li>
+  <li>Configure the search using labels:
+    <ul>
+      <li><code>#searchString</code> - The search query</li>
+      <li><code>#fastSearch</code> - Enable fast search mode</li>
+      <li><code>#includeArchivedNotes</code> - Include archived notes</li>
+      <li><code>#orderBy</code> - Sort field</li>
+      <li><code>#orderDirection</code> - "asc" or "desc"</li>
+      <li><code>#limit</code> - Maximum number of results</li>
+    </ul>
+  </li>
+</ol>
+<h3>Using Search Scripts</h3>
+<p>For complex logic, create a JavaScript note and link it:</p>
+<ul>
+  <li><code>~searchScript</code> - Relation pointing to a backend script note</li>
+</ul>
+<h2>Basic Saved Search Examples</h2>
+<h3>Simple Text Search</h3><pre><code class="language-text-x-trilium-auto">#searchString=project management</code></pre>
+<p>Finds all notes containing "project management".</p>
+<h3>Tag-Based Collection</h3><pre><code class="language-text-x-trilium-auto">#searchString=#book #author=Tolkien
+#orderBy=publicationYear
+#orderDirection=desc</code></pre>
+<p>Creates a collection of Tolkien's books ordered by publication year.</p>
+<h3>Task Dashboard</h3><pre><code class="language-text-x-trilium-auto">#searchString=#task #status!=completed #assignee=me
+#orderBy=priority
+#orderDirection=desc
+#limit=20</code></pre>
+<p>Shows your top 20 incomplete tasks by priority.</p>
+<h3>Recent Activity</h3><pre><code class="language-text-x-trilium-auto">#searchString=note.dateModified &gt;= TODAY-7
+#orderBy=dateModified
+#orderDirection=desc
+#limit=50</code></pre>
+<p>Shows the 50 most recently modified notes from the last week.</p>
+<h2>Advanced Saved Search Patterns</h2>
+<h3>Dynamic Date-Based Collections</h3>
+<h4>This Week's Content</h4><pre><code class="language-text-x-trilium-auto">#searchString=note.dateCreated &gt;= TODAY-7 note.dateCreated &lt; TODAY
+#orderBy=dateCreated
+#orderDirection=desc</code></pre>
+<h4>Monthly Review Collection</h4><pre><code class="language-text-x-trilium-auto">#searchString=#reviewed=false note.dateCreated &gt;= MONTH note.dateCreated &lt; MONTH+1
+#orderBy=dateCreated</code></pre>
+<h4>Upcoming Deadlines</h4><pre><code class="language-text-x-trilium-auto">#searchString=#dueDate &gt;= TODAY #dueDate &lt;= TODAY+14 #status!=completed
+#orderBy=dueDate
+#orderDirection=asc</code></pre>
+<h3>Project-Specific Collections</h3>
+<h4>Project Dashboard</h4><pre><code class="language-text-x-trilium-auto">#searchString=#project=alpha (#task OR #milestone OR #document)
+#orderBy=priority
+#orderDirection=desc</code></pre>
+<h4>Project Health Monitor</h4><pre><code class="language-text-x-trilium-auto">#searchString=#project=alpha #status=blocked OR (#dueDate &lt; TODAY #status!=completed)
+#orderBy=dueDate
+#orderDirection=asc</code></pre>
+<h3>Content Type Collections</h3>
+<h4>Documentation Hub</h4><pre><code class="language-text-x-trilium-auto">#searchString=(#documentation OR #guide OR #manual) #product=api
+#orderBy=dateModified
+#orderDirection=desc</code></pre>
+<h4>Learning Path</h4><pre><code class="language-text-x-trilium-auto">#searchString=#course #level=beginner #topic=programming
+#orderBy=difficulty
+#orderDirection=asc</code></pre>
+<h2>Search Script Examples</h2>
+<p>For complex logic that can't be expressed in search strings, use JavaScript:</p>
+<h3>Custom Business Logic</h3><pre><code class="language-application-javascript-env-backend">// Find notes that need attention based on complex criteria
+const api = require('api');
+
+const cutoffDate = new Date();
+cutoffDate.setDate(cutoffDate.getDate() - 30);
+
+const results = [];
+
+// Find high-priority tasks overdue by more than a week
+const overdueTasks = api.searchForNotes(`
+    #task #priority=high #dueDate &lt; TODAY-7 #status!=completed
+`);
+
+// Find projects with no recent activity
+const staleProjets = api.searchForNotes(`
+    #project #status=active note.dateModified &lt; TODAY-30
+`);
+
+// Find notes with many attributes but no content
+const overlabeledNotes = api.searchForNotes(`
+    note.attributeCount &gt; 5 note.contentSize &lt; 100
+`);
+
+return [...overdueTasks, ...staleProjects, ...overlabeledNotes]
+    .map(note =&gt; note.noteId);</code></pre>
+<h3>Dynamic Tag-Based Grouping</h3><pre><code class="language-application-javascript-env-backend">// Group notes by quarter based on creation date
+const api = require('api');
+
+const currentYear = new Date().getFullYear();
+const results = [];
+
+for (let quarter = 1; quarter &lt;= 4; quarter++) {
+    const startMonth = (quarter - 1) * 3 + 1;
+    const endMonth = quarter * 3;
+    
+    const quarterNotes = api.searchForNotes(`
+        note.dateCreated &gt;= "${currentYear}-${String(startMonth).padStart(2, '0')}-01"
+        note.dateCreated &lt; "${currentYear}-${String(endMonth + 1).padStart(2, '0')}-01"
+        #project
+    `);
+    
+    results.push(...quarterNotes.map(note =&gt; note.noteId));
+}
+
+return results;</code></pre>
+<h3>Conditional Search Logic</h3><pre><code class="language-application-javascript-env-backend">// Smart dashboard that changes based on day of week
+const api = require('api');
+
+const today = new Date();
+const dayOfWeek = today.getDay(); // 0 = Sunday, 1 = Monday, etc.
+
+let searchQuery;
+
+if (dayOfWeek === 1) { // Monday - weekly planning
+    searchQuery = '#task #status=planned #week=' + getWeekNumber(today);
+} else if (dayOfWeek === 5) { // Friday - weekly review
+    searchQuery = '#task #completed=true #week=' + getWeekNumber(today);
+} else { // Regular days - focus on today's work
+    searchQuery = '#task #dueDate=TODAY #status!=completed';
+}
+
+const notes = api.searchForNotes(searchQuery);
+return notes.map(note =&gt; note.noteId);
+
+function getWeekNumber(date) {
+    const firstDay = new Date(date.getFullYear(), 0, 1);
+    const pastDays = Math.floor((date - firstDay) / 86400000);
+    return Math.ceil((pastDays + firstDay.getDay() + 1) / 7);
+}</code></pre>
+<h2>Performance Optimization</h2>
+<h3>Fast Search for Large Collections</h3>
+<p>For collections that don't need content search:</p><pre><code class="language-text-x-trilium-auto">#searchString=#category=reference #type=article
+#fastSearch=true
+#limit=100</code></pre>
+<h3>Efficient Ordering</h3>
+<p>Use indexed properties for better performance:</p><pre><code class="language-text-x-trilium-auto">#orderBy=dateCreated
+#orderBy=title
+#orderBy=noteId</code></pre>
+<p>Avoid complex calculated orderings in large collections.</p>
+<h3>Result Limiting</h3>
+<p>Always set reasonable limits for large collections:</p><pre><code class="language-text-x-trilium-auto">#limit=50</code></pre>
+<p>For very large result sets, consider breaking into multiple saved searches.</p>
+<h2>Saved Search Organization</h2>
+<h3>Hierarchical Organization</h3>
+<p>Create a folder structure for saved searches:</p><pre><code class="language-text-x-trilium-auto">📁 Searches
+├── 📁 Projects
+│   ├── 🔍 Active Projects
+│   ├── 🔍 Overdue Tasks  
+│   └── 🔍 Project Archive
+├── 📁 Content
+│   ├── 🔍 Recent Drafts
+│   ├── 🔍 Published Articles
+│   └── 🔍 Review Queue
+└── 📁 Maintenance
+    ├── 🔍 Untagged Notes
+    ├── 🔍 Cleanup Candidates
+    └── 🔍 Orphaned Notes</code></pre>
+<h3>Search Naming Conventions</h3>
+<p>Use clear, descriptive names:</p>
+<ul>
+  <li>"Active High-Priority Tasks"</li>
+  <li>"This Month's Meeting Notes"</li>
+  <li>"Unprocessed Inbox Items"</li>
+  <li>"Literature Review Papers"</li>
+</ul>
+<h3>Search Labels</h3>
+<p>Tag saved searches for organization:</p><pre><code class="language-text-x-trilium-auto">#searchType=dashboard
+#searchType=maintenance  
+#searchType=archive
+#frequency=daily
+#frequency=weekly</code></pre>
+<h2>Dashboard Creation</h2>
+<h3>Personal Dashboard</h3>
+<p>Combine multiple saved searches in a parent note:</p><pre><code class="language-text-x-trilium-auto">📋 My Dashboard
+├── 🔍 Today's Tasks
+├── 🔍 Urgent Items
+├── 🔍 Recent Notes
+├── 🔍 Upcoming Deadlines
+└── 🔍 Weekly Review Items</code></pre>
+<h3>Project Dashboard</h3><pre><code class="language-text-x-trilium-auto">📋 Project Alpha Dashboard  
+├── 🔍 Active Tasks
+├── 🔍 Blocked Items
+├── 🔍 Recent Updates
+├── 🔍 Milestones
+└── 🔍 Team Notes</code></pre>
+<h3>Content Dashboard</h3><pre><code class="language-text-x-trilium-auto">📋 Content Management
+├── 🔍 Draft Articles
+├── 🔍 Review Queue
+├── 🔍 Published This Month
+├── 🔍 High-Engagement Posts
+└── 🔍 Content Ideas</code></pre>
+<h2>Maintenance and Updates</h2>
+<h3>Regular Review</h3>
+<p>Periodically review saved searches for:</p>
+<ul>
+  <li>Outdated search criteria</li>
+  <li>Performance issues</li>
+  <li>Unused collections</li>
+  <li>Scope creep</li>
+</ul>
+<h3>Search Evolution</h3>
+<p>As your note-taking evolves, update searches:</p>
+<ul>
+  <li>Add new tags to existing searches</li>
+  <li>Refine criteria based on usage patterns</li>
+  <li>Split large collections into smaller ones</li>
+  <li>Merge rarely-used collections</li>
+</ul>
+<h3>Performance Monitoring</h3>
+<p>Watch for performance issues:</p>
+<ul>
+  <li>Slow-loading saved searches</li>
+  <li>Memory usage with large result sets</li>
+  <li>Search timeout errors</li>
+</ul>
+<h2>Troubleshooting</h2>
+<h3>Common Issues</h3>
+<h4>Empty Results</h4>
+<ul>
+  <li>Check search syntax</li>
+  <li>Verify tag spellings</li>
+  <li>Ensure notes have required attributes</li>
+  <li>Test search components individually</li>
+</ul>
+<h4>Performance Problems</h4>
+<ul>
+  <li>Add <code>#fastSearch=true</code> for attribute-only searches</li>
+  <li>Reduce result limits</li>
+  <li>Simplify complex criteria</li>
+  <li>Use indexed properties for ordering</li>
+</ul>
+<h4>Unexpected Results</h4>
+<ul>
+  <li>Enable debug mode to see query parsing</li>
+  <li>Test search in search dialog first</li>
+  <li>Check for case sensitivity issues</li>
+  <li>Verify date formats and ranges</li>
+</ul>
+<h3>Best Practices</h3>
+<h4>Search Design</h4>
+<ul>
+  <li>Start simple and add complexity gradually</li>
+  <li>Test searches thoroughly before saving</li>
+  <li>Document complex search logic</li>
+  <li>Use meaningful names and descriptions</li>
+</ul>
+<h4>Performance</h4>
+<ul>
+  <li>Set appropriate limits</li>
+  <li>Use fast search when possible</li>
+  <li>Avoid overly complex expressions</li>
+  <li>Monitor search execution time</li>
+</ul>
+<h4>Organization</h4>
+<ul>
+  <li>Group related searches</li>
+  <li>Use consistent naming conventions</li>
+  <li>Archive unused searches</li>
+  <li>Regular cleanup and maintenance</li>
+</ul>
+<h2>Next Steps</h2>
+<ul>
+  <li><a href="#root/_help_ttFz520bcNLf">Technical Search Details</a> - Understanding
+    search performance and implementation</li>
+  <li><a href="#root/_help_yAFfA1SAYlr7">Search Examples and Use Cases</a> -
+    More practical examples</li>
+  <li><a href="#root/_help_ey9TMFyD8SHR">Advanced Search Expressions</a> - Complex
+    query construction</li>
+</ul>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Search-Examples-and-Use-Cases.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Search-Examples-and-Use-Cases.html
new file mode 100644
index 0000000000..dc6049eb94
--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Search-Examples-and-Use-Cases.html	
@@ -0,0 +1,152 @@
+<h2>Search Examples and Use Cases</h2>
+<p>This guide provides practical examples of how to use Trilium's search
+  capabilities for common organizational patterns and workflows.</p>
+<h2>Personal Knowledge Management</h2>
+<h3>Research and Learning</h3>
+<p>Track your learning progress and find related materials:</p><pre><code class="language-text-x-trilium-auto">#topic=javascript #status=learning</code></pre>
+<p>Find all JavaScript materials you're currently learning.</p><pre><code class="language-text-x-trilium-auto">#course #completed=false note.dateCreated &gt;= MONTH-1</code></pre>
+<p>Find courses started in the last month that aren't completed.</p><pre><code class="language-text-x-trilium-auto">#book #topic *=* programming #rating &gt;= 4</code></pre>
+<p>Find highly-rated programming books.</p><pre><code class="language-text-x-trilium-auto">#paper ~author.title *=* "Andrew Ng" #field=machine-learning</code></pre>
+<p>Find machine learning papers by Andrew Ng.</p>
+<h3>Meeting and Event Management</h3>
+<p>Organize meetings, notes, and follow-ups:</p><pre><code class="language-text-x-trilium-auto">#meeting note.dateCreated &gt;= TODAY-7 #attendee *=* smith</code></pre>
+<p>Find this week's meetings with Smith.</p><pre><code class="language-text-x-trilium-auto">#meeting #actionItems #status!=completed</code></pre>
+<p>Find meetings with outstanding action items.</p><pre><code class="language-text-x-trilium-auto">#event #date &gt;= TODAY #date &lt;= TODAY+30</code></pre>
+<p>Find upcoming events in the next 30 days.</p><pre><code class="language-text-x-trilium-auto">#meeting #project=alpha note.dateCreated &gt;= MONTH</code></pre>
+<p>Find this month's meetings about project alpha.</p>
+<h3>Note Organization and Cleanup</h3>
+<p>Maintain and organize your note structure:</p><pre><code class="language-text-x-trilium-auto">note.childrenCount = 0 note.parentCount = 1 note.contentSize &lt; 50 note.dateModified &lt; TODAY-180</code></pre>
+<p>Find small, isolated notes not modified in 6 months (cleanup candidates).</p><pre><code class="language-text-x-trilium-auto">note.attributeCount = 0 note.type=text note.contentSize &gt; 1000</code></pre>
+<p>Find large text notes without any labels (might need categorization).</p><pre><code class="language-text-x-trilium-auto">#draft note.dateCreated &lt; TODAY-30</code></pre>
+<p>Find old draft notes that might need attention.</p><pre><code class="language-text-x-trilium-auto">note.parentCount &gt; 3 note.type=text</code></pre>
+<p>Find notes that are heavily cloned (might indicate important content).</p>
+<h2>Project Management</h2>
+<h3>Task Tracking</h3>
+<p>Manage tasks and project progress:</p><pre><code class="language-text-x-trilium-auto">#task #priority=high #status!=completed #assignee=me</code></pre>
+<p>Find your high-priority incomplete tasks.</p><pre><code class="language-text-x-trilium-auto">#task #dueDate &lt;= TODAY+3 #dueDate &gt;= TODAY #status!=completed</code></pre>
+<p>Find tasks due in the next 3 days.</p><pre><code class="language-text-x-trilium-auto">#project=website #task #status=blocked</code></pre>
+<p>Find blocked tasks in the website project.</p><pre><code class="language-text-x-trilium-auto">#task #estimatedHours &gt; 0 #actualHours &gt; 0 orderBy note.dateModified desc</code></pre>
+<p>Find tasks with time tracking data, sorted by recent updates.</p>
+<h3>Project Oversight</h3>
+<p>Monitor project health and progress:</p><pre><code class="language-text-x-trilium-auto">#project #status=active note.children.labels.status = blocked</code></pre>
+<p>Find active projects with blocked tasks.</p><pre><code class="language-text-x-trilium-auto">#project #startDate &lt;= TODAY-90 #status!=completed</code></pre>
+<p>Find projects that started over 90 days ago but aren't completed.</p><pre><code class="language-text-x-trilium-auto">#milestone #targetDate &lt;= TODAY #status!=achieved</code></pre>
+<p>Find overdue milestones.</p><pre><code class="language-text-x-trilium-auto">#project orderBy note.childrenCount desc limit 10</code></pre>
+<p>Find the 10 largest projects by number of sub-notes.</p>
+<h3>Resource Planning</h3>
+<p>Track resources and dependencies:</p><pre><code class="language-text-x-trilium-auto">#resource #type=person #availability &lt; 50</code></pre>
+<p>Find people with low availability.</p><pre><code class="language-text-x-trilium-auto">#dependency #status=pending #project=mobile-app</code></pre>
+<p>Find pending dependencies for the mobile app project.</p><pre><code class="language-text-x-trilium-auto">#budget #project #spent &gt; #allocated</code></pre>
+<p>Find projects over budget.</p>
+<h2>Content Creation and Writing</h2>
+<h3>Writing Projects</h3>
+<p>Manage articles, books, and documentation:</p><pre><code class="language-text-x-trilium-auto">#article #status=draft #wordCount &gt;= 1000</code></pre>
+<p>Find substantial draft articles.</p><pre><code class="language-text-x-trilium-auto">#chapter #book=novel #status=outline</code></pre>
+<p>Find novel chapters still in outline stage.</p><pre><code class="language-text-x-trilium-auto">#blog-post #published=false #topic=technology</code></pre>
+<p>Find unpublished technology blog posts.</p><pre><code class="language-text-x-trilium-auto">#documentation #lastReviewed &lt; TODAY-90 #product=api</code></pre>
+<p>Find API documentation not reviewed in 90 days.</p>
+<h3>Editorial Workflow</h3>
+<p>Track editing and publication status:</p><pre><code class="language-text-x-trilium-auto">#article #editor=jane #status=review</code></pre>
+<p>Find articles assigned to Jane for review.</p><pre><code class="language-text-x-trilium-auto">#manuscript #submissionDate &gt;= TODAY-30 #status=pending</code></pre>
+<p>Find manuscripts submitted in the last 30 days still pending.</p><pre><code class="language-text-x-trilium-auto">#publication #acceptanceDate &gt;= YEAR #status=accepted</code></pre>
+<p>Find accepted publications this year.</p>
+<h3>Content Research</h3>
+<p>Organize research materials and sources:</p><pre><code class="language-text-x-trilium-auto">#source #reliability &gt;= 8 #topic *=* climate</code></pre>
+<p>Find reliable sources about climate topics.</p><pre><code class="language-text-x-trilium-auto">#quote #author *=* Einstein #verified=true</code></pre>
+<p>Find verified Einstein quotes.</p><pre><code class="language-text-x-trilium-auto">#citation #used=false #relevance=high</code></pre>
+<p>Find high-relevance citations not yet used.</p>
+<h2>Business and Professional Use</h2>
+<h3>Client Management</h3>
+<p>Track client relationships and projects:</p><pre><code class="language-text-x-trilium-auto">#client=acme #project #status=active</code></pre>
+<p>Find active projects for ACME client.</p><pre><code class="language-text-x-trilium-auto">#meeting #client #date &gt;= MONTH #followUp=required</code></pre>
+<p>Find client meetings this month requiring follow-up.</p><pre><code class="language-text-x-trilium-auto">#contract #renewalDate &lt;= TODAY+60 #renewalDate &gt;= TODAY</code></pre>
+<p>Find contracts expiring in the next 60 days.</p><pre><code class="language-text-x-trilium-auto">#invoice #status=unpaid #dueDate &lt; TODAY</code></pre>
+<p>Find overdue unpaid invoices.</p>
+<h3>Process Documentation</h3>
+<p>Maintain procedures and workflows:</p><pre><code class="language-text-x-trilium-auto">#procedure #department=engineering #lastUpdated &lt; TODAY-365</code></pre>
+<p>Find engineering procedures not updated in a year.</p><pre><code class="language-text-x-trilium-auto">#workflow #status=active #automation=possible</code></pre>
+<p>Find active workflows that could be automated.</p><pre><code class="language-text-x-trilium-auto">#checklist #process=onboarding #role=developer</code></pre>
+<p>Find onboarding checklists for developers.</p>
+<h3>Compliance and Auditing</h3>
+<p>Track compliance requirements and audits:</p><pre><code class="language-text-x-trilium-auto">#compliance #standard=sox #nextReview &lt;= TODAY+30</code></pre>
+<p>Find SOX compliance items due for review soon.</p><pre><code class="language-text-x-trilium-auto">#audit #finding #severity=high #status!=resolved</code></pre>
+<p>Find unresolved high-severity audit findings.</p><pre><code class="language-text-x-trilium-auto">#policy #department=hr #effectiveDate &gt;= YEAR</code></pre>
+<p>Find HR policies that became effective this year.</p>
+<h2>Academic and Educational Use</h2>
+<h3>Course Management</h3>
+<p>Organize courses and educational content:</p><pre><code class="language-text-x-trilium-auto">#course #semester=fall-2024 #assignment #dueDate &gt;= TODAY</code></pre>
+<p>Find upcoming assignments for fall 2024 courses.</p><pre><code class="language-text-x-trilium-auto">#lecture #course=physics #topic *=* quantum</code></pre>
+<p>Find physics lectures about quantum topics.</p><pre><code class="language-text-x-trilium-auto">#student #grade &lt; 70 #course=mathematics</code></pre>
+<p>Find students struggling in mathematics.</p><pre><code class="language-text-x-trilium-auto">#syllabus #course #lastUpdated &lt; TODAY-180</code></pre>
+<p>Find syllabi not updated in 6 months.</p>
+<h3>Research Management</h3>
+<p>Track research projects and publications:</p><pre><code class="language-text-x-trilium-auto">#experiment #status=running #endDate &lt;= TODAY+7</code></pre>
+<p>Find experiments ending in the next week.</p><pre><code class="language-text-x-trilium-auto">#dataset #size &gt; 1000000 #cleaned=true #public=false</code></pre>
+<p>Find large, cleaned, private datasets.</p><pre><code class="language-text-x-trilium-auto">#hypothesis #tested=false #priority=high</code></pre>
+<p>Find high-priority untested hypotheses.</p><pre><code class="language-text-x-trilium-auto">#collaboration #institution *=* stanford #status=active</code></pre>
+<p>Find active collaborations with Stanford.</p>
+<h3>Grant and Funding</h3>
+<p>Manage funding applications and requirements:</p><pre><code class="language-text-x-trilium-auto">#grant #deadline &lt;= TODAY+30 #deadline &gt;= TODAY #status=in-progress</code></pre>
+<p>Find grant applications due in the next 30 days.</p><pre><code class="language-text-x-trilium-auto">#funding #amount &gt;= 100000 #status=awarded #startDate &gt;= YEAR</code></pre>
+<p>Find large grants awarded this year.</p><pre><code class="language-text-x-trilium-auto">#report #funding #dueDate &lt;= TODAY+14 #status!=submitted</code></pre>
+<p>Find funding reports due in 2 weeks.</p>
+<h2>Technical Documentation</h2>
+<h3>Code and Development</h3>
+<p>Track code-related notes and documentation:</p><pre><code class="language-text-x-trilium-auto">#bug #severity=critical #status!=fixed #product=webapp</code></pre>
+<p>Find critical unfixed bugs in the web app.</p><pre><code class="language-text-x-trilium-auto">#feature #version=2.0 #status=implemented #tested=false</code></pre>
+<p>Find version 2.0 features that are implemented but not tested.</p><pre><code class="language-text-x-trilium-auto">#api #endpoint #deprecated=true #removalDate &lt;= TODAY+90</code></pre>
+<p>Find deprecated API endpoints scheduled for removal soon.</p><pre><code class="language-text-x-trilium-auto">#architecture #component=database #lastReviewed &lt; TODAY-180</code></pre>
+<p>Find database architecture documentation not reviewed in 6 months.</p>
+<h3>System Administration</h3>
+<p>Manage infrastructure and operations:</p><pre><code class="language-text-x-trilium-auto">#server #status=maintenance #scheduledDate &gt;= TODAY #scheduledDate &lt;= TODAY+7</code></pre>
+<p>Find servers scheduled for maintenance this week.</p><pre><code class="language-text-x-trilium-auto">#backup #status=failed #date &gt;= TODAY-7</code></pre>
+<p>Find backup failures in the last week.</p><pre><code class="language-text-x-trilium-auto">#security #vulnerability #severity=high #patched=false</code></pre>
+<p>Find unpatched high-severity vulnerabilities.</p><pre><code class="language-text-x-trilium-auto">#monitoring #alert #frequency &gt; 10 #period=week</code></pre>
+<p>Find alerts triggering more than 10 times per week.</p>
+<h2>Data Analysis and Reporting</h2>
+<h3>Performance Tracking</h3>
+<p>Monitor metrics and KPIs:</p><pre><code class="language-text-x-trilium-auto">#metric #kpi=true #trend=declining #period=month</code></pre>
+<p>Find declining monthly KPIs.</p><pre><code class="language-text-x-trilium-auto">#report #frequency=weekly #lastGenerated &lt; TODAY-10</code></pre>
+<p>Find weekly reports that haven't been generated in 10 days.</p><pre><code class="language-text-x-trilium-auto">#dashboard #stakeholder=executive #lastUpdated &lt; TODAY-7</code></pre>
+<p>Find executive dashboards not updated this week.</p>
+<h3>Trend Analysis</h3>
+<p>Track patterns and changes over time:</p><pre><code class="language-text-x-trilium-auto">#data #source=sales #period=quarter #analyzed=false</code></pre>
+<p>Find unanalyzed quarterly sales data.</p><pre><code class="language-text-x-trilium-auto">#trend #direction=up #significance=high #period=month</code></pre>
+<p>Find significant positive monthly trends.</p><pre><code class="language-text-x-trilium-auto">#forecast #accuracy &lt; 80 #model=linear #period=quarter</code></pre>
+<p>Find inaccurate quarterly linear forecasts.</p>
+<h2>Search Strategy Tips</h2>
+<h3>Building Effective Queries</h3>
+<ol>
+  <li><strong>Start Specific</strong>: Begin with the most selective criteria</li>
+  <li><strong>Add Gradually</strong>: Build complexity incrementally</li>
+  <li><strong>Test Components</strong>: Verify each part of complex queries</li>
+  <li><strong>Use Shortcuts</strong>: Leverage <code>#</code> and <code>~</code> shortcuts
+    for efficiency</li>
+</ol>
+<h3>Performance Optimization</h3>
+<ol>
+  <li><strong>Use Fast Search</strong>: For large databases, enable fast search
+    when content isn't needed</li>
+  <li><strong>Limit Results</strong>: Add limits to prevent overwhelming result
+    sets</li>
+  <li><strong>Order Strategically</strong>: Put the most useful results first</li>
+  <li><strong>Cache Common Queries</strong>: Save frequently used searches</li>
+</ol>
+<h3>Maintenance Patterns</h3>
+<p>Regular queries for note maintenance:</p><pre><code class="language-text-x-trilium-auto"># Weekly cleanup check
+note.attributeCount = 0 note.type=text note.contentSize &lt; 100 note.dateModified &lt; TODAY-30
+
+# Monthly project review  
+#project #status=active note.dateModified &lt; TODAY-30
+
+# Quarterly archive review
+note.isArchived=false note.dateModified &lt; TODAY-90 note.childrenCount = 0</code></pre>
+<h2>Next Steps</h2>
+<ul>
+  <li><a href="#root/_help_UUBStSxWzjgA">Saved Searches</a> - Convert these examples
+    into reusable saved searches</li>
+  <li><a href="#root/_help_ttFz520bcNLf">Technical Search Details</a> - Understanding
+    performance and implementation</li>
+  <li><a href="#root/_help_WcwMZ2tDZmXK">Search Fundamentals</a> - Review basic
+    concepts and syntax</li>
+</ul>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Search-Fundamentals.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Search-Fundamentals.html
new file mode 100644
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@@ -0,0 +1,153 @@
+<h2>Search Fundamentals</h2>
+<p>Trilium's search system is a powerful tool for finding and organizing
+  notes. It supports multiple search modes, from simple text queries to complex
+  expressions using attributes, relationships, and note properties.</p>
+<h2>Search Types Overview</h2>
+<p>Trilium provides three main search approaches:</p>
+<ol>
+  <li><strong>Full-text Search</strong> - Searches within note titles and content</li>
+  <li><strong>Attribute Search</strong> - Searches based on labels and relations
+    attached to notes</li>
+  <li><strong>Property Search</strong> - Searches based on note metadata (type,
+    creation date, etc.)</li>
+</ol>
+<p>These can be combined in powerful ways to create precise queries.</p>
+<h2>Basic Search Syntax</h2>
+<h3>Simple Text Search</h3><pre><code class="language-text-x-trilium-auto">hello world</code></pre>
+<p>Finds notes containing both "hello" and "world" anywhere in the title
+  or content.</p>
+<h3>Quoted Text Search</h3><pre><code class="language-text-x-trilium-auto">"hello world"</code></pre>
+<p>Finds notes containing the exact phrase "hello world".</p>
+<h3>Attribute Search</h3><pre><code class="language-text-x-trilium-auto">#tag</code></pre>
+<p>Finds notes with the label "tag".</p><pre><code class="language-text-x-trilium-auto">#category=book</code></pre>
+<p>Finds notes with label "category" set to "book".</p>
+<h3>Relation Search</h3><pre><code class="language-text-x-trilium-auto">~author</code></pre>
+<p>Finds notes with a relation named "author".</p><pre><code class="language-text-x-trilium-auto">~author.title=Tolkien</code></pre>
+<p>Finds notes with an "author" relation pointing to a note titled "Tolkien".</p>
+<h2>Search Operators</h2>
+<h3>Text Operators</h3>
+<ul>
+  <li><code>=</code> - Exact match</li>
+  <li><code>!=</code> - Not equal</li>
+  <li><code>*=*</code> - Contains (substring)</li>
+  <li><code>=*</code> - Starts with</li>
+  <li><code>*=</code> - Ends with</li>
+  <li><code>%=</code> - Regular expression match</li>
+  <li><code>~=</code> - Fuzzy exact match</li>
+  <li><code>~*</code> - Fuzzy contains match</li>
+</ul>
+<h3>Numeric Operators</h3>
+<ul>
+  <li><code>=</code> - Equal</li>
+  <li><code>!=</code> - Not equal</li>
+  <li><code>&gt;</code> - Greater than</li>
+  <li><code>&gt;=</code> - Greater than or equal</li>
+  <li><code>&lt;</code> - Less than</li>
+  <li><code>&lt;=</code> - Less than or equal</li>
+</ul>
+<h3>Boolean Operators</h3>
+<ul>
+  <li><code>AND</code> - Both conditions must be true</li>
+  <li><code>OR</code> - Either condition must be true</li>
+  <li><code>NOT</code> or <code>not()</code> - Condition must be false</li>
+</ul>
+<h2>Search Context and Scope</h2>
+<h3>Search Scope</h3>
+<p>By default, search covers:</p>
+<ul>
+  <li>Note titles</li>
+  <li>Note content (for text-based note types)</li>
+  <li>Label names and values</li>
+  <li>Relation names</li>
+  <li>Note properties</li>
+</ul>
+<h3>Fast Search Mode</h3>
+<p>When enabled, fast search:</p>
+<ul>
+  <li>Searches only titles and attributes</li>
+  <li>Skips note content</li>
+  <li>Provides faster results for large databases</li>
+</ul>
+<h3>Archived Notes</h3>
+<ul>
+  <li>Excluded by default</li>
+  <li>Can be included with "Include archived" option</li>
+</ul>
+<h2>Case Sensitivity and Normalization</h2>
+<ul>
+  <li>All searches are case-insensitive</li>
+  <li>Diacritics are normalized ("café" matches "cafe")</li>
+  <li>Unicode characters are properly handled</li>
+</ul>
+<h2>Performance Considerations</h2>
+<h3>Content Size Limits</h3>
+<ul>
+  <li>Note content is limited to 10MB for search processing</li>
+  <li>Larger notes are still searchable by title and attributes</li>
+</ul>
+<h3>Progressive Search Strategy</h3>
+<ol>
+  <li><strong>Exact Search Phase</strong>: Fast exact matching (handles 90%+
+    of searches)</li>
+  <li><strong>Fuzzy Search Phase</strong>: Activated when exact search returns
+    fewer than 5 high-quality results</li>
+  <li><strong>Result Ordering</strong>: Exact matches always appear before fuzzy
+    matches</li>
+</ol>
+<h3>Search Optimization Tips</h3>
+<ul>
+  <li>Use specific terms rather than very common words</li>
+  <li>Combine full-text with attribute searches for precision</li>
+  <li>Use fast search for large databases when content search isn't needed</li>
+  <li>Limit results when dealing with very large result sets</li>
+</ul>
+<h2>Special Characters and Escaping</h2>
+<h3>Reserved Characters</h3>
+<p>These characters have special meaning in search queries:</p>
+<ul>
+  <li><code>#</code> - Label indicator</li>
+  <li><code>~</code> - Relation indicator</li>
+  <li><code>()</code> - Grouping</li>
+  <li><code>"</code>  <code>'</code>  <code>`</code> - Quotes for exact phrases</li>
+</ul>
+<h3>Escaping Special Characters</h3>
+<p>Use backslash to search for literal special characters:</p><pre><code class="language-text-x-trilium-auto">\#hashtag</code></pre>
+<p>Searches for the literal text "#hashtag" instead of a label.</p>
+<p>Use quotes to include special characters in phrases:</p><pre><code class="language-text-x-trilium-auto">"note.txt file"</code></pre>
+<p>Searches for the exact phrase including the dot.</p>
+<h2>Date and Time Values</h2>
+<h3>Special Date Keywords</h3>
+<ul>
+  <li><code>TODAY</code> - Current date</li>
+  <li><code>NOW</code> - Current date and time</li>
+  <li><code>MONTH</code> - Current month</li>
+  <li><code>YEAR</code> - Current year</li>
+</ul>
+<h3>Date Arithmetic</h3><pre><code class="language-text-x-trilium-auto">#dateCreated &gt;= TODAY-30</code></pre>
+<p>Finds notes created in the last 30 days.</p><pre><code class="language-text-x-trilium-auto">#eventDate = YEAR+1</code></pre>
+<p>Finds notes with eventDate set to next year.</p>
+<h2>Search Results and Scoring</h2>
+<h3>Result Ranking</h3>
+<p>Results are ordered by:</p>
+<ol>
+  <li>Relevance score (based on term frequency and position)</li>
+  <li>Note depth (closer to root ranks higher)</li>
+  <li>Alphabetical order for ties</li>
+</ol>
+<h3>Progressive Search Behavior</h3>
+<ul>
+  <li>Exact matches always rank before fuzzy matches</li>
+  <li>High-quality exact matches prevent fuzzy search activation</li>
+  <li>Fuzzy matches help find content with typos or variations</li>
+</ul>
+<h2>Next Steps</h2>
+<ul>
+  <li><a href="#root/_help_ey9TMFyD8SHR">Advanced Search Expressions</a> - Complex
+    queries and combinations</li>
+  <li><a href="#root/_help_yAFfA1SAYlr7">Search Examples and Use Cases</a> -
+    Practical applications</li>
+  <li><a href="#root/_help_UUBStSxWzjgA">Saved Searches</a> - Creating dynamic
+    collections</li>
+  <li><a href="#root/_help_ttFz520bcNLf">Technical Search Details</a> - Under-the-hood
+    implementation</li>
+</ul>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Technical-Search-Details.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Advanced Usage/Search/Technical-Search-Details.html
new file mode 100644
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@@ -0,0 +1,486 @@
+<h2>Technical Search Details</h2>
+<p>This guide provides technical information about Trilium's search implementation,
+  performance characteristics, and optimization strategies for power users
+  and administrators.</p>
+<h2>Search Architecture Overview</h2>
+<h3>Three-Layer Search System</h3>
+<p>Trilium's search operates across three cache layers:</p>
+<ol>
+  <li><strong>Becca (Backend Cache)</strong>: Server-side entity cache containing
+    notes, attributes, and relationships</li>
+  <li><strong>Froca (Frontend Cache)</strong>: Client-side mirror providing
+    fast UI updates</li>
+  <li><strong>Database Layer</strong>: SQLite database with FTS (Full-Text Search)
+    support</li>
+</ol>
+<h3>Search Processing Pipeline</h3>
+<ol>
+  <li><strong>Lexical Analysis</strong>: Query parsing and tokenization</li>
+  <li><strong>Expression Building</strong>: Converting tokens to executable
+    expressions</li>
+  <li><strong>Progressive Execution</strong>: Exact search followed by optional
+    fuzzy search</li>
+  <li><strong>Result Scoring</strong>: Relevance calculation and ranking</li>
+  <li><strong>Result Presentation</strong>: Formatting and highlighting</li>
+</ol>
+<h2>Query Processing Details</h2>
+<h3>Lexical Analysis (Lex)</h3>
+<p>The lexer breaks down search queries into components:</p><pre><code class="language-application-javascript-env-backend">// Input: 'project #status=active note.dateCreated &gt;= TODAY-7'
+// Output:
+{
+  fulltextTokens: ['project'],
+  expressionTokens: ['#status', '=', 'active', 'note', '.', 'dateCreated', '&gt;=', 'TODAY-7']
+}</code></pre>
+<h4>Token Types</h4>
+<ul>
+  <li><strong>Fulltext Tokens</strong>: Regular search terms</li>
+  <li><strong>Expression Tokens</strong>: Attributes, operators, and property
+    references</li>
+  <li><strong>Quoted Strings</strong>: Exact phrase matches</li>
+  <li><strong>Escaped Characters</strong>: Literal special characters</li>
+</ul>
+<h3>Expression Building (Parse)</h3>
+<p>Tokens are converted into executable expression trees:</p><pre><code class="language-application-javascript-env-backend">// Expression tree for: #book AND #author=Tolkien
+AndExp([
+  AttributeExistsExp('label', 'book'),
+  LabelComparisonExp('label', 'author', equals('tolkien'))
+])</code></pre>
+<h4>Expression Types</h4>
+<ul>
+  <li><code>AndExp</code>, <code>OrExp</code>, <code>NotExp</code>: Boolean logic</li>
+  <li><code>AttributeExistsExp</code>: Label/relation existence</li>
+  <li><code>LabelComparisonExp</code>: Label value comparison</li>
+  <li><code>RelationWhereExp</code>: Relation target queries</li>
+  <li><code>PropertyComparisonExp</code>: Note property filtering</li>
+  <li><code>NoteContentFulltextExp</code>: Content search</li>
+  <li><code>OrderByAndLimitExp</code>: Result ordering and limiting</li>
+</ul>
+<h3>Progressive Search Strategy</h3>
+<h4>Phase 1: Exact Search</h4><pre><code class="language-application-javascript-env-backend">// Fast exact matching
+const exactResults = performSearch(expression, searchContext, false);</code></pre>
+<p>Characteristics:</p>
+<ul>
+  <li>Substring matching for text</li>
+  <li>Exact attribute matching</li>
+  <li>Property-based filtering</li>
+  <li>Handles 90%+ of searches</li>
+  <li>Sub-second response time</li>
+</ul>
+<h4>Phase 2: Fuzzy Fallback</h4><pre><code class="language-application-javascript-env-backend">// Activated when exact results &lt; 5 high-quality matches
+if (highQualityResults.length &lt; 5) {
+  const fuzzyResults = performSearch(expression, searchContext, true);
+  return mergeExactAndFuzzyResults(exactResults, fuzzyResults);
+}</code></pre>
+<p>Characteristics:</p>
+<ul>
+  <li>Edit distance calculations</li>
+  <li>Phrase proximity matching</li>
+  <li>Typo tolerance</li>
+  <li>Performance safeguards</li>
+  <li>Exact matches always rank first</li>
+</ul>
+<h2>Performance Characteristics</h2>
+<h3>Search Limits and Thresholds</h3>
+<table>
+  <thead>
+    <tr>
+      <th>Parameter</th>
+      <th>Value</th>
+      <th>Purpose</th>
+    </tr>
+  </thead>
+  <tbody>
+    <tr>
+      <td><code>MAX_SEARCH_CONTENT_SIZE</code>
+      </td>
+      <td>2MB</td>
+      <td>Database-level content filtering</td>
+    </tr>
+    <tr>
+      <td><code>MIN_FUZZY_TOKEN_LENGTH</code>
+      </td>
+      <td>3 chars</td>
+      <td>Minimum length for fuzzy matching</td>
+    </tr>
+    <tr>
+      <td><code>MAX_EDIT_DISTANCE</code>
+      </td>
+      <td>2 chars</td>
+      <td>Maximum character changes for fuzzy</td>
+    </tr>
+    <tr>
+      <td><code>MAX_PHRASE_PROXIMITY</code>
+      </td>
+      <td>10 words</td>
+      <td>Maximum distance for phrase matching</td>
+    </tr>
+    <tr>
+      <td><code>RESULT_SUFFICIENCY_THRESHOLD</code>
+      </td>
+      <td>5 results</td>
+      <td>Threshold for fuzzy activation</td>
+    </tr>
+    <tr>
+      <td><code>ABSOLUTE_MAX_CONTENT_SIZE</code>
+      </td>
+      <td>100MB</td>
+      <td>Hard limit to prevent system crash</td>
+    </tr>
+    <tr>
+      <td><code>ABSOLUTE_MAX_WORD_COUNT</code>
+      </td>
+      <td>2M words</td>
+      <td>Hard limit for word processing</td>
+    </tr>
+  </tbody>
+</table>
+
+<h3>Performance Optimization</h3>
+<h4>Database-Level Optimizations</h4><pre><code class="language-text-x-mariadb">-- Content size filtering at database level
+SELECT noteId, type, mime, content, isProtected
+FROM notes JOIN blobs USING (blobId)
+WHERE type IN ('text', 'code', 'mermaid', 'canvas', 'mindMap') 
+  AND isDeleted = 0 
+  AND LENGTH(content) &lt; 2097152  -- 2MB limit</code></pre>
+<h4>Memory Management</h4>
+<ul>
+  <li>Single-array edit distance calculation</li>
+  <li>Early termination for distant matches</li>
+  <li>Progressive content processing</li>
+  <li>Cached regular expressions</li>
+</ul>
+<h4>Search Context Optimization</h4><pre><code class="language-application-javascript-env-backend">// Efficient search context configuration
+const searchContext = new SearchContext({
+  fastSearch: true,           // Skip content search
+  limit: 50,                 // Reasonable result limit
+  orderBy: 'dateCreated',    // Use indexed property
+  includeArchivedNotes: false // Reduce search space
+});</code></pre>
+<h2>Fuzzy Search Implementation</h2>
+<h3>Edit Distance Algorithm</h3>
+<p>Trilium uses an optimized Levenshtein distance calculation:</p><pre><code class="language-application-javascript-env-backend">// Optimized single-array implementation
+function calculateOptimizedEditDistance(str1, str2, maxDistance) {
+  // Early termination checks
+  if (Math.abs(str1.length - str2.length) &gt; maxDistance) {
+    return maxDistance + 1;
+  }
+  
+  // Single array optimization
+  let previousRow = Array.from({ length: str2.length + 1 }, (_, i) =&gt; i);
+  let currentRow = new Array(str2.length + 1);
+  
+  for (let i = 1; i &lt;= str1.length; i++) {
+    currentRow[0] = i;
+    let minInRow = i;
+    
+    for (let j = 1; j &lt;= str2.length; j++) {
+      const cost = str1[i - 1] === str2[j - 1] ? 0 : 1;
+      currentRow[j] = Math.min(
+        previousRow[j] + 1,        // deletion
+        currentRow[j - 1] + 1,     // insertion
+        previousRow[j - 1] + cost  // substitution
+      );
+      minInRow = Math.min(minInRow, currentRow[j]);
+    }
+    
+    // Early termination if row minimum exceeds threshold
+    if (minInRow &gt; maxDistance) return maxDistance + 1;
+    
+    [previousRow, currentRow] = [currentRow, previousRow];
+  }
+  
+  return previousRow[str2.length];
+}</code></pre>
+<h3>Phrase Proximity Matching</h3>
+<p>For multi-token fuzzy searches:</p><pre><code class="language-application-javascript-env-backend">// Check if tokens appear within reasonable proximity
+function hasProximityMatch(tokenPositions, maxDistance = 10) {
+  // For 2 tokens, simple distance check
+  if (tokenPositions.length === 2) {
+    const [pos1, pos2] = tokenPositions;
+    return pos1.some(p1 =&gt; pos2.some(p2 =&gt; Math.abs(p1 - p2) &lt;= maxDistance));
+  }
+  
+  // For multiple tokens, find sequence within range
+  const findSequence = (remaining, currentPos) =&gt; {
+    if (remaining.length === 0) return true;
+    const [nextPositions, ...rest] = remaining;
+    return nextPositions.some(pos =&gt; 
+      Math.abs(pos - currentPos) &lt;= maxDistance &amp;&amp; 
+      findSequence(rest, pos)
+    );
+  };
+  
+  const [firstPositions, ...rest] = tokenPositions;
+  return firstPositions.some(startPos =&gt; findSequence(rest, startPos));
+}</code></pre>
+<h2>Indexing and Storage</h2>
+<h3>Database Schema Optimization</h3><pre><code class="language-text-x-mariadb">-- Relevant indexes for search performance
+CREATE INDEX idx_notes_type ON notes(type);
+CREATE INDEX idx_notes_isDeleted ON notes(isDeleted);
+CREATE INDEX idx_notes_dateCreated ON notes(dateCreated);
+CREATE INDEX idx_notes_dateModified ON notes(dateModified);
+CREATE INDEX idx_attributes_name ON attributes(name);
+CREATE INDEX idx_attributes_type ON attributes(type);
+CREATE INDEX idx_attributes_value ON attributes(value);</code></pre>
+<h3>Content Processing</h3>
+<p>Notes are processed differently based on type:</p><pre><code class="language-application-javascript-env-backend">// Content preprocessing by note type
+function preprocessContent(content, type, mime) {
+  content = normalize(content.toString());
+  
+  if (type === "text" &amp;&amp; mime === "text/html") {
+    content = stripTags(content);
+    content = content.replace(/&amp;nbsp;/g, " ");
+  } else if (type === "mindMap" &amp;&amp; mime === "application/json") {
+    content = processMindmapContent(content);
+  } else if (type === "canvas" &amp;&amp; mime === "application/json") {
+    const canvasData = JSON.parse(content);
+    const textElements = canvasData.elements
+      .filter(el =&gt; el.type === "text" &amp;&amp; el.text)
+      .map(el =&gt; el.text);
+    content = normalize(textElements.join(" "));
+  }
+  
+  return content.trim();
+}</code></pre>
+<h2>Search Result Processing</h2>
+<h3>Scoring Algorithm</h3>
+<p>Results are scored based on multiple factors:</p><pre><code class="language-application-javascript-env-backend">function computeScore(fulltextQuery, highlightedTokens, enableFuzzyMatching) {
+  let score = 0;
+  
+  // Title matches get higher score
+  if (this.noteTitle.toLowerCase().includes(fulltextQuery.toLowerCase())) {
+    score += 10;
+  }
+  
+  // Path matches (hierarchical context)
+  const pathMatch = this.notePathArray.some(pathNote =&gt; 
+    pathNote.title.toLowerCase().includes(fulltextQuery.toLowerCase())
+  );
+  if (pathMatch) score += 5;
+  
+  // Attribute matches
+  score += this.attributeMatches * 3;
+  
+  // Content snippet quality
+  if (this.contentSnippet &amp;&amp; this.contentSnippet.length &gt; 0) {
+    score += 2;
+  }
+  
+  // Fuzzy match penalty
+  if (enableFuzzyMatching &amp;&amp; this.isFuzzyMatch) {
+    score *= 0.8; // 20% penalty for fuzzy matches
+  }
+  
+  return score;
+}</code></pre>
+<h3>Result Merging</h3>
+<p>Exact and fuzzy results are carefully merged:</p><pre><code class="language-application-javascript-env-backend">function mergeExactAndFuzzyResults(exactResults, fuzzyResults) {
+  // Deduplicate - exact results take precedence
+  const exactNoteIds = new Set(exactResults.map(r =&gt; r.noteId));
+  const additionalFuzzyResults = fuzzyResults.filter(r =&gt; 
+    !exactNoteIds.has(r.noteId)
+  );
+  
+  // Sort within each category
+  exactResults.sort(byScoreAndDepth);
+  additionalFuzzyResults.sort(byScoreAndDepth);
+  
+  // CRITICAL: Exact matches always come first
+  return [...exactResults, ...additionalFuzzyResults];
+}</code></pre>
+<h2>Performance Monitoring</h2>
+<h3>Search Metrics</h3>
+<p>Monitor these performance indicators:</p><pre><code class="language-application-javascript-env-backend">// Performance tracking
+const searchMetrics = {
+  totalQueries: 0,
+  exactSearchTime: 0,
+  fuzzySearchTime: 0,
+  resultCount: 0,
+  cacheHitRate: 0,
+  slowQueries: [] // queries taking &gt; 1 second
+};</code></pre>
+<h3>Memory Usage</h3>
+<p>Track memory consumption:</p><pre><code class="language-application-javascript-env-backend">// Memory monitoring
+const memoryMetrics = {
+  searchCacheSize: 0,
+  activeSearchContexts: 0,
+  largeContentNotes: 0, // notes &gt; 1MB
+  indexSize: 0
+};</code></pre>
+<h3>Query Complexity Analysis</h3>
+<p>Identify expensive queries:</p><pre><code class="language-application-javascript-env-backend">// Query complexity factors
+const complexityFactors = {
+  tokenCount: query.split(' ').length,
+  hasRegex: query.includes('%='),
+  hasFuzzy: query.includes('~=') || query.includes('~*'),
+  hasRelationTraversal: query.includes('.relations.'),
+  hasNestedProperties: (query.match(/\./g) || []).length &gt; 2,
+  hasOrderBy: query.includes('orderBy'),
+  estimatedResultSize: 'unknown'
+};</code></pre>
+<h2>Troubleshooting Performance Issues</h2>
+<h3>Common Performance Problems</h3>
+<h4>Slow Full-Text Search</h4><pre><code class="language-application-javascript-env-backend">// Diagnosis
+- Check note content sizes
+- Verify content type filtering
+- Monitor regex usage
+- Review fuzzy search activation
+
+// Solutions
+- Enable fast search for attribute-only queries
+- Add content size limits
+- Optimize regex patterns
+- Tune fuzzy search thresholds</code></pre>
+<h4>Memory Issues</h4><pre><code class="language-application-javascript-env-backend">// Diagnosis
+- Monitor result set sizes
+- Check for large content processing
+- Review search context caching
+- Identify memory leaks
+
+// Solutions
+- Add result limits
+- Implement progressive loading
+- Clear unused search contexts
+- Optimize content preprocessing</code></pre>
+<h4>High CPU Usage</h4><pre><code class="language-application-javascript-env-backend">// Diagnosis
+- Profile fuzzy search operations
+- Check edit distance calculations
+- Monitor regex compilation
+- Review phrase proximity matching
+
+// Solutions
+- Increase minimum fuzzy token length
+- Reduce maximum edit distance
+- Cache compiled regexes
+- Limit phrase proximity distance</code></pre>
+<h3>Debugging Tools</h3>
+<h4>Debug Mode</h4>
+<p>Enable search debugging:</p><pre><code class="language-application-javascript-env-backend">// Search context with debugging
+const searchContext = new SearchContext({
+  debug: true // Logs expression parsing and execution
+});</code></pre>
+<p>Output includes:</p>
+<ul>
+  <li>Token parsing results</li>
+  <li>Expression tree structure</li>
+  <li>Execution timing</li>
+  <li>Result scoring details</li>
+</ul>
+<h4>Performance Profiling</h4><pre><code class="language-application-javascript-env-backend">// Manual performance measurement
+const startTime = Date.now();
+const results = searchService.findResultsWithQuery(query, searchContext);
+const endTime = Date.now();
+console.log(`Search took ${endTime - startTime}ms for ${results.length} results`);</code></pre>
+<h4>Query Analysis</h4><pre><code class="language-application-javascript-env-backend">// Analyze query complexity
+function analyzeQuery(query) {
+  return {
+    tokenCount: query.split(/\s+/).length,
+    hasAttributes: /#|\~/.test(query),
+    hasProperties: /note\./.test(query),
+    hasRegex: /%=/.test(query),
+    hasFuzzy: /~[=*]/.test(query),
+    complexity: calculateComplexityScore(query)
+  };
+}</code></pre>
+<h2>Configuration and Tuning</h2>
+<h3>Server Configuration</h3>
+<p>Relevant settings in <code>config.ini</code>:</p><pre><code class="language-text-x-toml"># Search-related settings
+[Search]
+maxContentSize=2097152          # 2MB content limit
+minFuzzyTokenLength=3          # Minimum chars for fuzzy
+maxEditDistance=2              # Edit distance limit
+resultSufficiencyThreshold=5   # Fuzzy activation threshold
+enableProgressiveSearch=true   # Enable progressive strategy
+cacheSearchResults=true        # Cache frequent searches
+
+# Performance settings
+[Performance]
+searchTimeoutMs=30000         # 30 second search timeout
+maxSearchResults=1000         # Hard limit on results
+enableSearchProfiling=false   # Performance logging</code></pre>
+<h3>Runtime Tuning</h3>
+<p>Adjust search behavior programmatically:</p><pre><code class="language-application-javascript-env-backend">// Dynamic configuration
+const searchConfig = {
+  maxContentSize: 1024 * 1024,  // 1MB for faster processing
+  enableFuzzySearch: false,      // Exact only for speed
+  resultLimit: 50,               // Smaller result sets
+  useIndexedPropertiesOnly: true // Skip expensive calculations
+};</code></pre>
+<h2>Best Practices for Performance</h2>
+<h3>Query Design</h3>
+<ol>
+  <li><strong>Start Specific</strong>: Use selective criteria first</li>
+  <li><strong>Limit Results</strong>: Always set reasonable limits</li>
+  <li><strong>Use Indexes</strong>: Prefer indexed properties for ordering</li>
+  <li><strong>Avoid Regex</strong>: Use simple operators when possible</li>
+  <li><strong>Cache Common Queries</strong>: Save frequently used searches</li>
+</ol>
+<h3>System Administration</h3>
+<ol>
+  <li><strong>Monitor Performance</strong>: Track slow queries and memory usage</li>
+  <li><strong>Regular Maintenance</strong>: Clean up unused notes and attributes</li>
+  <li><strong>Index Optimization</strong>: Ensure database indexes are current</li>
+  <li><strong>Content Management</strong>: Archive or compress large content</li>
+</ol>
+<h3>Development Guidelines</h3>
+<ol>
+  <li><strong>Test Performance</strong>: Benchmark complex queries</li>
+  <li><strong>Profile Regularly</strong>: Identify performance regressions</li>
+  <li><strong>Optimize Incrementally</strong>: Make small, measured improvements</li>
+  <li><strong>Document Complexity</strong>: Note expensive operations</li>
+</ol>
+<h2>Advanced Configuration</h2>
+<h3>Custom Search Extensions</h3>
+<p>Extend search functionality with custom expressions:</p><pre><code class="language-application-javascript-env-backend">// Custom expression example
+class CustomDateRangeExp extends Expression {
+  constructor(dateField, startDate, endDate) {
+    super();
+    this.dateField = dateField;
+    this.startDate = startDate;
+    this.endDate = endDate;
+  }
+  
+  execute(inputNoteSet, executionContext, searchContext) {
+    // Custom logic for date range filtering
+    // with optimized performance characteristics
+  }
+}</code></pre>
+<h3>Search Result Caching</h3>
+<p>Implement result caching for frequent queries:</p><pre><code class="language-application-javascript-env-backend">// Simple LRU cache for search results
+class SearchResultCache {
+  constructor(maxSize = 100) {
+    this.cache = new Map();
+    this.maxSize = maxSize;
+  }
+  
+  get(queryKey) {
+    if (this.cache.has(queryKey)) {
+      // Move to end (most recently used)
+      const value = this.cache.get(queryKey);
+      this.cache.delete(queryKey);
+      this.cache.set(queryKey, value);
+      return value;
+    }
+    return null;
+  }
+  
+  set(queryKey, results) {
+    if (this.cache.size &gt;= this.maxSize) {
+      // Remove least recently used
+      const firstKey = this.cache.keys().next().value;
+      this.cache.delete(firstKey);
+    }
+    this.cache.set(queryKey, results);
+  }
+}</code></pre>
+<h2>Next Steps</h2>
+<ul>
+  <li><a href="#root/_help_WcwMZ2tDZmXK">Search Fundamentals</a> - Basic concepts
+    and syntax</li>
+  <li><a href="#root/_help_ey9TMFyD8SHR">Advanced Search Expressions</a> - Complex
+    query construction</li>
+  <li><a href="#root/_help_yAFfA1SAYlr7">Search Examples and Use Cases</a> -
+    Practical applications</li>
+  <li><a href="#root/_help_UUBStSxWzjgA">Saved Searches</a> - Creating dynamic
+    collections</li>
+</ul>
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diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation.html
new file mode 100644
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--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation.html	
@@ -0,0 +1,61 @@
+<p>Running Trilium on a server lets you access your notes from any device
+  through a web browser and enables synchronization between multiple Trilium
+  instances. This guide covers the different ways to install and configure
+  Trilium on your server.</p>
+<h2>Choose Your Installation Method</h2>
+<p>The easiest way to get started is with Docker, which works on most systems
+  and architectures. If you prefer not to manage your own server, PikaPods
+  offers managed hosting.</p>
+<p><strong>Recommended approaches:</strong>
+</p>
+<ul>
+  <li><a href="#root/_help_FNVzcT2FwEjq">Docker Installation</a> - Works on AMD64
+    and ARM architectures</li>
+  <li><a href="https://www.pikapods.com/pods?run=trilium-next">PikaPods managed hosting</a> -
+    No server management required</li>
+  <li><a href="#root/_help_Q5jqLlwsnIBb">Packaged Server Installation</a> - Native
+    Linux packages</li>
+</ul>
+<p><strong>Advanced options:</strong>
+</p>
+<ul>
+  <li><a href="#root/_help_baqzSqQefEpE">Manual Installation</a> - Full control
+    over the setup</li>
+  <li><a href="#root/_help_9ErAobCLD1jl">Kubernetes</a> - For container orchestration</li>
+  <li><a href="#root/_help_6YVZgQtfkxkS">NixOS Module</a> - Declarative configuration</li>
+</ul>
+<p>All server installations include both desktop and mobile web interfaces.</p>
+<h2>Configuration</h2>
+<p>Trilium stores its configuration in a <code>config.ini</code> file located
+  in the <a href="#root/_help_dvbMBRXYMM2G">data directory</a>. To customize
+  your installation, copy the sample configuration file and modify it:</p><pre><code class="language-text-x-sh">cp config-sample.ini config.ini</code></pre>
+<p>You can also use environment variables instead of the config file. This
+  is particularly useful for Docker deployments. See the <a href="#root/_help_SneMubD5wTR6">configuration guide</a> for
+  all available options.</p>
+<h3>Changing the Data Directory</h3>
+<p>To store Trilium's data (database, config, backups) in a custom location,
+  set the <code>TRILIUM_DATA_DIR</code> environment variable:</p><pre><code class="language-text-x-sh">export TRILIUM_DATA_DIR=/path/to/your/trilium-data</code></pre>
+<h3>Upload Size Limits</h3>
+<p>By default, Trilium limits file uploads to 250MB. You can adjust this
+  limit based on your needs:</p><pre><code class="language-text-x-sh"># Increase limit to 450MB
+export MAX_ALLOWED_FILE_SIZE_MB=450
+
+# Remove limit entirely (use with caution)
+export TRILIUM_NO_UPLOAD_LIMIT=true</code></pre>
+<h3>Disabling Authentication</h3>
+<p>See&nbsp;<a class="reference-link" href="#root/_help_CpWc4lepON8y">Authentication</a>.</p>
+<h2>Reverse Proxy Setup</h2>
+<p>If you want to access Trilium through a domain name or alongside other
+  web services, you'll need to configure a reverse proxy. Here's a basic
+  nginx configuration:</p><pre><code class="language-text-x-nginx-conf">location /trilium/ {
+    proxy_pass http://127.0.0.1:8080/;
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection 'upgrade';
+    proxy_set_header Host $host;
+    proxy_cache_bypass $http_upgrade;
+}
+
+# Allow larger file uploads (in server block)
+client_max_body_size 0;  # 0 = unlimited</code></pre>
+<p>For Apache configuration, see the <a href="#root/_help_Eu2zkbyE2QPK">Apache proxy setup</a> guide.</p>
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diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Manually.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Manually.html
new file mode 100644
index 0000000000..dbf209758c
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+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Manually.html	
@@ -0,0 +1,43 @@
+<aside class="admonition warning">
+  <p>This page describes manually installing Trilium on your server. <strong>Note that this is a not well supported way to install Trilium, problems may appear, information laid out here is quite out of date. It is recommended to use either</strong>&nbsp;
+    <a
+    class="reference-link" href="#root/_help_FNVzcT2FwEjq">Docker Server Installation</a>&nbsp;<strong>or</strong>&nbsp;<a class="reference-link"
+      href="#root/_help_Q5jqLlwsnIBb">Packaged server installation</a><strong>.</strong>
+  </p>
+</aside>
+<h2>Requirements</h2>
+<p>Trilium is a node.js application. Supported (tested) version of node.js
+  is latest 14.X.X and 16.X.X. Trilium might work with older versions as
+  well.</p>
+<p>You can check your node version with this command (node.js needs to be
+  installed):</p><pre><code class="language-text-x-trilium-auto">node --version</code></pre>
+<p>If your Linux distribution has only an outdated version of node.js, you
+  can take a look at the installation instruction on node.js website, which
+  covers most popular distributions.</p>
+<h3>Dependencies</h3>
+<p>There are some dependencies required. You can see command for Debian and
+  its derivatives (like Ubuntu) below:</p><pre><code class="language-text-x-trilium-auto">sudo apt install libpng16-16 libpng-dev pkg-config autoconf libtool build-essential nasm libx11-dev libxkbfile-dev</code></pre>
+<h2>Installation</h2>
+<h3>Download</h3>
+<p>You can either download source code zip/tar from <a href="https://github.com/TriliumNext/Trilium/releases/latest">https://github.com/TriliumNext/Trilium/releases/latest</a>.</p>
+<p>For the latest version including betas, clone Git repository <strong>from</strong>  <code>main</code>  <strong>branch</strong> with:</p><pre><code class="language-text-x-trilium-auto">git clone -b main https://github.com/triliumnext/trilium.git</code></pre>
+<h2>Installation</h2><pre><code class="language-text-x-trilium-auto">cd trilium
+
+# download all node dependencies
+npm install
+
+# make sure the better-sqlite3 binary is there
+npm rebuild
+
+# bundles &amp; minifies frontend JavaScript
+npm run webpack</code></pre>
+<h2>Run</h2><pre><code class="language-text-x-trilium-auto">cd trilium
+
+# using nohup to make sure trilium keeps running after user logs out
+nohup TRILIUM_ENV=dev node src/www &amp;</code></pre>
+<p>The application by default starts up on port 8080, so you can open your
+  browser and navigate to <a href="http://localhost:8080">http://localhost:8080</a> to
+  access Trilium (replace "localhost" with your hostname).</p>
+<h2>TLS</h2>
+<p>Don't forget to <a href="#root/_help_1G2n2zCStCir">configure TLS</a> which
+  is required for secure usage!</p>
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diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Multiple server instances.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Multiple server instances.html
new file mode 100644
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@@ -0,0 +1,25 @@
+<p>Trilium does not support multiple users. In order to have two or more
+  persons with their own set of notes, multiple server instances must be
+  set up. It is also not possible to use multiple <a href="#root/_help_KFhm9yCthQOh">sync</a> servers.</p>
+<p>To allow multiple server instances on a single physical server:</p>
+<ul>
+  <li>
+    <p>For&nbsp;<a class="reference-link" href="#root/_help_Q5jqLlwsnIBb">Packaged version for Linux</a>&nbsp;or&nbsp;
+      <a
+      class="reference-link" href="#root/_help_baqzSqQefEpE">Manually</a>, if starting the server manually just specify a different
+        port and data directory per instance:</p><pre><code class="language-text-x-trilium-auto">TRILIUM_NETWORK_PORT=8080 TRILIUM_DATA_DIR=/path/to/your/data-dir-A /opt/trilium/trilium.sh</code></pre>
+    <p>For a second instance:</p><pre><code class="language-text-x-trilium-auto">TRILIUM_NETWORK_PORT=8081 TRILIUM_DATA_DIR=/path/to/your/data-dir-B /opt/trilium/trilium.sh</code></pre>
+    <p>If using <code>systemd</code>, then set the <a href="https://serverfault.com/questions/413397/how-to-set-environment-variable-in-systemd-service">environment variables in the service configuration</a>.</p>
+  </li>
+  <li>
+    <p>For&nbsp;<a class="reference-link" href="#root/_help_FNVzcT2FwEjq">Using Docker</a>,
+      simply use two different containers, each with their own port binding and
+      data directory.</p>
+  </li>
+  <li>
+    <p>For&nbsp;<a class="reference-link" href="#root/_help_6YVZgQtfkxkS">On NixOS</a>,
+      the only possible way is to use Docker OCI containers or at least one NixOS
+      container with its own service definition.</p>
+  </li>
+</ul>
+<p>For support or additional context, see the related <a href="https://github.com/orgs/TriliumNext/discussions/1642#discussioncomment-12768808">GitHub Discussion</a>.</p>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/On NixOS.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/On NixOS.html
new file mode 100644
index 0000000000..b965f62fc6
--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/On NixOS.html	
@@ -0,0 +1,15 @@
+<p>This page describes configuring the Trilium module included in NixOS.</p>
+<h2>Requirements</h2>
+<p><a href="https://nixos.org/">NixOS</a> installation.</p>
+<h2>Configuration</h2>
+<p>Add this to your <code>configuration.nix</code>:</p><pre><code class="language-text-x-trilium-auto">services.trilium-server.enable = true;
+
+# default data directory: /var/lib/trilium
+#services.trilium-server.dataDir = "/var/lib/trilium-sync-server";
+
+# default bind address: 127.0.0.1, port 8080
+#services.trilium-server.host = "0.0.0.0";
+#services.trilium-server.port = 12783;</code></pre>
+<p>Uncomment any option you would like to change.</p>
+<p>See the <a href="https://search.nixos.org/options?channel=unstable&amp;from=0&amp;size=50&amp;sort=relevance&amp;type=packages&amp;query=trilium-server">NixOS options list</a> for
+  more options (including nginx reverse proxy configuration).</p>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Packaged version for Linux.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Packaged version for Linux.html
new file mode 100644
index 0000000000..cd726e251f
--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Packaged version for Linux.html	
@@ -0,0 +1,167 @@
+<p>This is essentially Trilium sources + node modules + node.js runtime packaged
+  into one 7z file.</p>
+<h2>Steps</h2>
+<ul>
+  <li>SSH into your server</li>
+  <li>use <code>wget</code> (or <code>curl</code>) to download latest <code>TriliumNotes-Server-[VERSION]-linux-x64.tar.xz</code> (copy
+    link from <a href="https://github.com/TriliumNext/Trilium/releases">release page</a>,
+    notice <code>-Server</code> suffix) on your server.</li>
+  <li>unpack the archive, e.g. using <code>tar -xf -d TriliumNotes-Server-[VERSION]-linux-x64.tar.xz</code>
+  </li>
+  <li><code>cd trilium-linux-x64-server</code>
+  </li>
+  <li><code>./trilium.sh</code>
+  </li>
+  <li>you can open the browser and open http://[your-server-hostname]:8080 and
+    you should see Trilium initialization page</li>
+</ul>
+<p>The problem with above steps is that once you close the SSH connection,
+  the Trilium process is terminated. To avoid that, you have two options:</p>
+<ul>
+  <li>Kill it (with e.g. <kbd>Ctrl</kbd> + <kbd>C</kbd>) and run again like this: <code>nohup ./trilium.sh &amp;</code>.
+    (nohup keeps the process running in the background, <code>&amp;</code> runs
+    it in the background)</li>
+  <li>Configure systemd to automatically run Trilium in the background on every
+    boot</li>
+</ul>
+<h2>Configure Trilium to auto-run on boot with systemd</h2>
+<ul>
+  <li>After downloading, extract and move Trilium:</li>
+</ul><pre><code class="language-text-x-trilium-auto">tar -xvf TriliumNotes-Server-[VERSION]-linux-x64.tar.xz
+sudo mv trilium-linux-x64-server /opt/trilium</code></pre>
+<ul>
+  <li>Create the service:</li>
+</ul><pre><code class="language-text-x-trilium-auto">sudo nano /etc/systemd/system/trilium.service</code></pre>
+<ul>
+  <li>Paste this into the file (replace the user and group as needed):</li>
+</ul><pre><code class="language-text-x-trilium-auto">[Unit]
+Description=Trilium Daemon
+After=syslog.target network.target
+
+[Service]
+User=xxx
+Group=xxx
+Type=simple
+ExecStart=/opt/trilium/trilium.sh
+WorkingDirectory=/opt/trilium/
+
+TimeoutStopSec=20
+# KillMode=process leads to error, according to https://www.freedesktop.org/software/systemd/man/systemd.kill.html
+Restart=always
+
+[Install]
+WantedBy=multi-user.target</code></pre>
+<ul>
+  <li>Save the file (CTRL-S) and exit (CTRL-X)</li>
+  <li>Enable and launch the service:</li>
+</ul><pre><code class="language-text-x-trilium-auto">sudo systemctl enable --now -q trilium</code></pre>
+<ul>
+  <li>You can now open a browser to http://[your-server-hostname]:8080 and you
+    should see the Trilium initialization page.</li>
+</ul>
+<h2>Simple Autoupdate for Server</h2>
+<p>Run as the same User Trilium runs</p>
+<p>if you run as root please remove 'sudo' from the commands</p>
+<p>requires "jq" <code>apt install jq</code>
+</p>
+<p>It will stop the service above, overwrite everything (i expect no config.ini),
+  and start service It also creates a version file in the Trilium directory
+  so it updates only with a newer Version</p><pre><code class="language-text-x-trilium-auto">#!/bin/bash
+
+# Configuration
+REPO="TriliumNext/Trilium"
+PATTERN="TriliumNotes-Server-.*-linux-x64.tar.xz"
+DOWNLOAD_DIR="/var/tmp/trilium_download"
+OUTPUT_DIR="/opt/trilium"
+SERVICE_NAME="trilium"
+VERSION_FILE="$OUTPUT_DIR/version.txt"
+
+# Ensure dependencies are installed
+command -v curl &gt;/dev/null 2&gt;&amp;1 || { echo "Error: curl is required"; exit 1; }
+command -v jq &gt;/dev/null 2&gt;&amp;1 || { echo "Error: jq is required"; exit 1; }
+command -v tar &gt;/dev/null 2&gt;&amp;1 || { echo "Error: tar is required"; exit 1; }
+
+# Create download directory
+mkdir -p "$DOWNLOAD_DIR" || { echo "Error: Cannot create $DOWNLOAD_DIR"; exit 1; }
+
+# Get the latest release version
+LATEST_VERSION=$(curl -sL https://api.github.com/repos/$REPO/releases/latest | jq -r '.tag_name')
+if [ -z "$LATEST_VERSION" ]; then
+  echo "Error: Could not fetch latest release version"
+  exit 1
+fi
+
+# Check current installed version (from version.txt or existing tarball)
+CURRENT_VERSION=""
+if [ -f "$VERSION_FILE" ]; then
+  CURRENT_VERSION=$(cat "$VERSION_FILE")
+elif [ -f "$DOWNLOAD_DIR/TriliumNotes-Server-$LATEST_VERSION-linux-x64.tar.xz" ]; then
+  CURRENT_VERSION="$LATEST_VERSION"
+fi
+
+# Compare versions
+if [ "$CURRENT_VERSION" = "$LATEST_VERSION" ]; then
+  echo "Latest version ($LATEST_VERSION) is already installed"
+  exit 0
+fi
+
+# Download the latest release
+LATEST_URL=$(curl -sL https://api.github.com/repos/$REPO/releases/latest | jq -r ".assets[] | select(.name | test(\"$PATTERN\")) | .browser_download_url")
+if [ -z "$LATEST_URL" ]; then
+  echo "Error: No asset found matching pattern '$PATTERN'"
+  exit 1
+fi
+
+FILE_NAME=$(basename "$LATEST_URL")
+FILE_PATH="$DOWNLOAD_DIR/$FILE_NAME"
+
+# Download if not already present
+if [ -f "$FILE_PATH" ]; then
+  echo "Latest release $FILE_NAME already downloaded"
+else
+  curl -LO --output-dir "$DOWNLOAD_DIR" "$LATEST_URL" || { echo "Error: Download failed"; exit 1; }
+  echo "Downloaded $FILE_NAME to $DOWNLOAD_DIR"
+fi
+
+# Extract the tarball
+EXTRACT_DIR="$DOWNLOAD_DIR/extracted"
+mkdir -p "$EXTRACT_DIR"
+tar -xJf "$FILE_PATH" -C "$EXTRACT_DIR" || { echo "Error: Extraction failed"; exit 1; }
+
+# Find the extracted directory (e.g., TriliumNotes-Server-0.97.2-linux-x64)
+INNER_DIR=$(find "$EXTRACT_DIR" -maxdepth 1 -type d -name "TriliumNotes-Server-*-linux-x64" | head -n 1)
+if [ -z "$INNER_DIR" ]; then
+  echo "Error: Could not find extracted directory matching TriliumNotes-Server-*-linux-x64"
+  exit 1
+fi
+
+# Stop the trilium-server service
+if systemctl is-active --quiet "$SERVICE_NAME"; then
+  echo "Stopping $SERVICE_NAME service..."
+  sudo systemctl stop "$SERVICE_NAME" || { echo "Error: Failed to stop $SERVICE_NAME"; exit 1; }
+fi
+
+# Copy contents to /opt/trilium, overwriting existing files
+echo "Copying contents from $INNER_DIR to $OUTPUT_DIR..."
+sudo mkdir -p "$OUTPUT_DIR"
+sudo cp -r "$INNER_DIR"/* "$OUTPUT_DIR"/ || { echo "Error: Copy failed"; exit 1; }
+echo "$LATEST_VERSION" | sudo tee "$VERSION_FILE" &gt;/dev/null
+echo "Files copied to $OUTPUT_DIR"
+
+# Start the trilium-server service
+echo "Starting $SERVICE_NAME service..."
+sudo systemctl start "$SERVICE_NAME" || { echo "Error: Failed to start $SERVICE_NAME"; exit 1; }
+
+# Clean up
+rm -rf "$EXTRACT_DIR"
+echo "Cleanup complete. Trilium updated to $LATEST_VERSION."</code></pre>
+<h2>Common issues</h2>
+<h3>Outdated glibc</h3><pre><code class="language-text-x-trilium-auto">Error: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /var/www/virtual/.../node_modules/@mlink/scrypt/build/Release/scrypt.node)
+    at Object.Module._extensions..node (module.js:681:18)
+    at Module.load (module.js:565:32)
+    at tryModuleLoad (module.js:505:12)</code></pre>
+<p>If you get an error like this, you need to either upgrade your glibc (typically
+  by upgrading to up-to-date distribution version) or use some other <a href="#root/_help_U9HWXPbFIRW3">server installation</a> method.</p>
+<h2>TLS</h2>
+<p>Don't forget to <a href="#root/_help_1G2n2zCStCir">configure TLS</a>, which
+  is required for secure usage!</p>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Docker.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Docker.html
new file mode 100644
index 0000000000..0b76d32dd2
--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Docker.html	
@@ -0,0 +1,192 @@
+<p>Official docker images are published on docker hub for <strong>AMD64</strong>, <strong>ARMv7</strong> and <strong>ARM64/v8</strong>:
+  <a
+  href="https://hub.docker.com/r/triliumnext/trilium/">https://hub.docker.com/r/triliumnext/trilium/</a>
+</p>
+<h2>Prerequisites</h2>
+<p>Ensure Docker is installed on your system.</p>
+<p>If you need help installing Docker, reference the <a href="https://docs.docker.com/engine/install/">Docker Installation Docs</a>
+</p>
+<p><strong>Note:</strong> Trilium's Docker container requires root privileges
+  to operate correctly.</p>
+<aside class="admonition warning">
+  <p>If you're using a SMB/CIFS share or folder as your Trilium data directory,
+    <a
+    href="https://github.com/TriliumNext/Notes/issues/415#issuecomment-2344824400">you'll need</a>to add the mount options of <code>nobrl</code> and <code>noperm</code> when
+      mounting your SMB share.</p>
+</aside>
+<h2>Running with Docker Compose</h2>
+<h3>Grab the latest docker-compose.yml:</h3><pre><code class="language-text-x-trilium-auto">wget https://raw.githubusercontent.com/TriliumNext/Trilium/master/docker-compose.yml</code></pre>
+<p>Optionally, edit the <code>docker-compose.yml</code> file to configure the
+  container settings prior to starting it. Unless configured otherwise, the
+  data directory will be <code>~/trilium-data</code> and the container will
+  be accessible at port 8080.</p>
+<h3>Start the container:</h3>
+<p>Run the following command to start the container in the background:</p><pre><code class="language-text-x-trilium-auto">docker compose up -d</code></pre>
+<h2>Running without Docker Compose / Further Configuration</h2>
+<h3>Pulling the Docker Image</h3>
+<p>To pull the image, use the following command, replacing <code>[VERSION]</code> with
+  the desired version or tag, such as <code>v0.91.6</code> or just <code>latest</code>.
+  (See published tag names at <a href="https://hub.docker.com/r/triliumnext/trilium/tags">https://hub.docker.com/r/triliumnext/trilium/tags</a>.):</p><pre><code class="language-text-x-trilium-auto">docker pull triliumnext/trilium:v0.91.6</code></pre>
+<p><strong>Warning:</strong> Avoid using the "latest" tag, as it may automatically
+  upgrade your instance to a new minor version, potentially disrupting sync
+  setups or causing other issues.</p>
+<h3>Preparing the Data Directory</h3>
+<p>Trilium requires a directory on the host system to store its data. This
+  directory must be mounted into the Docker container with write permissions.</p>
+<h3>Running the Docker Container</h3>
+<h4>Local Access Only</h4>
+<p>Run the container to make it accessible only from the localhost. This
+  setup is suitable for testing or when using a proxy server like Nginx or
+  Apache.</p><pre><code class="language-text-x-trilium-auto">sudo docker run -t -i -p 127.0.0.1:8080:8080 -v ~/trilium-data:/home/node/trilium-data triliumnext/trilium:[VERSION]</code></pre>
+<ol>
+  <li>Verify the container is running using <code>docker ps</code>.</li>
+  <li>Access Trilium via a web browser at <code>127.0.0.1:8080</code>.</li>
+</ol>
+<h4>Local Network Access</h4>
+<p>To make the container accessible only on your local network, first create
+  a new Docker network:</p><pre><code class="language-text-x-trilium-auto">docker network create -d macvlan -o parent=eth0 --subnet 192.168.2.0/24 --gateway 192.168.2.254 --ip-range 192.168.2.252/27 mynet</code></pre>
+<p>Then, run the container with the network settings:</p><pre><code class="language-text-x-trilium-auto">docker run --net=mynet -d -p 127.0.0.1:8080:8080 -v ~/trilium-data:/home/node/trilium-data triliumnext/trilium:-latest</code></pre>
+<p>To set a different user ID (UID) and group ID (GID) for the saved data,
+  use the <code>USER_UID</code> and <code>USER_GID</code> environment variables:</p><pre><code class="language-text-x-trilium-auto">docker run --net=mynet -d -p 127.0.0.1:8080:8080 -e "USER_UID=1001" -e "USER_GID=1001" -v ~/trilium-data:/home/node/trilium-data triliumnext/trilium:-latest</code></pre>
+<p>Find the local IP address using <code>docker inspect [container_name]</code> and
+  access the service from devices on the local network.</p><pre><code class="language-text-x-trilium-auto">docker ps
+docker inspect [container_name]</code></pre>
+<h4>Global Access</h4>
+<p>To allow access from any IP address, run the container as follows:</p><pre><code class="language-text-x-trilium-auto">docker run -d -p 0.0.0.0:8080:8080 -v ~/trilium-data:/home/node/trilium-data triliumnext/trilium:[VERSION]</code></pre>
+<p>Stop the container with <code>docker stop &lt;CONTAINER ID&gt;</code>,
+  where the container ID is obtained from <code>docker ps</code>.</p>
+<h3>Custom Data Directory</h3>
+<p>For a custom data directory, use:</p><pre><code class="language-text-x-trilium-auto">-v ~/YourOwnDirectory:/home/node/trilium-data triliumnext/trilium:[VERSION]</code></pre>
+<p>If you want to run your instance in a non-default way, please use the
+  volume switch as follows: <code>-v ~/YourOwnDirectory:/home/node/trilium-data triliumnext/trilium:&lt;VERSION&gt;</code>.
+  It is important to be aware of how Docker works for volumes, with the first
+  path being your own and the second the one to virtually bind to. <a href="https://docs.docker.com/storage/volumes/">https://docs.docker.com/storage/volumes/</a> The
+  path before the colon is the host directory, and the path after the colon
+  is the container's path. More details can be found in the <a href="https://docs.docker.com/storage/volumes/">Docker Volumes Documentation</a>.</p>
+<h2>Reverse Proxy</h2>
+<ol>
+  <li><a href="#root/_help_vFhVZ4ZRNxLY">Nginx</a>
+  </li>
+  <li><a href="#root/_help_Eu2zkbyE2QPK">Apache</a>
+  </li>
+</ol>
+<h3>Note on --user Directive</h3>
+<p>The <code>--user</code> directive is unsupported. Instead, use the <code>USER_UID</code> and <code>USER_GID</code> environment
+  variables to set the appropriate user and group IDs.</p>
+<h3>Note on timezones</h3>
+<p>If you are having timezone issues and you are not using docker-compose,
+  you may need to add a <code>TZ</code> environment variable with the <a href="https://en.wikipedia.org/wiki/List_of_tz_database_time_zones">TZ identifier</a> of
+  your local timezone.</p>
+<h2>Rootless Docker Image</h2>
+<aside class="admonition note">
+  <p>Please keep in mind that the data directory is at <code>/home/trilium/trilium-data</code> instead
+    of the typical <code>/home/node/trilium-data</code>. This is because a new
+    user is created and used to run Trilium within the rootless containers.</p>
+</aside>
+<p>If you would prefer to run Trilium without having to run the Docker container
+  as <code>root</code>, you can use either of the provided Debian (default)
+  and Alpine-based images with the <code>rootless</code> tag.&nbsp;</p>
+<p><em><strong>If you're unsure, stick to the “rootful” Docker image referenced above.</strong></em>
+</p>
+<p>Below are some commands to pull the rootless images:</p><pre><code class="language-text-x-trilium-auto"># For Debian-based image
+docker pull triliumnext/trilium:rootless
+
+# For Alpine-based image
+docker pull triliumnext/trilium:rootless-alpine</code></pre>
+<h3>Why Rootless?</h3>
+<p>Running containers as non-root is a security best practice that reduces
+  the potential impact of container breakouts. If an attacker manages to
+  escape the container, they'll only have the permissions of the non-root
+  user instead of full root access to the host.</p>
+<h3>How It Works</h3>
+<p>The rootless Trilium image:</p>
+<ol>
+  <li>Creates a non-root user (<code>trilium</code>) during build time</li>
+  <li>Configures the application to run as this non-root user</li>
+  <li>Allows runtime customization of the user's UID/GID via Docker's <code>--user</code> flag</li>
+  <li>Does not require a separate Docker <code>entrypoint</code> script</li>
+</ol>
+<h3>Usage</h3>
+<h4><strong>Using docker-compose (Recommended)</strong></h4><pre><code class="language-text-x-trilium-auto"># Run with default UID/GID (1000:1000)
+docker-compose -f docker-compose.rootless.yml up -d
+
+# Run with custom UID/GID (e.g., match your host user)
+TRILIUM_UID=$(id -u) TRILIUM_GID=$(id -g) docker-compose -f docker-compose.rootless.yml up -d
+
+# Specify a custom data directory
+TRILIUM_DATA_DIR=/path/to/your/data TRILIUM_UID=$(id -u) TRILIUM_GID=$(id -g) docker-compose -f docker-compose.rootless.yml up -d
+</code></pre>
+<h4><strong>Using Docker CLI</strong></h4><pre><code class="language-text-x-trilium-auto"># Build the image
+docker build -t triliumnext/trilium:rootless -f apps/server/Dockerfile.rootless .
+
+# Run with default UID/GID (1000:1000)
+docker run -d --name trilium -p 8080:8080 -v ~/trilium-data:/home/trilium/trilium-data triliumnext/trilium:rootless
+
+# Run with custom UID/GID
+docker run -d --name trilium -p 8080:8080 --user $(id -u):$(id -g) -v ~/trilium-data:/home/trilium/trilium-data triliumnext/trilium:rootless
+</code></pre>
+<h3>Environment Variables</h3>
+<ul>
+  <li><code>TRILIUM_UID</code>: UID to use for the container process (passed
+    to Docker's <code>--user</code> flag)</li>
+  <li><code>TRILIUM_GID</code>: GID to use for the container process (passed
+    to Docker's <code>--user</code> flag)</li>
+  <li><code>TRILIUM_DATA_DIR</code>: Path to the data directory inside the container
+    (default: <code>/home/node/trilium-data</code>)</li>
+</ul>
+<p>For a complete list of configuration environment variables (network settings,
+  authentication, sync, etc.), see <a class="reference-link" href="#root/_help_1CEQXvOOO4EK">Configuration (config.ini or environment variables)</a>.</p>
+<h3>Volume Permissions</h3>
+<p>If you encounter permission issues with the data volume, ensure that:</p>
+<ol>
+  <li>The host directory has appropriate permissions for the UID/GID you're
+    using</li>
+  <li>You're setting both <code>TRILIUM_UID</code> and <code>TRILIUM_GID</code> to
+    match the owner of the host directory</li>
+</ol><pre><code class="language-text-x-trilium-auto"># For example, if your data directory is owned by UID 1001 and GID 1001:
+TRILIUM_UID=1001 TRILIUM_GID=1001 docker-compose -f docker-compose.rootless.yml up -d
+</code></pre>
+<h3>Considerations</h3>
+<ul>
+  <li>The container starts with a specific UID/GID which can be customized at
+    runtime</li>
+  <li>Unlike the traditional setup, this approach does not use a separate entrypoint
+    script with <code>usermod</code>/<code>groupmod</code> commands</li>
+  <li>The container cannot modify its own UID/GID at runtime, which is a security
+    feature of rootless containers</li>
+</ul>
+<h3>Available Rootless Images</h3>
+<p>Two rootless variants are provided:</p>
+<ol>
+  <li><strong>Debian-based</strong> (default): Uses the Debian Bullseye Slim
+    base image
+    <ul>
+      <li>Dockerfile: <code>apps/server/Dockerfile.rootless</code>
+      </li>
+      <li>Recommended for most users</li>
+    </ul>
+  </li>
+  <li><strong>Alpine-based</strong>: Uses the Alpine base image for smaller
+    size
+    <ul>
+      <li>Dockerfile: <code>apps/server/Dockerfile.alpine.rootless</code>
+      </li>
+      <li>Smaller image size, but may have compatibility issues with some systems</li>
+    </ul>
+  </li>
+</ol>
+<h3>Building Custom Rootless Images</h3>
+<p>If you would prefer, you can also customize the UID/GID at build time:</p><pre><code class="language-text-x-trilium-auto"># For Debian-based image with custom UID/GID
+docker build --build-arg USER=myuser --build-arg UID=1001 --build-arg GID=1001 \
+  -t triliumnext/trilium:rootless-custom -f apps/server/Dockerfile.rootless .
+
+# For Alpine-based image with custom UID/GID
+docker build --build-arg USER=myuser --build-arg UID=1001 --build-arg GID=1001 \
+  -t triliumnext/trilium:alpine-rootless-custom -f apps/server/Dockerfile.alpine.rootless .
+</code></pre>
+<p>Available build arguments:</p>
+<ul>
+  <li><code>USER</code>: Username for the non-root user (default: trilium)</li>
+  <li><code>UID</code>: User ID for the non-root user (default: 1000)</li>
+  <li><code>GID</code>: Group ID for the non-root user (default: 1000)</li>
+</ul>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Kubernetes.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Kubernetes.html
new file mode 100644
index 0000000000..0fb29eb7ed
--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Kubernetes.html	
@@ -0,0 +1,33 @@
+<p>As Trilium can be run in Docker it also can be deployed in Kubernetes.
+  You can either use our Helm chart, a community Helm chart, or roll your
+  own Kubernetes deployment.</p>
+<p>The recommended way is to use a Helm chart.</p>
+<h2>Root privileges</h2>
+<aside class="admonition note">
+  <p>The Trilium container at this time needs to be run with root privileges.
+    It will swap to UID and GID <code>1000:1000</code> to run the <code>node</code> process
+    after execution though, so the main process doesn't run with root privileges.</p>
+</aside>
+<p>The Trilium docker container needs to be run with root privileges. The
+  node process inside the container will be started with reduced privileges
+  (uid:gid 1000:1000) after some initialization logic. Please make sure that
+  you don't use a security context (PodSecurityContext) which changes the
+  user ID. To use a different uid:gid for file storage and the application,
+  please use the <code>USER_UID</code> &amp; <code>USER_GID</code> environment
+  variables.</p>
+<p>The docker image will also fix the permissions of <code>/home/node</code> so
+  you don't have to use an init container.</p>
+<h2>Helm Charts</h2>
+<p><a href="https://github.com/TriliumNext/helm-charts">Official Helm chart</a> from
+  TriliumNext Unofficial helm chart by <a href="https://github.com/ohdearaugustin">ohdearaugustin</a>:
+  <a
+  href="https://github.com/ohdearaugustin/charts">https://github.com/ohdearaugustin/charts</a>
+</p>
+<h2>Adding a Helm repository</h2>
+<p>Below is an example of how</p><pre><code class="language-text-x-trilium-auto">helm repo add trilium https://triliumnext.github.io/helm-charts
+"trilium" has been added to your repositories</code></pre>
+<h2>How to install a chart</h2>
+<p>After reviewing the <a href="https://github.com/TriliumNext/helm-charts/blob/main/charts/trilium/values.yaml"><code>values.yaml</code></a> from
+  the Helm chart, modifying as required and then creating your own:</p><pre><code class="language-text-x-trilium-auto">helm install --create-namespace --namespace trilium trilium trilium/trilium -f values.yaml</code></pre>
+<p>For more information on using Helm, please refer to the Helm documentation,
+  or create a Discussion in the TriliumNext GitHub Organization.</p>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Apache.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Apache.html
new file mode 100644
index 0000000000..4e2bedc8aa
--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Apache.html	
@@ -0,0 +1,79 @@
+<p>I've assumed you have created a DNS A record for <code>trilium.yourdomain.com</code> that
+  you want to use for your Trilium server.</p>
+<ol>
+  <li>
+    <p>Download docker image and create container</p><pre><code class="language-text-x-trilium-auto"> docker pull triliumnext/trilium:[VERSION]
+ docker create --name trilium -t -p 127.0.0.1:8080:8080 -v ~/trilium-data:/home/node/trilium-data triliumnext/trilium:[VERSION]</code></pre>
+  </li>
+  <li>
+    <p>Configure Apache proxy and websocket proxy</p>
+    <ol>
+      <li>
+        <p>Enable apache proxy modules</p><pre><code class="language-text-x-trilium-auto"> a2enmod ssl
+ a2enmod proxy
+ a2enmod proxy_http
+ a2enmod proxy_wstunnel</code></pre>
+      </li>
+      <li>
+        <p>Create a new let's encrypt certificate</p><pre><code class="language-text-x-trilium-auto"> sudo certbot certonly -d trilium.mydomain.com</code></pre>
+        <p>Choose standalone (2) and note the location of the created certificates
+          (typically /etc/letsencrypt/live/...)</p>
+      </li>
+      <li>
+        <p>Create a new virtual host file for apache (you may want to use <code>apachectl -S</code> to
+          determine the server root location, mine is /etc/apache2)</p><pre><code class="language-text-x-trilium-auto"> sudo nano /etc/apache2/sites-available/trilium.yourdomain.com.conf</code></pre>
+        <p>Paste (and customize) the following text into the configuration file</p><pre><code class="language-text-x-trilium-auto"> 
+     ServerName http://trilium.yourdomain.com
+     RewriteEngine on
+         RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]
+ 
+ 
+     ServerName https://trilium.yourdomain.com
+     RewriteEngine On
+     RewriteCond %{HTTP:Connection} Upgrade [NC]
+     RewriteCond %{HTTP:Upgrade} websocket [NC]
+     RewriteRule /(.*) ws://localhost:8080/$1 [P,L]
+     AllowEncodedSlashes NoDecode
+     ProxyPass / http://localhost:8080/ nocanon
+     ProxyPassReverse / http://localhost:8080/
+     SSLCertificateFile /etc/letsencrypt/live/trilium.yourdomain.com/fullchain.pem
+     SSLCertificateKeyFile /etc/letsencrypt/live/trilium.yourdomain.com/privkey.pem
+     Include /etc/letsencrypt/options-ssl-apache.conf
+ </code></pre>
+      </li>
+      <li>
+        <p>Enable the virtual host with <code>sudo a2ensite trilium.yourdomain.com.conf</code>
+        </p>
+      </li>
+      <li>
+        <p>Reload apache2 with <code>sudo systemctl reload apache2</code>
+        </p>
+      </li>
+    </ol>
+  </li>
+  <li>
+    <p>Create and enable a systemd service to start the docker container on boot</p>
+    <ol>
+      <li>
+        <p>Create a new empty file called <code>/lib/systemd/system/trilium.service</code> with
+          the contents</p><pre><code class="language-text-x-trilium-auto"> [Unit]
+ Description=Trilium Server
+ Requires=docker.service
+ After=docker.service
+
+ [Service]
+ Restart=always
+ ExecStart=/usr/bin/docker start -a trilium
+ ExecStop=/usr/bin/docker stop -t 2 trilium
+
+ [Install]
+ WantedBy=local.target</code></pre>
+      </li>
+      <li>
+        <p>Install, enable and start service</p><pre><code class="language-text-x-trilium-auto"> sudo systemctl daemon-reload
+ sudo systemctl enable trilium.service
+ sudo systemctl start trilium.service</code></pre>
+      </li>
+    </ol>
+  </li>
+</ol>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Nginx.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Nginx.html
new file mode 100644
index 0000000000..7b7e958a0d
--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Nginx.html	
@@ -0,0 +1,74 @@
+<p>Configure Nginx proxy and HTTPS. The operating system here is Ubuntu 18.04.</p>
+<ol>
+  <li>
+    <p>Download Nginx and remove Apache2</p><pre><code class="language-text-x-trilium-auto">sudo apt-get install nginx
+sudo apt-get remove apache2</code></pre>
+  </li>
+  <li>
+    <p>Create configure file</p><pre><code class="language-text-x-trilium-auto">cd /etc/nginx/conf.d
+vim default.conf</code></pre>
+  </li>
+  <li>
+    <p>Fill the file with the context shown below, part of the setting show be
+      changed. Then you can enjoy your web with HTTPS forced and proxy.</p><pre><code class="language-text-x-trilium-auto"># This part configures, where your Trilium server is running
+upstream trilium {
+  zone trilium 64k;
+  server 127.0.0.1:8080; # change it to a different hostname and port if non-default is used
+  keepalive 2;
+}
+
+# This part is for proxy and HTTPS configure
+server {
+    listen 443 ssl;
+    server_name trilium.example.net; #change trilium.example.net to your domain without HTTPS or HTTP.
+    ssl_certificate /etc/ssl/note/example.crt; #change /etc/ssl/note/example.crt to your path of crt file.
+    ssl_certificate_key /etc/ssl/note/example.net.key; #change /etc/ssl/note/example.net.key to your path of key file.
+    ssl_session_cache builtin:1000 shared:SSL:10m;
+    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
+    ssl_ciphers HIGH:!aNULL:!eNULL:!EXPORT:!CAMELLIA:!DES:!MD5:!PSK:!RC4;
+    ssl_prefer_server_ciphers on;
+    access_log /var/log/nginx/access.log; #check the path of access.log, if it doesn't fit your file, change it
+
+    location / {
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_pass http://trilium;
+        proxy_read_timeout 90;
+    }
+}
+
+# This part is for HTTPS forced
+server {
+    listen 80;
+    server_name trilium.example.net; # change to your domain
+    return 301 https://$server_name$request_uri;
+}</code></pre>
+  </li>
+  <li>
+    <p>Alternatively if you want to serve the instance under a different path
+      (useful e.g. if you want to serve multiple instances), update the location
+      block like so:</p>
+    <ul>
+      <li>update the location with your desired path (make sure to not leave a trailing
+        slash "/", if your <code>proxy_pass</code> does not end on a slash as well)</li>
+      <li>add the <code>proxy_cookie_path</code> directive with the same path: this
+        allows you to stay logged in at multiple instances at the same time.</li>
+    </ul><pre><code class="language-text-x-trilium-auto">    location /trilium/instance-one {
+        rewrite /trilium/instance-one/(.*) /$1  break;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_pass http://trilium;
+        proxy_cookie_path / /trilium/instance-one
+        proxy_read_timeout 90;
+    }
+</code></pre>
+  </li>
+</ol>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/Authentication.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/Authentication.html
new file mode 100644
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--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/Authentication.html	
@@ -0,0 +1,35 @@
+<h2>Disabling authentication</h2>
+<p>If you are running Trilium on <code>localhost</code> only or if authentication
+  is handled by another component, you can disable Trilium’s authentication
+  by adding the following to <code>config.ini</code>:</p><pre><code class="language-text-x-trilium-auto">[General]
+noAuthentication=true</code></pre>
+<p>Disabling authentication will bypass even the&nbsp;<a class="reference-link"
+  href="#root/_help_iYzJELZlnPVk">Multi-Factor Authentication</a>&nbsp;since
+  v0.94.1.</p>
+<h2>Understanding how the session works</h2>
+<p>Once logged into Trilium, the application will store this information
+  about the login into a cookie on the browser, but also as a session on
+  the server.</p>
+<p>If “Remember me” is checked, then the login will expire in 21 days. This
+  period can be adjusted by modifying the <code>Session.cookieMaxAge</code> value
+  in <code>config.ini</code>. For example, to have the session expire in one
+  day:</p><pre><code class="language-text-x-trilium-auto">[Session]
+cookieMaxAge=86400</code></pre>
+<p>When “Remember me” is unchecked, the behavior is different. At client/browser
+  level the authentication does not have any expiration date, but it will
+  be automatically cleared as soon as the user closes the browser. Nevertheless,
+  the server will also dismiss this authentication in around 24 hours from
+  the <em>last interaction with the application</em>.</p>
+<h2>Viewing active sessions</h2>
+<p>The login sessions are now stored in the same&nbsp;<a class="reference-link"
+  href="#root/_help_lvXOQ00dcRlk">Database</a>&nbsp;as the user data. In
+  order to view which sessions are active, open the&nbsp;<a class="reference-link"
+  href="#root/_help_hDJ4mPkZJQ4E">SQL Console</a>&nbsp;and run the following
+  query:</p><pre><code class="language-text-x-trilium-auto">SELECT * FROM sessions</code></pre>
+<p>Expired sessions are periodically cleaned by the server, generally an
+  hourly interval.</p>
+<h2>See also</h2>
+<ul>
+  <li><a class="reference-link" href="#root/_help_iYzJELZlnPVk">Multi-Factor Authentication</a>
+  </li>
+</ul>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/Multi-Factor Authentication.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/Multi-Factor Authentication.html
new file mode 100644
index 0000000000..408c60c333
--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/Multi-Factor Authentication.html	
@@ -0,0 +1,103 @@
+<p>Multi-factor authentication (MFA) is a security process that requires
+  users to provide two or more verification factors to gain access to a system,
+  application, or account. This adds an extra layer of protection beyond
+  just using a password.</p>
+<p>By requiring more than one verification method, MFA helps reduce the risk
+  of unauthorized access, even if someone has obtained your password. It’s
+  highly recommended for securing sensitive information stored in your notes.</p>
+<aside
+class="admonition warning">
+  <p>OpenID and TOTP cannot be both used at the same time!</p>
+  </aside>
+  <h2>Log in with your Google Account with OpenID!</h2>
+  <p>OpenID is a standardized way to let you log into websites using an account
+    from another service, like Google, to verify your identity.</p>
+  <h2>Why Time-based One Time Passwords?</h2>
+  <p>TOTP (Time-Based One-Time Password) is a security feature that generates
+    a unique, temporary code on your device, like a smartphone, which changes
+    every 30 seconds. You use this code, along with your password, to log into
+    your account, making it much harder for anyone else to access them.</p>
+  <h2>Setup</h2>
+  <p>MFA can only be set up on a server instance.</p>
+  <aside class="admonition note">
+    <p>When Multi-Factor Authentication (MFA) is enabled on a server instance,
+      a new desktop instance may fail to sync with it. As a temporary workaround,
+      you can disable MFA to complete the initial sync, then re-enable MFA afterward.
+      This issue will be addressed in a future release.</p>
+  </aside>
+  <h3>TOTP</h3>
+  <ol>
+    <li>Go to "Menu" -&gt; "Options" -&gt; "MFA"</li>
+    <li>Click the “Enable Multi-Factor Authentication” checkbox if not checked</li>
+    <li>Choose “Time-Based One-Time Password (TOTP)” under MFA Method</li>
+    <li>Click the "Generate TOTP Secret" button</li>
+    <li>Copy the generated secret to your authentication app/extension</li>
+    <li>Click the "Generate Recovery Codes" button</li>
+    <li>Save the recovery codes. Recovery codes can be used once in place of the
+      TOTP if you loose access to your authenticator. After a rerecovery code
+      is used, it will show the unix timestamp when it was used in the MFA options
+      tab.</li>
+    <li>Re-login will be required after TOTP setup is finished (After you refreshing
+      the page).</li>
+  </ol>
+  <h3>OpenID</h3>
+  <p>In order to setup OpenID, you will need to setup a authentication provider.
+    This requires a bit of extra setup. Follow <a href="https://developers.google.com/identity/openid-connect/openid-connect">these instructions</a> to
+    setup an OpenID service through google. The Redirect URL of Trilium is <code>https://&lt;your-trilium-domain&gt;/callback</code>.</p>
+  <ol>
+    <li>Set the <code>oauthBaseUrl</code>, <code>oauthClientId</code> and <code>oauthClientSecret</code> in
+      the <code>config.ini</code> file (check&nbsp;<a class="reference-link" href="#root/_help_SneMubD5wTR6">Configuration (config.ini or environment variables)</a>&nbsp;for
+      more information).
+      <ol>
+        <li>You can also setup through environment variables:
+          <ul>
+            <li>Standard: <code>TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHBASEURL</code>, <code>TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHCLIENTID</code>, <code>TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHCLIENTSECRET</code>
+            </li>
+            <li>Legacy (still supported): <code>TRILIUM_OAUTH_BASE_URL</code>, <code>TRILIUM_OAUTH_CLIENT_ID</code>, <code>TRILIUM_OAUTH_CLIENT_SECRET</code>
+            </li>
+          </ul>
+        </li>
+        <li><code>oauthBaseUrl</code> should be the link of your Trilium instance server,
+          for example, <code>https://&lt;your-trilium-domain&gt;</code>.</li>
+      </ol>
+    </li>
+    <li>Restart the server</li>
+    <li>Go to "Menu" -&gt; "Options" -&gt; "MFA"</li>
+    <li>Click the “Enable Multi-Factor Authentication” checkbox if not checked</li>
+    <li>Choose “OAuth/OpenID” under MFA Method</li>
+    <li>Refresh the page and login through OpenID provider</li>
+  </ol>
+  <aside class="admonition note">
+    <p>The default OAuth issuer is Google. To use other services such as Authentik
+      or Auth0, you can configure the settings via <code>oauthIssuerBaseUrl</code>, <code>oauthIssuerName</code>,
+      and <code>oauthIssuerIcon</code> in the <code>config.ini</code> file. Alternatively,
+      these values can be set using environment variables:</p>
+    <ul>
+      <li>Standard: <code>TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHISSUERBASEURL</code>, <code>TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHISSUERNAME</code>, <code>TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHISSUERICON</code>
+      </li>
+      <li>Legacy (still supported): <code>TRILIUM_OAUTH_ISSUER_BASE_URL</code>, <code>TRILIUM_OAUTH_ISSUER_NAME</code>, <code>TRILIUM_OAUTH_ISSUER_ICON</code>
+      </li>
+    </ul>
+    <p><code>oauthIssuerName</code> and <code>oauthIssuerIcon</code> are required
+      for displaying correct issuer information at the Login page.</p>
+  </aside>
+  <h4>Authentik</h4>
+  <p>If you don’t already have a running Authentik instance, please follow
+    <a
+    href="https://docs.goauthentik.io/docs/install-config/install/docker-compose">these instructions</a>to set one up.</p>
+  <ol>
+    <li>In the Authentik admin dashboard, create a new OAuth2 application by following
+      <a
+      href="https://docs.goauthentik.io/docs/add-secure-apps/providers/oauth2/create-oauth2-provider">these steps</a>. Make sure to set the Redirect URL to: <code>https://&lt;your-trilium-domain&gt;/callback</code>.</li>
+    <li>In your config.ini file, set the relevant OAuth variables:
+      <ol>
+        <li><code>oauthIssuerBaseUrl</code> → Use the <code>OpenID Configuration Issuer</code> URL
+          from your application's overview page.</li>
+        <li><code>oauthIssuerName</code> and <code>oauthIssuerIcon</code> → Set these
+          to customize the name and icon displayed on the login page. If omitted,
+          Google’s name and icon will be shown by default.</li>
+      </ol>
+    </li>
+    <li>Apply the changes by restarting your server.</li>
+    <li>Proceed with the remaining steps starting from Step 3 in the OpenID section.</li>
+  </ol>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/TLS Configuration.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/TLS Configuration.html
new file mode 100644
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--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/1_Server Installation/TLS Configuration.html	
@@ -0,0 +1,48 @@
+<p>Configuring TLS is essential for <a href="#root/_help_U9HWXPbFIRW3">server installation</a> in
+  Trilium. This guide details the steps to set up TLS within Trilium itself.</p>
+<p>For a more robust solution, consider using TLS termination with a reverse
+  proxy (recommended, e.g., Nginx). You can follow a <a href="https://www.digitalocean.com/community/tutorials/how-to-secure-nginx-with-let-s-encrypt-on-ubuntu-20-04">guide like this</a> for
+  such setups.</p>
+<h2>Obtaining a TLS Certificate</h2>
+<p>You have two options for obtaining a TLS certificate:</p>
+<ul>
+  <li><strong>Recommended</strong>: Obtain a TLS certificate signed by a root
+    certificate authority. For personal use, <a href="https://letsencrypt.org">Let's Encrypt</a> is
+    an excellent choice. It is free, automated, and straightforward. Certbot
+    can facilitate automatic TLS setup.</li>
+  <li>Generate a self-signed certificate. This option is not recommended due
+    to the additional complexity of importing the certificate into all machines
+    connecting to the server.</li>
+</ul>
+<h2>Modifying <code>config.ini</code></h2>
+<p>Once you have your certificate, modify the <code>config.ini</code> file
+  in the <a href="#root/_help_dvbMBRXYMM2G">data directory</a> to configure
+  Trilium to use it:</p><pre><code class="language-text-x-trilium-auto">[Network]
+port=8080
+# Set to true for TLS/SSL/HTTPS (secure), false for HTTP (insecure).
+https=true
+# Path to the certificate (run "bash bin/generate-cert.sh" to generate a self-signed certificate).
+# Relevant only if https=true
+certPath=/[username]/.acme.sh/[hostname]/fullchain.cer
+keyPath=/[username]/.acme.sh/[hostname]/example.com.key</code></pre>
+<p>You can also review the <a href="#root/_help_SneMubD5wTR6">configuration</a> file
+  to provide all <code>config.ini</code> values as environment variables instead.
+  For example, you can configure TLS using environment variables:</p><pre><code class="language-text-x-sh">export TRILIUM_NETWORK_HTTPS=true
+export TRILIUM_NETWORK_CERTPATH=/path/to/cert.pem
+export TRILIUM_NETWORK_KEYPATH=/path/to/key.pem</code></pre>
+<p>The above example shows how this is set up in an environment where the
+  certificate was generated using Let's Encrypt's ACME utility. Your paths
+  may differ. For Docker installations, ensure these paths are within a volume
+  or another directory accessible by the Docker container, such as <code>/home/node/trilium-data/[DIR IN DATA DIRECTORY]</code>.</p>
+<p>After configuring <code>config.ini</code>, restart Trilium and access the
+  hostname using "https".</p>
+<h2>Self-Signed Certificate</h2>
+<p>If you opt to use a self-signed certificate for your server instance,
+  note that the desktop instance will not trust it by default.</p>
+<p>To bypass this, disable certificate validation by setting the following
+  environment variable (for Linux):</p><pre><code class="language-text-x-trilium-auto">export NODE_TLS_REJECT_UNAUTHORIZED=0
+trilium</code></pre>
+<p>Trilium provides scripts to start in this mode, such as <code>trilium-no-cert-check.bat</code> for
+  Windows.</p>
+<p><strong>Warning</strong>: Disabling TLS certificate validation is insecure.
+  Proceed only if you fully understand the implications.</p>
\ No newline at end of file
diff --git a/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/Security/Protected Notes and Encryption.html b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/Security/Protected Notes and Encryption.html
new file mode 100644
index 0000000000..cdd405eb6d
--- /dev/null
+++ b/apps/server/src/assets/doc_notes/en/User Guide/User Guide/Installation & Setup/Security/Protected Notes and Encryption.html	
@@ -0,0 +1,276 @@
+<p>Trilium provides robust encryption capabilities through its Protected
+  Notes system, ensuring your sensitive information remains secure even if
+  your database is compromised.</p>
+<h2>Overview</h2>
+<p>Protected notes in Trilium use <strong>AES-128-CBC encryption</strong> with
+  scrypt-based key derivation to protect sensitive content. The encryption
+  is designed to be:</p>
+<ul>
+  <li><strong>Secure</strong>: Uses industry-standard AES encryption with strong
+    key derivation</li>
+  <li><strong>Selective</strong>: Only notes marked as protected are encrypted</li>
+  <li><strong>Session-based</strong>: Decrypted content remains accessible during
+    a protected session</li>
+  <li><strong>Zero-knowledge</strong>: The server never stores unencrypted protected
+    content</li>
+</ul>
+<h2>How Encryption Works</h2>
+<h3>Encryption Algorithm</h3>
+<ul>
+  <li><strong>Cipher</strong>: AES-128-CBC (Advanced Encryption Standard in
+    Cipher Block Chaining mode)</li>
+  <li><strong>Key Derivation</strong>: Scrypt with configurable parameters (N=16384,
+    r=8, p=1)</li>
+  <li><strong>Initialization Vector</strong>: 16-byte random IV generated for
+    each encryption operation</li>
+  <li><strong>Integrity Protection</strong>: SHA-1 digest (first 4 bytes) prepended
+    to plaintext for tamper detection</li>
+</ul>
+<h3>Key Management</h3>
+<ol>
+  <li><strong>Master Password</strong>: User-provided password used for key
+    derivation</li>
+  <li><strong>Data Key</strong>: 32-byte random key generated during setup,
+    encrypted with password-derived key</li>
+  <li><strong>Password-Derived Key</strong>: Generated using scrypt from master
+    password and salt</li>
+  <li><strong>Session Key</strong>: Data key loaded into memory during protected
+    session</li>
+</ol>
+<h3>Encryption Process</h3><pre><code class="language-text-x-trilium-auto">1. Generate random 16-byte IV
+2. Compute SHA-1 digest of plaintext (use first 4 bytes)
+3. Prepend digest to plaintext
+4. Encrypt (digest + plaintext) using AES-128-CBC
+5. Prepend IV to encrypted data
+6. Encode result as Base64</code></pre>
+<h3>Decryption Process</h3><pre><code class="language-text-x-trilium-auto">1. Decode Base64 ciphertext
+2. Extract IV (first 16 bytes) and encrypted data
+3. Decrypt using AES-128-CBC with data key and IV
+4. Extract digest (first 4 bytes) and plaintext
+5. Verify integrity by comparing computed vs. stored digest
+6. Return plaintext if verification succeeds</code></pre>
+<h2>Setting Up Protected Notes</h2>
+<h3>Initial Setup</h3>
+<ol>
+  <li><strong>Set Master Password</strong>: Configure a strong password during
+    initial setup</li>
+  <li><strong>Create Protected Note</strong>: Right-click a note and select
+    "Toggle Protected Status"</li>
+  <li><strong>Enter Protected Session</strong>: Click the shield icon or use
+    Ctrl+Shift+P</li>
+</ol>
+<h3>Password Requirements</h3>
+<ul>
+  <li><strong>Minimum Length</strong>: 8 characters (recommended: 12+ characters)</li>
+  <li><strong>Complexity</strong>: Use a mix of uppercase, lowercase, numbers,
+    and symbols</li>
+  <li><strong>Uniqueness</strong>: Don't reuse passwords from other services</li>
+  <li><strong>Storage</strong>: Consider using a password manager for complex
+    passwords</li>
+</ul>
+<h3>Best Practices</h3>
+<ol>
+  <li><strong>Strong Passwords</strong>: Use passphrases or generated passwords</li>
+  <li><strong>Regular Changes</strong>: Update passwords periodically</li>
+  <li><strong>Secure Storage</strong>: Store password recovery information securely</li>
+  <li><strong>Backup Strategy</strong>: Ensure encrypted backups are properly
+    secured</li>
+</ol>
+<h2>Protected Sessions</h2>
+<h3>Session Management</h3>
+<ul>
+  <li><strong>Automatic Timeout</strong>: Sessions expire after configurable
+    timeout (default: 10 minutes)</li>
+  <li><strong>Manual Control</strong>: Explicitly enter/exit protected sessions</li>
+  <li><strong>Activity Tracking</strong>: Session timeout resets with each protected
+    note access</li>
+  <li><strong>Multi-client</strong>: Each client maintains its own protected
+    session</li>
+</ul>
+<h3>Session Lifecycle</h3>
+<ol>
+  <li><strong>Enter Session</strong>: User enters master password</li>
+  <li><strong>Key Derivation</strong>: System derives data key from password</li>
+  <li><strong>Session Active</strong>: Protected content accessible in plaintext</li>
+  <li><strong>Timeout/Logout</strong>: Data key removed from memory</li>
+  <li><strong>Protection Restored</strong>: Content returns to encrypted state</li>
+</ol>
+<h3>Configuration Options</h3>
+<p>Access via Options → Protected Session:</p>
+<ul>
+  <li><strong>Session Timeout</strong>: Duration before automatic logout (seconds)</li>
+  <li><strong>Password Verification</strong>: Enable/disable password strength
+    requirements</li>
+  <li><strong>Recovery Options</strong>: Configure password recovery mechanisms</li>
+</ul>
+<h2>Performance Considerations</h2>
+<h3>Encryption Overhead</h3>
+<ul>
+  <li><strong>CPU Impact</strong>: Scrypt key derivation is intentionally CPU-intensive</li>
+  <li><strong>Memory Usage</strong>: Minimal additional memory for encrypted
+    content</li>
+  <li><strong>Storage Size</strong>: Encrypted content is slightly larger due
+    to Base64 encoding</li>
+  <li><strong>Network Transfer</strong>: Encrypted notes transfer as Base64
+    strings</li>
+</ul>
+<h3>Optimization Tips</h3>
+<ol>
+  <li><strong>Selective Protection</strong>: Only encrypt truly sensitive notes</li>
+  <li><strong>Session Management</strong>: Keep sessions active during intensive
+    work</li>
+  <li><strong>Hardware Acceleration</strong>: Modern CPUs provide AES acceleration</li>
+  <li><strong>Batch Operations</strong>: Group protected note operations when
+    possible</li>
+</ol>
+<h2>Security Considerations</h2>
+<h3>Threat Model</h3>
+<p><strong>Protected Against</strong>:</p>
+<ul>
+  <li>Database theft or unauthorized access</li>
+  <li>Network interception (data at rest)</li>
+  <li>Server-side data breaches</li>
+  <li>Backup file compromise</li>
+</ul>
+<p><strong>Not Protected Against</strong>:</p>
+<ul>
+  <li>Keyloggers or screen capture malware</li>
+  <li>Physical access to unlocked device</li>
+  <li>Memory dumps during active session</li>
+  <li>Social engineering attacks</li>
+</ul>
+<h3>Limitations</h3>
+<ol>
+  <li><strong>Note Titles</strong>: Currently encrypted, may leak structural
+    information</li>
+  <li><strong>Metadata</strong>: Creation dates, modification times remain unencrypted</li>
+  <li><strong>Search Indexing</strong>: Protected notes excluded from full-text
+    search</li>
+  <li><strong>Sync Conflicts</strong>: May be harder to resolve for protected
+    content</li>
+</ol>
+<h2>Troubleshooting</h2>
+<h3>Common Issues</h3>
+<h4>"Could not decrypt string" Error</h4>
+<p><strong>Causes</strong>:</p>
+<ul>
+  <li>Incorrect password entered</li>
+  <li>Corrupted encrypted data</li>
+  <li>Database migration issues</li>
+</ul>
+<p><strong>Solutions</strong>:</p>
+<ol>
+  <li>Verify password spelling and case sensitivity</li>
+  <li>Check for active protected session</li>
+  <li>Restart application and retry</li>
+  <li>Restore from backup if corruption suspected</li>
+</ol>
+<h4>Protected Session Won't Start</h4>
+<p><strong>Causes</strong>:</p>
+<ul>
+  <li>Password verification hash mismatch</li>
+  <li>Missing encryption salt</li>
+  <li>Database schema issues</li>
+</ul>
+<p><strong>Solutions</strong>:</p>
+<ol>
+  <li>Check error logs for specific error messages</li>
+  <li>Verify database integrity</li>
+  <li>Restore from known good backup</li>
+  <li>Contact support with error details</li>
+</ol>
+<h4>Performance Issues</h4>
+<p><strong>Symptoms</strong>:</p>
+<ul>
+  <li>Slow password verification</li>
+  <li>Long delays entering protected session</li>
+  <li>High CPU usage during encryption</li>
+</ul>
+<p><strong>Solutions</strong>:</p>
+<ol>
+  <li>Reduce scrypt parameters (advanced users only)</li>
+  <li>Limit number of protected notes</li>
+  <li>Upgrade hardware (more RAM/faster CPU)</li>
+  <li>Close other resource-intensive applications</li>
+</ol>
+<h3>Recovery Procedures</h3>
+<h4>Password Recovery</h4>
+<p>If you forget your master password:</p>
+<ol>
+  <li><strong>No Built-in Recovery</strong>: Trilium cannot recover forgotten
+    passwords</li>
+  <li><strong>Backup Restoration</strong>: Restore from backup with known password</li>
+  <li><strong>Data Export</strong>: Export unprotected content before password
+    change</li>
+  <li><strong>Complete Reset</strong>: Last resort - lose all protected content</li>
+</ol>
+<h4>Data Recovery</h4>
+<p>For corrupted protected notes:</p>
+<ol>
+  <li><strong>Verify Backup</strong>: Check if backups contain uncorrupted data</li>
+  <li><strong>Export/Import</strong>: Try exporting and re-importing the note</li>
+  <li><strong>Database Repair</strong>: Use database repair tools if available</li>
+  <li><strong>Professional Help</strong>: Contact data recovery services for
+    critical data</li>
+</ol>
+<h2>Advanced Configuration</h2>
+<h3>Custom Encryption Parameters</h3>
+<p><strong>Warning</strong>: Modifying encryption parameters requires advanced
+  knowledge and may break compatibility.</p>
+<p>For expert users, encryption parameters can be modified in the source
+  code:</p><pre><code class="language-application-typescript">// In my_scrypt.ts
+const scryptParams = {
+    N: 16384,  // CPU/memory cost parameter
+    r: 8,      // Block size parameter  
+    p: 1       // Parallelization parameter
+};</code></pre>
+<h3>Integration with External Tools</h3>
+<p>Protected notes can be accessed programmatically:</p><pre><code class="language-application-javascript-env-backend">// Backend script example
+const protectedNote = api.getNote('noteId');
+if (protectedNote.isProtected) {
+    // Content will be encrypted unless in protected session
+    const content = protectedNote.getContent();
+}</code></pre>
+<h2>Compliance and Auditing</h2>
+<h3>Encryption Standards</h3>
+<ul>
+  <li><strong>Algorithm</strong>: AES-128-CBC (FIPS 140-2 approved)</li>
+  <li><strong>Key Derivation</strong>: Scrypt (RFC 7914)</li>
+  <li><strong>Random Generation</strong>: Node.js crypto.randomBytes() (OS entropy)</li>
+</ul>
+<h3>Audit Trail</h3>
+<ul>
+  <li>Protected session entry/exit events logged</li>
+  <li>Encryption/decryption operations tracked</li>
+  <li>Password verification attempts recorded</li>
+  <li>Key derivation operations monitored</li>
+</ul>
+<h3>Compliance Considerations</h3>
+<ul>
+  <li><strong>GDPR</strong>: Encryption provides data protection safeguards</li>
+  <li><strong>HIPAA</strong>: AES encryption meets security requirements</li>
+  <li><strong>SOX</strong>: Audit trails support compliance requirements</li>
+  <li><strong>PCI DSS</strong>: Strong encryption protects sensitive data</li>
+</ul>
+<h2>Migration and Backup</h2>
+<h3>Backup Strategies</h3>
+<ol>
+  <li><strong>Encrypted Backups</strong>: Regular backups preserve encrypted
+    state</li>
+  <li><strong>Unencrypted Exports</strong>: Export protected content during
+    session</li>
+  <li><strong>Key Management</strong>: Securely store password recovery information</li>
+  <li><strong>Testing</strong>: Regularly test backup restoration procedures</li>
+</ol>
+<h3>Migration Procedures</h3>
+<p>When moving to new installation:</p>
+<ol>
+  <li><strong>Export Data</strong>: Export all notes including protected content</li>
+  <li><strong>Backup Database</strong>: Create complete database backup</li>
+  <li><strong>Transfer Files</strong>: Move exported files to new installation</li>
+  <li><strong>Import Data</strong>: Import using same master password</li>
+  <li><strong>Verify</strong>: Confirm all protected content accessible</li>
+</ol>
+<p>Remember: The security of protected notes ultimately depends on choosing
+  a strong master password and following security best practices for your
+  overall system.</p>
\ No newline at end of file
diff --git a/docs/Developer Guide/!!!meta.json b/docs/Developer Guide/!!!meta.json
index aee04e341c..8cd2e71bf3 100644
--- a/docs/Developer Guide/!!!meta.json	
+++ b/docs/Developer Guide/!!!meta.json	
@@ -1,6 +1,6 @@
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+                                    "value": "eDWmn0B42ALV",
+                                    "isInheritable": false,
+                                    "position": 10
+                                }
+                            ],
+                            "format": "markdown",
+                            "dataFileName": "Internal API Reference.md",
+                            "attachments": []
+                        },
+                        {
+                            "isClone": false,
+                            "noteId": "RqCs8jiZGB1g",
+                            "notePath": [
+                                "jdjRLhLV3TtI",
+                                "TfoaMQkD75JI",
+                                "RqCs8jiZGB1g"
+                            ],
+                            "title": "Script API Cookbook",
+                            "notePosition": 40,
+                            "prefix": null,
+                            "isExpanded": false,
+                            "type": "text",
+                            "mime": "text/markdown",
+                            "attributes": [],
+                            "format": "markdown",
+                            "dataFileName": "Script API Cookbook.md",
+                            "attachments": []
+                        },
+                        {
+                            "isClone": false,
+                            "noteId": "eDWmn0B42ALV",
+                            "notePath": [
+                                "jdjRLhLV3TtI",
+                                "TfoaMQkD75JI",
+                                "eDWmn0B42ALV"
+                            ],
+                            "title": "WebSocket API",
+                            "notePosition": 50,
+                            "prefix": null,
+                            "isExpanded": false,
+                            "type": "text",
+                            "mime": "text/markdown",
+                            "attributes": [
+                                {
+                                    "type": "relation",
+                                    "name": "internalLink",
+                                    "value": "4sxya4t9P8AA",
+                                    "isInheritable": false,
+                                    "position": 10
+                                },
+                                {
+                                    "type": "relation",
+                                    "name": "internalLink",
+                                    "value": "oB5PbEHAzG9t",
+                                    "isInheritable": false,
+                                    "position": 10
+                                },
+                                {
+                                    "type": "relation",
+                                    "name": "internalLink",
+                                    "value": "tvrq35NqaWce",
+                                    "isInheritable": false,
+                                    "position": 10
+                                }
+                            ],
+                            "format": "markdown",
+                            "dataFileName": "WebSocket API.md",
+                            "attachments": []
+                        }
+                    ]
+                },
+                {
+                    "isClone": false,
+                    "noteId": "bPMgREWrBYg4",
+                    "notePath": [
+                        "jdjRLhLV3TtI",
+                        "bPMgREWrBYg4"
+                    ],
+                    "title": "Plugin Development",
+                    "notePosition": 100,
+                    "prefix": null,
+                    "isExpanded": false,
+                    "type": "text",
+                    "mime": "text/html",
+                    "attributes": [],
+                    "format": "markdown",
+                    "attachments": [],
+                    "dirFileName": "Plugin Development",
+                    "children": [
+                        {
+                            "isClone": false,
+                            "noteId": "bZEM5pnOzTVt",
+                            "notePath": [
+                                "jdjRLhLV3TtI",
+                                "bPMgREWrBYg4",
+                                "bZEM5pnOzTVt"
+                            ],
+                            "title": "Backend Script Development",
+                            "notePosition": 10,
+                            "prefix": null,
+                            "isExpanded": false,
+                            "type": "text",
+                            "mime": "text/markdown",
+                            "attributes": [],
+                            "format": "markdown",
+                            "dataFileName": "Backend Script Development.md",
+                            "attachments": []
+                        },
+                        {
+                            "isClone": false,
+                            "noteId": "fI5sL6zd3n9K",
+                            "notePath": [
+                                "jdjRLhLV3TtI",
+                                "bPMgREWrBYg4",
+                                "fI5sL6zd3n9K"
+                            ],
+                            "title": "Custom Note Type Development",
+                            "notePosition": 20,
+                            "prefix": null,
+                            "isExpanded": false,
+                            "type": "text",
+                            "mime": "text/markdown",
+                            "attributes": [],
+                            "format": "markdown",
+                            "dataFileName": "Custom Note Type Development.md",
+                            "attachments": []
+                        },
+                        {
+                            "isClone": false,
+                            "noteId": "gRXGO3vGuey9",
+                            "notePath": [
+                                "jdjRLhLV3TtI",
+                                "bPMgREWrBYg4",
+                                "gRXGO3vGuey9"
+                            ],
+                            "title": "Custom Widget Development Guide",
+                            "notePosition": 30,
+                            "prefix": null,
+                            "isExpanded": false,
+                            "type": "text",
+                            "mime": "text/markdown",
+                            "attributes": [],
+                            "format": "markdown",
+                            "dataFileName": "Custom Widget Development Guid.md",
+                            "attachments": []
+                        },
+                        {
+                            "isClone": false,
+                            "noteId": "3ZeRzd0e7Btc",
+                            "notePath": [
+                                "jdjRLhLV3TtI",
+                                "bPMgREWrBYg4",
+                                "3ZeRzd0e7Btc"
+                            ],
+                            "title": "Frontend Script Development",
+                            "notePosition": 40,
+                            "prefix": null,
+                            "isExpanded": false,
+                            "type": "text",
+                            "mime": "text/markdown",
+                            "attributes": [],
+                            "format": "markdown",
+                            "dataFileName": "Frontend Script Development.md",
+                            "attachments": []
+                        },
+                        {
+                            "isClone": false,
+                            "noteId": "dZnOJuAVLKxt",
+                            "notePath": [
+                                "jdjRLhLV3TtI",
+                                "bPMgREWrBYg4",
+                                "dZnOJuAVLKxt"
+                            ],
+                            "title": "Theme Development Guide",
+                            "notePosition": 50,
+                            "prefix": null,
+                            "isExpanded": false,
+                            "type": "text",
+                            "mime": "text/markdown",
+                            "attributes": [],
+                            "format": "markdown",
+                            "dataFileName": "Theme Development Guide.md",
+                            "attachments": []
+                        }
+                    ]
+                },
                 {
                     "isClone": false,
                     "noteId": "T2W7WCZrYZBU",
@@ -27,7 +524,7 @@
                         "T2W7WCZrYZBU"
                     ],
                     "title": "Environment Setup",
-                    "notePosition": 50,
+                    "notePosition": 130,
                     "prefix": null,
                     "isExpanded": false,
                     "type": "text",
@@ -53,7 +550,7 @@
                         "cxfTSHIUQtt2"
                     ],
                     "title": "Project Structure",
-                    "notePosition": 190,
+                    "notePosition": 270,
                     "prefix": null,
                     "isExpanded": false,
                     "type": "text",
@@ -139,7 +636,7 @@
                         "YjerxU7Aii8X"
                     ],
                     "title": "Troubleshooting",
-                    "notePosition": 200,
+                    "notePosition": 280,
                     "prefix": null,
                     "isExpanded": false,
                     "type": "text",
@@ -186,7 +683,7 @@
                         "wbVIolLKDhe2"
                     ],
                     "title": "Development and architecture",
-                    "notePosition": 220,
+                    "notePosition": 300,
                     "prefix": null,
                     "isExpanded": false,
                     "type": "text",
@@ -1728,7 +2225,7 @@
                         "VHhyVRYK43gI"
                     ],
                     "title": "Building and deployment",
-                    "notePosition": 230,
+                    "notePosition": 310,
                     "prefix": null,
                     "isExpanded": false,
                     "type": "text",
@@ -1767,7 +2264,7 @@
                         "ibAPHul7Efvr"
                     ],
                     "title": "Old documentation",
-                    "notePosition": 260,
+                    "notePosition": 340,
                     "prefix": null,
                     "isExpanded": false,
                     "type": "text",
diff --git a/docs/Developer Guide/Developer Guide/API Documentation/API Client Libraries.md b/docs/Developer Guide/Developer Guide/API Documentation/API Client Libraries.md
new file mode 100644
index 0000000000..b331da0991
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/API Documentation/API Client Libraries.md	
@@ -0,0 +1,2277 @@
+# API Client Libraries
+## Table of Contents
+
+1.  [Overview](#overview)
+2.  [JavaScript/TypeScript Client](#javascripttypescript-client)
+3.  [Python Client - trilium-py](#python-client---trilium-py)
+4.  [Go Client](#go-client)
+5.  [Ruby Client](#ruby-client)
+6.  [PHP Client](#php-client)
+7.  [C# Client](#c-client)
+8.  [Rust Client](#rust-client)
+9.  [REST Client Best Practices](#rest-client-best-practices)
+10.  [Error Handling Patterns](#error-handling-patterns)
+11.  [Retry Strategies](#retry-strategies)
+12.  [Testing Client Libraries](#testing-client-libraries)
+
+## Overview
+
+This guide provides comprehensive examples of Trilium API client libraries in various programming languages. Each implementation follows best practices for that language while maintaining consistent functionality across all clients.
+
+### Common Features
+
+All client libraries should implement:
+
+*   Token-based authentication
+*   CRUD operations for notes, attributes, branches, and attachments
+*   Search functionality
+*   Error handling with retry logic
+*   Connection pooling
+*   Request/response logging (optional)
+*   Rate limiting support
+
+## JavaScript/TypeScript Client
+
+### Full-Featured TypeScript Implementation
+
+```typescript
+// trilium-client.ts
+
+import axios, { AxiosInstance, AxiosRequestConfig, AxiosError } from 'axios';
+
+// Types
+export interface Note {
+    noteId: string;
+    title: string;
+    type: string;
+    mime: string;
+    isProtected: boolean;
+    attributes?: Attribute[];
+    parentNoteIds?: string[];
+    childNoteIds?: string[];
+    dateCreated: string;
+    dateModified: string;
+    utcDateCreated: string;
+    utcDateModified: string;
+}
+
+export interface CreateNoteParams {
+    parentNoteId: string;
+    title: string;
+    type: string;
+    content: string;
+    notePosition?: number;
+    prefix?: string;
+    isExpanded?: boolean;
+    noteId?: string;
+    branchId?: string;
+}
+
+export interface Attribute {
+    attributeId: string;
+    noteId: string;
+    type: 'label' | 'relation';
+    name: string;
+    value: string;
+    position?: number;
+    isInheritable?: boolean;
+}
+
+export interface Branch {
+    branchId: string;
+    noteId: string;
+    parentNoteId: string;
+    prefix?: string;
+    notePosition?: number;
+    isExpanded?: boolean;
+}
+
+export interface Attachment {
+    attachmentId: string;
+    ownerId: string;
+    role: string;
+    mime: string;
+    title: string;
+    position?: number;
+    blobId?: string;
+    dateModified?: string;
+    utcDateModified?: string;
+}
+
+export interface SearchParams {
+    search: string;
+    fastSearch?: boolean;
+    includeArchivedNotes?: boolean;
+    ancestorNoteId?: string;
+    ancestorDepth?: string;
+    orderBy?: string;
+    orderDirection?: 'asc' | 'desc';
+    limit?: number;
+    debug?: boolean;
+}
+
+export interface SearchResponse {
+    results: Note[];
+    debugInfo?: any;
+}
+
+export interface AppInfo {
+    appVersion: string;
+    dbVersion: number;
+    syncVersion: number;
+    buildDate: string;
+    buildRevision: string;
+    dataDirectory: string;
+    clipperProtocolVersion: string;
+    utcDateTime: string;
+}
+
+export interface TriliumClientConfig {
+    baseUrl: string;
+    token: string;
+    timeout?: number;
+    retryAttempts?: number;
+    retryDelay?: number;
+    enableLogging?: boolean;
+}
+
+// Error classes
+export class TriliumError extends Error {
+    constructor(
+        message: string,
+        public statusCode?: number,
+        public code?: string,
+        public details?: any
+    ) {
+        super(message);
+        this.name = 'TriliumError';
+    }
+}
+
+export class TriliumConnectionError extends TriliumError {
+    constructor(message: string, details?: any) {
+        super(message, undefined, 'CONNECTION_ERROR', details);
+        this.name = 'TriliumConnectionError';
+    }
+}
+
+export class TriliumAuthError extends TriliumError {
+    constructor(message: string, details?: any) {
+        super(message, 401, 'AUTH_ERROR', details);
+        this.name = 'TriliumAuthError';
+    }
+}
+
+// Main client class
+export class TriliumClient {
+    private client: AxiosInstance;
+    private config: Required<TriliumClientConfig>;
+    
+    constructor(config: TriliumClientConfig) {
+        this.config = {
+            timeout: 30000,
+            retryAttempts: 3,
+            retryDelay: 1000,
+            enableLogging: false,
+            ...config
+        };
+        
+        this.client = axios.create({
+            baseURL: this.config.baseUrl,
+            timeout: this.config.timeout,
+            headers: {
+                'Authorization': this.config.token,
+                'Content-Type': 'application/json'
+            }
+        });
+        
+        this.setupInterceptors();
+    }
+    
+    private setupInterceptors(): void {
+        // Request interceptor for logging
+        this.client.interceptors.request.use(
+            (config) => {
+                if (this.config.enableLogging) {
+                    console.log(`[Trilium] ${config.method?.toUpperCase()} ${config.url}`);
+                }
+                return config;
+            },
+            (error) => Promise.reject(error)
+        );
+        
+        // Response interceptor for error handling and retry
+        this.client.interceptors.response.use(
+            (response) => response,
+            async (error: AxiosError) => {
+                const originalRequest = error.config as AxiosRequestConfig & { _retryCount?: number };
+                
+                if (!originalRequest) {
+                    throw new TriliumConnectionError('No request config available');
+                }
+                
+                // Initialize retry count
+                if (!originalRequest._retryCount) {
+                    originalRequest._retryCount = 0;
+                }
+                
+                // Handle different error types
+                if (error.response) {
+                    // Server responded with error
+                    if (error.response.status === 401) {
+                        throw new TriliumAuthError('Authentication failed', error.response.data);
+                    }
+                    
+                    // Don't retry client errors (4xx)
+                    if (error.response.status >= 400 && error.response.status < 500) {
+                        throw new TriliumError(
+                            error.response.data?.message || error.message,
+                            error.response.status,
+                            error.response.data?.code,
+                            error.response.data
+                        );
+                    }
+                } else if (error.request) {
+                    // No response received
+                    if (originalRequest._retryCount < this.config.retryAttempts) {
+                        originalRequest._retryCount++;
+                        
+                        if (this.config.enableLogging) {
+                            console.log(`[Trilium] Retry attempt ${originalRequest._retryCount}/${this.config.retryAttempts}`);
+                        }
+                        
+                        // Wait before retry
+                        await this.sleep(this.config.retryDelay * originalRequest._retryCount);
+                        
+                        return this.client(originalRequest);
+                    }
+                    
+                    throw new TriliumConnectionError('No response from server', error.request);
+                }
+                
+                throw new TriliumError(error.message);
+            }
+        );
+    }
+    
+    private sleep(ms: number): Promise<void> {
+        return new Promise(resolve => setTimeout(resolve, ms));
+    }
+    
+    // Note operations
+    async createNote(params: CreateNoteParams): Promise<{ note: Note; branch: Branch }> {
+        const response = await this.client.post<{ note: Note; branch: Branch }>('/create-note', params);
+        return response.data;
+    }
+    
+    async getNote(noteId: string): Promise<Note> {
+        const response = await this.client.get<Note>(`/notes/${noteId}`);
+        return response.data;
+    }
+    
+    async updateNote(noteId: string, updates: Partial<Note>): Promise<Note> {
+        const response = await this.client.patch<Note>(`/notes/${noteId}`, updates);
+        return response.data;
+    }
+    
+    async deleteNote(noteId: string): Promise<void> {
+        await this.client.delete(`/notes/${noteId}`);
+    }
+    
+    async getNoteContent(noteId: string): Promise<string> {
+        const response = await this.client.get(`/notes/${noteId}/content`, {
+            responseType: 'text'
+        });
+        return response.data;
+    }
+    
+    async updateNoteContent(noteId: string, content: string): Promise<void> {
+        await this.client.put(`/notes/${noteId}/content`, content, {
+            headers: { 'Content-Type': 'text/plain' }
+        });
+    }
+    
+    // Search
+    async searchNotes(params: SearchParams): Promise<SearchResponse> {
+        const response = await this.client.get<SearchResponse>('/notes', { params });
+        return response.data;
+    }
+    
+    // Attributes
+    async createAttribute(attribute: Omit<Attribute, 'attributeId'>): Promise<Attribute> {
+        const response = await this.client.post<Attribute>('/attributes', attribute);
+        return response.data;
+    }
+    
+    async updateAttribute(attributeId: string, updates: Partial<Attribute>): Promise<Attribute> {
+        const response = await this.client.patch<Attribute>(`/attributes/${attributeId}`, updates);
+        return response.data;
+    }
+    
+    async deleteAttribute(attributeId: string): Promise<void> {
+        await this.client.delete(`/attributes/${attributeId}`);
+    }
+    
+    // Branches
+    async createBranch(branch: Omit<Branch, 'branchId'>): Promise<Branch> {
+        const response = await this.client.post<Branch>('/branches', branch);
+        return response.data;
+    }
+    
+    async updateBranch(branchId: string, updates: Partial<Branch>): Promise<Branch> {
+        const response = await this.client.patch<Branch>(`/branches/${branchId}`, updates);
+        return response.data;
+    }
+    
+    async deleteBranch(branchId: string): Promise<void> {
+        await this.client.delete(`/branches/${branchId}`);
+    }
+    
+    // Attachments
+    async createAttachment(attachment: {
+        ownerId: string;
+        role: string;
+        mime: string;
+        title: string;
+        content: string;
+        position?: number;
+    }): Promise<Attachment> {
+        const response = await this.client.post<Attachment>('/attachments', attachment);
+        return response.data;
+    }
+    
+    async getAttachment(attachmentId: string): Promise<Attachment> {
+        const response = await this.client.get<Attachment>(`/attachments/${attachmentId}`);
+        return response.data;
+    }
+    
+    async getAttachmentContent(attachmentId: string): Promise<ArrayBuffer> {
+        const response = await this.client.get(`/attachments/${attachmentId}/content`, {
+            responseType: 'arraybuffer'
+        });
+        return response.data;
+    }
+    
+    async deleteAttachment(attachmentId: string): Promise<void> {
+        await this.client.delete(`/attachments/${attachmentId}`);
+    }
+    
+    // Special notes
+    async getInboxNote(date: string): Promise<Note> {
+        const response = await this.client.get<Note>(`/inbox/${date}`);
+        return response.data;
+    }
+    
+    async getDayNote(date: string): Promise<Note> {
+        const response = await this.client.get<Note>(`/calendar/days/${date}`);
+        return response.data;
+    }
+    
+    async getWeekNote(date: string): Promise<Note> {
+        const response = await this.client.get<Note>(`/calendar/weeks/${date}`);
+        return response.data;
+    }
+    
+    async getMonthNote(month: string): Promise<Note> {
+        const response = await this.client.get<Note>(`/calendar/months/${month}`);
+        return response.data;
+    }
+    
+    async getYearNote(year: string): Promise<Note> {
+        const response = await this.client.get<Note>(`/calendar/years/${year}`);
+        return response.data;
+    }
+    
+    // Utility
+    async getAppInfo(): Promise<AppInfo> {
+        const response = await this.client.get<AppInfo>('/app-info');
+        return response.data;
+    }
+    
+    async createBackup(backupName: string): Promise<void> {
+        await this.client.put(`/backup/${backupName}`);
+    }
+    
+    async exportNotes(noteId: string, format: 'html' | 'markdown' = 'html'): Promise<ArrayBuffer> {
+        const response = await this.client.get(`/notes/${noteId}/export`, {
+            params: { format },
+            responseType: 'arraybuffer'
+        });
+        return response.data;
+    }
+}
+
+// Helper functions
+export function createClient(baseUrl: string, token: string, options?: Partial<TriliumClientConfig>): TriliumClient {
+    return new TriliumClient({
+        baseUrl,
+        token,
+        ...options
+    });
+}
+
+// Batch operations helper
+export class TriliumBatchClient extends TriliumClient {
+    async createMultipleNotes(notes: CreateNoteParams[]): Promise<Array<{ note: Note; branch: Branch }>> {
+        const results = [];
+        
+        for (const noteParams of notes) {
+            try {
+                const result = await this.createNote(noteParams);
+                results.push(result);
+            } catch (error) {
+                if (this.config.enableLogging) {
+                    console.error(`Failed to create note "${noteParams.title}":`, error);
+                }
+                throw error;
+            }
+        }
+        
+        return results;
+    }
+    
+    async searchAndUpdate(
+        searchQuery: string,
+        updateFn: (note: Note) => Partial<Note> | null
+    ): Promise<Note[]> {
+        const searchResults = await this.searchNotes({ search: searchQuery });
+        const updatedNotes = [];
+        
+        for (const note of searchResults.results) {
+            const updates = updateFn(note);
+            if (updates) {
+                const updated = await this.updateNote(note.noteId, updates);
+                updatedNotes.push(updated);
+            }
+        }
+        
+        return updatedNotes;
+    }
+}
+
+// Usage example
+async function example() {
+    const client = createClient('http://localhost:8080/etapi', 'your-token', {
+        enableLogging: true,
+        retryAttempts: 5
+    });
+    
+    try {
+        // Create a note
+        const { note } = await client.createNote({
+            parentNoteId: 'root',
+            title: 'Test Note',
+            type: 'text',
+            content: '<p>Hello, Trilium!</p>'
+        });
+        
+        console.log('Created note:', note.noteId);
+        
+        // Search for notes
+        const searchResults = await client.searchNotes({
+            search: '#todo',
+            limit: 10,
+            orderBy: 'dateModified',
+            orderDirection: 'desc'
+        });
+        
+        console.log(`Found ${searchResults.results.length} todo notes`);
+        
+        // Add a label
+        await client.createAttribute({
+            noteId: note.noteId,
+            type: 'label',
+            name: 'priority',
+            value: 'high'
+        });
+        
+    } catch (error) {
+        if (error instanceof TriliumAuthError) {
+            console.error('Authentication failed:', error.message);
+        } else if (error instanceof TriliumConnectionError) {
+            console.error('Connection error:', error.message);
+        } else if (error instanceof TriliumError) {
+            console.error(`API error (${error.statusCode}):`, error.message);
+        } else {
+            console.error('Unexpected error:', error);
+        }
+    }
+}
+```
+
+### Browser-Compatible JavaScript Client
+
+```javascript
+// trilium-browser-client.js
+
+class TriliumBrowserClient {
+    constructor(baseUrl, token) {
+        this.baseUrl = baseUrl.replace(/\/$/, '');
+        this.token = token;
+        this.headers = {
+            'Authorization': token,
+            'Content-Type': 'application/json'
+        };
+    }
+    
+    async request(endpoint, options = {}) {
+        const url = `${this.baseUrl}${endpoint}`;
+        const config = {
+            headers: { ...this.headers, ...options.headers },
+            ...options
+        };
+        
+        try {
+            const response = await fetch(url, config);
+            
+            if (!response.ok) {
+                const error = await response.json().catch(() => ({}));
+                throw new Error(error.message || `HTTP ${response.status}: ${response.statusText}`);
+            }
+            
+            if (response.status === 204) {
+                return null;
+            }
+            
+            const contentType = response.headers.get('content-type');
+            if (contentType && contentType.includes('application/json')) {
+                return response.json();
+            }
+            
+            return response.text();
+        } catch (error) {
+            console.error(`Request failed: ${endpoint}`, error);
+            throw error;
+        }
+    }
+    
+    // Notes
+    async createNote(parentNoteId, title, content, type = 'text') {
+        return this.request('/create-note', {
+            method: 'POST',
+            body: JSON.stringify({
+                parentNoteId,
+                title,
+                type,
+                content
+            })
+        });
+    }
+    
+    async getNote(noteId) {
+        return this.request(`/notes/${noteId}`);
+    }
+    
+    async updateNote(noteId, updates) {
+        return this.request(`/notes/${noteId}`, {
+            method: 'PATCH',
+            body: JSON.stringify(updates)
+        });
+    }
+    
+    async deleteNote(noteId) {
+        return this.request(`/notes/${noteId}`, {
+            method: 'DELETE'
+        });
+    }
+    
+    async getNoteContent(noteId) {
+        return this.request(`/notes/${noteId}/content`);
+    }
+    
+    async updateNoteContent(noteId, content) {
+        return this.request(`/notes/${noteId}/content`, {
+            method: 'PUT',
+            headers: { 'Content-Type': 'text/plain' },
+            body: content
+        });
+    }
+    
+    // Search
+    async searchNotes(query, options = {}) {
+        const params = new URLSearchParams({
+            search: query,
+            ...options
+        });
+        
+        return this.request(`/notes?${params}`);
+    }
+    
+    // Attributes
+    async addLabel(noteId, name, value = '') {
+        return this.request('/attributes', {
+            method: 'POST',
+            body: JSON.stringify({
+                noteId,
+                type: 'label',
+                name,
+                value
+            })
+        });
+    }
+    
+    async addRelation(noteId, name, targetNoteId) {
+        return this.request('/attributes', {
+            method: 'POST',
+            body: JSON.stringify({
+                noteId,
+                type: 'relation',
+                name,
+                value: targetNoteId
+            })
+        });
+    }
+    
+    // Special notes
+    async getTodayNote() {
+        const today = new Date().toISOString().split('T')[0];
+        return this.request(`/calendar/days/${today}`);
+    }
+    
+    async getInbox() {
+        const today = new Date().toISOString().split('T')[0];
+        return this.request(`/inbox/${today}`);
+    }
+}
+
+// Usage in browser
+const trilium = new TriliumBrowserClient('http://localhost:8080/etapi', 'your-token');
+
+// Create a quick note
+async function createQuickNote(title, content) {
+    try {
+        const inbox = await trilium.getInbox();
+        const result = await trilium.createNote(inbox.noteId, title, content);
+        console.log('Note created:', result.note.noteId);
+        return result;
+    } catch (error) {
+        console.error('Failed to create note:', error);
+    }
+}
+```
+
+## Python Client - trilium-py
+
+### Installation
+
+```sh
+pip install trilium-py
+```
+
+### Complete Python Implementation
+
+```python
+# trilium_client.py
+
+import requests
+from typing import Optional, Dict, List, Any, Union
+from datetime import datetime, date
+from dataclasses import dataclass, asdict
+from enum import Enum
+import time
+import logging
+from urllib.parse import urljoin
+import json
+import base64
+
+# Set up logging
+logger = logging.getLogger(__name__)
+
+# Enums
+class NoteType(Enum):
+    TEXT = "text"
+    CODE = "code"
+    FILE = "file"
+    IMAGE = "image"
+    SEARCH = "search"
+    BOOK = "book"
+    RELATION_MAP = "relationMap"
+    RENDER = "render"
+
+class AttributeType(Enum):
+    LABEL = "label"
+    RELATION = "relation"
+
+# Data classes
+@dataclass
+class Note:
+    noteId: str
+    title: str
+    type: str
+    mime: Optional[str] = None
+    isProtected: bool = False
+    dateCreated: Optional[str] = None
+    dateModified: Optional[str] = None
+    utcDateCreated: Optional[str] = None
+    utcDateModified: Optional[str] = None
+    parentNoteIds: Optional[List[str]] = None
+    childNoteIds: Optional[List[str]] = None
+    attributes: Optional[List[Dict]] = None
+
+@dataclass
+class CreateNoteRequest:
+    parentNoteId: str
+    title: str
+    type: str
+    content: str
+    notePosition: Optional[int] = None
+    prefix: Optional[str] = None
+    isExpanded: Optional[bool] = None
+    noteId: Optional[str] = None
+    branchId: Optional[str] = None
+
+@dataclass
+class Attribute:
+    noteId: str
+    type: str
+    name: str
+    value: str = ""
+    position: Optional[int] = None
+    isInheritable: bool = False
+    attributeId: Optional[str] = None
+
+@dataclass
+class Branch:
+    noteId: str
+    parentNoteId: str
+    prefix: Optional[str] = None
+    notePosition: Optional[int] = None
+    isExpanded: Optional[bool] = None
+    branchId: Optional[str] = None
+
+# Exceptions
+class TriliumError(Exception):
+    """Base exception for Trilium API errors"""
+    def __init__(self, message: str, status_code: Optional[int] = None, details: Optional[Dict] = None):
+        super().__init__(message)
+        self.status_code = status_code
+        self.details = details
+
+class TriliumAuthError(TriliumError):
+    """Authentication error"""
+    pass
+
+class TriliumNotFoundError(TriliumError):
+    """Resource not found error"""
+    pass
+
+class TriliumConnectionError(TriliumError):
+    """Connection error"""
+    pass
+
+# Main client class
+class TriliumClient:
+    """Python client for Trilium ETAPI"""
+    
+    def __init__(
+        self,
+        base_url: str,
+        token: str,
+        timeout: int = 30,
+        retry_attempts: int = 3,
+        retry_delay: float = 1.0,
+        verify_ssl: bool = True,
+        debug: bool = False
+    ):
+        self.base_url = base_url.rstrip('/')
+        self.token = token
+        self.timeout = timeout
+        self.retry_attempts = retry_attempts
+        self.retry_delay = retry_delay
+        self.verify_ssl = verify_ssl
+        self.debug = debug
+        
+        # Set up session
+        self.session = requests.Session()
+        self.session.headers.update({
+            'Authorization': token,
+            'Content-Type': 'application/json'
+        })
+        
+        # Configure logging
+        if debug:
+            logging.basicConfig(level=logging.DEBUG)
+        
+    def _request(
+        self,
+        method: str,
+        endpoint: str,
+        json_data: Optional[Dict] = None,
+        params: Optional[Dict] = None,
+        data: Optional[Union[str, bytes]] = None,
+        headers: Optional[Dict] = None,
+        **kwargs
+    ) -> Any:
+        """Make HTTP request with retry logic"""
+        url = urljoin(self.base_url, endpoint)
+        
+        # Merge headers
+        req_headers = self.session.headers.copy()
+        if headers:
+            req_headers.update(headers)
+        
+        # Retry logic
+        last_exception = None
+        for attempt in range(self.retry_attempts):
+            try:
+                if self.debug:
+                    logger.debug(f"[Attempt {attempt + 1}] {method} {url}")
+                
+                response = self.session.request(
+                    method=method,
+                    url=url,
+                    json=json_data,
+                    params=params,
+                    data=data,
+                    headers=req_headers,
+                    timeout=self.timeout,
+                    verify=self.verify_ssl,
+                    **kwargs
+                )
+                
+                # Handle different status codes
+                if response.status_code == 401:
+                    raise TriliumAuthError("Authentication failed", 401)
+                elif response.status_code == 404:
+                    raise TriliumNotFoundError("Resource not found", 404)
+                elif response.status_code >= 500:
+                    # Server error - retry
+                    if attempt < self.retry_attempts - 1:
+                        time.sleep(self.retry_delay * (attempt + 1))
+                        continue
+                    else:
+                        response.raise_for_status()
+                elif not response.ok:
+                    error_data = {}
+                    try:
+                        error_data = response.json()
+                    except:
+                        pass
+                    raise TriliumError(
+                        error_data.get('message', f"HTTP {response.status_code}"),
+                        response.status_code,
+                        error_data
+                    )
+                
+                # Parse response
+                if response.status_code == 204:
+                    return None
+                
+                content_type = response.headers.get('content-type', '')
+                if 'application/json' in content_type:
+                    return response.json()
+                elif 'text' in content_type:
+                    return response.text
+                else:
+                    return response.content
+                    
+            except requests.exceptions.ConnectionError as e:
+                last_exception = e
+                if attempt < self.retry_attempts - 1:
+                    logger.warning(f"Connection error, retrying in {self.retry_delay * (attempt + 1)}s...")
+                    time.sleep(self.retry_delay * (attempt + 1))
+                else:
+                    raise TriliumConnectionError(f"Connection failed after {self.retry_attempts} attempts") from e
+            except requests.exceptions.Timeout as e:
+                last_exception = e
+                if attempt < self.retry_attempts - 1:
+                    logger.warning(f"Request timeout, retrying...")
+                    time.sleep(self.retry_delay * (attempt + 1))
+                else:
+                    raise TriliumConnectionError("Request timeout") from e
+            except TriliumError:
+                raise
+            except Exception as e:
+                raise TriliumError(f"Unexpected error: {str(e)}") from e
+        
+        if last_exception:
+            raise TriliumConnectionError(f"Request failed after {self.retry_attempts} attempts") from last_exception
+    
+    # Note operations
+    def create_note(
+        self,
+        parent_note_id: str,
+        title: str,
+        content: str,
+        note_type: Union[str, NoteType] = NoteType.TEXT,
+        **kwargs
+    ) -> Dict[str, Any]:
+        """Create a new note"""
+        if isinstance(note_type, NoteType):
+            note_type = note_type.value
+        
+        data = {
+            'parentNoteId': parent_note_id,
+            'title': title,
+            'type': note_type,
+            'content': content,
+            **kwargs
+        }
+        
+        return self._request('POST', '/create-note', json_data=data)
+    
+    def get_note(self, note_id: str) -> Note:
+        """Get note by ID"""
+        data = self._request('GET', f'/notes/{note_id}')
+        return Note(**data)
+    
+    def update_note(self, note_id: str, **updates) -> Note:
+        """Update note properties"""
+        data = self._request('PATCH', f'/notes/{note_id}', json_data=updates)
+        return Note(**data)
+    
+    def delete_note(self, note_id: str) -> None:
+        """Delete a note"""
+        self._request('DELETE', f'/notes/{note_id}')
+    
+    def get_note_content(self, note_id: str) -> str:
+        """Get note content"""
+        return self._request('GET', f'/notes/{note_id}/content')
+    
+    def update_note_content(self, note_id: str, content: str) -> None:
+        """Update note content"""
+        self._request(
+            'PUT',
+            f'/notes/{note_id}/content',
+            data=content,
+            headers={'Content-Type': 'text/plain'}
+        )
+    
+    # Search
+    def search_notes(
+        self,
+        query: str,
+        fast_search: bool = False,
+        include_archived: bool = False,
+        ancestor_note_id: Optional[str] = None,
+        order_by: Optional[str] = None,
+        order_direction: str = 'asc',
+        limit: Optional[int] = None,
+        debug: bool = False
+    ) -> List[Note]:
+        """Search for notes"""
+        params = {
+            'search': query,
+            'fastSearch': fast_search,
+            'includeArchivedNotes': include_archived
+        }
+        
+        if ancestor_note_id:
+            params['ancestorNoteId'] = ancestor_note_id
+        if order_by:
+            params['orderBy'] = order_by
+            params['orderDirection'] = order_direction
+        if limit:
+            params['limit'] = limit
+        if debug:
+            params['debug'] = debug
+        
+        data = self._request('GET', '/notes', params=params)
+        return [Note(**note) for note in data.get('results', [])]
+    
+    # Attributes
+    def add_label(
+        self,
+        note_id: str,
+        name: str,
+        value: str = "",
+        inheritable: bool = False,
+        position: Optional[int] = None
+    ) -> Attribute:
+        """Add a label to a note"""
+        data = {
+            'noteId': note_id,
+            'type': 'label',
+            'name': name,
+            'value': value,
+            'isInheritable': inheritable
+        }
+        
+        if position is not None:
+            data['position'] = position
+        
+        result = self._request('POST', '/attributes', json_data=data)
+        return Attribute(**result)
+    
+    def add_relation(
+        self,
+        note_id: str,
+        name: str,
+        target_note_id: str,
+        inheritable: bool = False,
+        position: Optional[int] = None
+    ) -> Attribute:
+        """Add a relation to a note"""
+        data = {
+            'noteId': note_id,
+            'type': 'relation',
+            'name': name,
+            'value': target_note_id,
+            'isInheritable': inheritable
+        }
+        
+        if position is not None:
+            data['position'] = position
+        
+        result = self._request('POST', '/attributes', json_data=data)
+        return Attribute(**result)
+    
+    def update_attribute(self, attribute_id: str, **updates) -> Attribute:
+        """Update an attribute"""
+        result = self._request('PATCH', f'/attributes/{attribute_id}', json_data=updates)
+        return Attribute(**result)
+    
+    def delete_attribute(self, attribute_id: str) -> None:
+        """Delete an attribute"""
+        self._request('DELETE', f'/attributes/{attribute_id}')
+    
+    # Branches
+    def clone_note(
+        self,
+        note_id: str,
+        parent_note_id: str,
+        prefix: Optional[str] = None,
+        note_position: Optional[int] = None
+    ) -> Branch:
+        """Clone a note to another location"""
+        data = {
+            'noteId': note_id,
+            'parentNoteId': parent_note_id
+        }
+        
+        if prefix:
+            data['prefix'] = prefix
+        if note_position is not None:
+            data['notePosition'] = note_position
+        
+        result = self._request('POST', '/branches', json_data=data)
+        return Branch(**result)
+    
+    def update_branch(self, branch_id: str, **updates) -> Branch:
+        """Update a branch"""
+        result = self._request('PATCH', f'/branches/{branch_id}', json_data=updates)
+        return Branch(**result)
+    
+    def delete_branch(self, branch_id: str) -> None:
+        """Delete a branch"""
+        self._request('DELETE', f'/branches/{branch_id}')
+    
+    # Attachments
+    def upload_attachment(
+        self,
+        note_id: str,
+        file_path: str,
+        title: Optional[str] = None,
+        mime: Optional[str] = None,
+        position: Optional[int] = None
+    ) -> Dict[str, Any]:
+        """Upload a file as attachment"""
+        import mimetypes
+        import os
+        
+        if title is None:
+            title = os.path.basename(file_path)
+        
+        if mime is None:
+            mime = mimetypes.guess_type(file_path)[0] or 'application/octet-stream'
+        
+        with open(file_path, 'rb') as f:
+            content = base64.b64encode(f.read()).decode('utf-8')
+        
+        data = {
+            'ownerId': note_id,
+            'role': 'file',
+            'mime': mime,
+            'title': title,
+            'content': content
+        }
+        
+        if position is not None:
+            data['position'] = position
+        
+        return self._request('POST', '/attachments', json_data=data)
+    
+    def download_attachment(self, attachment_id: str, output_path: str) -> str:
+        """Download an attachment"""
+        content = self._request('GET', f'/attachments/{attachment_id}/content')
+        
+        with open(output_path, 'wb') as f:
+            if isinstance(content, bytes):
+                f.write(content)
+            else:
+                f.write(content.encode('utf-8'))
+        
+        return output_path
+    
+    # Special notes
+    def get_inbox(self, target_date: Optional[Union[str, date]] = None) -> Note:
+        """Get inbox note for a date"""
+        if target_date is None:
+            target_date = date.today()
+        elif isinstance(target_date, date):
+            target_date = target_date.strftime('%Y-%m-%d')
+        
+        data = self._request('GET', f'/inbox/{target_date}')
+        return Note(**data)
+    
+    def get_day_note(self, target_date: Optional[Union[str, date]] = None) -> Note:
+        """Get day note for a date"""
+        if target_date is None:
+            target_date = date.today()
+        elif isinstance(target_date, date):
+            target_date = target_date.strftime('%Y-%m-%d')
+        
+        data = self._request('GET', f'/calendar/days/{target_date}')
+        return Note(**data)
+    
+    def get_week_note(self, target_date: Optional[Union[str, date]] = None) -> Note:
+        """Get week note for a date"""
+        if target_date is None:
+            target_date = date.today()
+        elif isinstance(target_date, date):
+            target_date = target_date.strftime('%Y-%m-%d')
+        
+        data = self._request('GET', f'/calendar/weeks/{target_date}')
+        return Note(**data)
+    
+    def get_month_note(self, month: Optional[str] = None) -> Note:
+        """Get month note"""
+        if month is None:
+            month = date.today().strftime('%Y-%m')
+        
+        data = self._request('GET', f'/calendar/months/{month}')
+        return Note(**data)
+    
+    def get_year_note(self, year: Optional[Union[str, int]] = None) -> Note:
+        """Get year note"""
+        if year is None:
+            year = str(date.today().year)
+        elif isinstance(year, int):
+            year = str(year)
+        
+        data = self._request('GET', f'/calendar/years/{year}')
+        return Note(**data)
+    
+    # Utility
+    def get_app_info(self) -> Dict[str, Any]:
+        """Get application information"""
+        return self._request('GET', '/app-info')
+    
+    def create_backup(self, backup_name: str) -> None:
+        """Create a backup"""
+        self._request('PUT', f'/backup/{backup_name}')
+    
+    def export_notes(
+        self,
+        note_id: str,
+        output_file: str,
+        format: str = 'html'
+    ) -> str:
+        """Export notes to ZIP file"""
+        content = self._request(
+            'GET',
+            f'/notes/{note_id}/export',
+            params={'format': format}
+        )
+        
+        with open(output_file, 'wb') as f:
+            f.write(content)
+        
+        return output_file
+    
+    def create_note_revision(self, note_id: str) -> None:
+        """Create a revision for a note"""
+        self._request('POST', f'/notes/{note_id}/revision')
+    
+    def refresh_note_ordering(self, parent_note_id: str) -> None:
+        """Refresh note ordering"""
+        self._request('POST', f'/refresh-note-ordering/{parent_note_id}')
+
+# Helper class for batch operations
+class TriliumBatchClient(TriliumClient):
+    """Extended client with batch operations"""
+    
+    def create_notes_batch(
+        self,
+        notes: List[CreateNoteRequest],
+        delay: float = 0.1
+    ) -> List[Dict[str, Any]]:
+        """Create multiple notes with delay between requests"""
+        results = []
+        
+        for note_req in notes:
+            result = self.create_note(**asdict(note_req))
+            results.append(result)
+            time.sleep(delay)
+        
+        return results
+    
+    def add_labels_batch(
+        self,
+        note_id: str,
+        labels: Dict[str, str]
+    ) -> List[Attribute]:
+        """Add multiple labels to a note"""
+        results = []
+        
+        for name, value in labels.items():
+            attr = self.add_label(note_id, name, value)
+            results.append(attr)
+        
+        return results
+    
+    def search_and_tag(
+        self,
+        search_query: str,
+        tag_name: str,
+        tag_value: str = ""
+    ) -> List[str]:
+        """Search for notes and add a tag to all results"""
+        notes = self.search_notes(search_query)
+        tagged = []
+        
+        for note in notes:
+            self.add_label(note.noteId, tag_name, tag_value)
+            tagged.append(note.noteId)
+        
+        return tagged
+
+# Context manager for automatic connection handling
+class TriliumContext:
+    """Context manager for Trilium client"""
+    
+    def __init__(self, base_url: str, token: str, **kwargs):
+        self.base_url = base_url
+        self.token = token
+        self.kwargs = kwargs
+        self.client = None
+    
+    def __enter__(self) -> TriliumClient:
+        self.client = TriliumClient(self.base_url, self.token, **self.kwargs)
+        return self.client
+    
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        if self.client and hasattr(self.client, 'session'):
+            self.client.session.close()
+
+# Usage examples
+if __name__ == "__main__":
+    # Basic usage
+    client = TriliumClient(
+        base_url="http://localhost:8080/etapi",
+        token="your-token",
+        debug=True
+    )
+    
+    # Create a note
+    result = client.create_note(
+        parent_note_id="root",
+        title="Test Note",
+        content="<p>This is a test note</p>",
+        note_type=NoteType.TEXT
+    )
+    print(f"Created note: {result['note']['noteId']}")
+    
+    # Search notes
+    todo_notes = client.search_notes("#todo", limit=10)
+    for note in todo_notes:
+        print(f"- {note.title}")
+    
+    # Using context manager
+    with TriliumContext("http://localhost:8080/etapi", "your-token") as api:
+        inbox = api.get_inbox()
+        print(f"Inbox note ID: {inbox.noteId}")
+    
+    # Batch operations
+    batch_client = TriliumBatchClient(
+        base_url="http://localhost:8080/etapi",
+        token="your-token"
+    )
+    
+    # Tag all notes matching a search
+    tagged = batch_client.search_and_tag(
+        search_query="type:text",
+        tag_name="processed",
+        tag_value=datetime.now().isoformat()
+    )
+    print(f"Tagged {len(tagged)} notes")
+```
+
+## Go Client
+
+```go
+// trilium_client.go
+
+package trilium
+
+import (
+    "bytes"
+    "encoding/json"
+    "fmt"
+    "io"
+    "net/http"
+    "net/url"
+    "time"
+)
+
+// Note represents a Trilium note
+type Note struct {
+    NoteID          string      `json:"noteId"`
+    Title           string      `json:"title"`
+    Type            string      `json:"type"`
+    Mime            string      `json:"mime,omitempty"`
+    IsProtected     bool        `json:"isProtected"`
+    DateCreated     string      `json:"dateCreated,omitempty"`
+    DateModified    string      `json:"dateModified,omitempty"`
+    UTCDateCreated  string      `json:"utcDateCreated,omitempty"`
+    UTCDateModified string      `json:"utcDateModified,omitempty"`
+    Attributes      []Attribute `json:"attributes,omitempty"`
+    ParentNoteIDs   []string    `json:"parentNoteIds,omitempty"`
+    ChildNoteIDs    []string    `json:"childNoteIds,omitempty"`
+}
+
+// CreateNoteRequest represents a request to create a note
+type CreateNoteRequest struct {
+    ParentNoteID string `json:"parentNoteId"`
+    Title        string `json:"title"`
+    Type         string `json:"type"`
+    Content      string `json:"content"`
+    NotePosition int    `json:"notePosition,omitempty"`
+    Prefix       string `json:"prefix,omitempty"`
+    IsExpanded   bool   `json:"isExpanded,omitempty"`
+}
+
+// Attribute represents a note attribute
+type Attribute struct {
+    AttributeID   string `json:"attributeId,omitempty"`
+    NoteID        string `json:"noteId"`
+    Type          string `json:"type"`
+    Name          string `json:"name"`
+    Value         string `json:"value"`
+    Position      int    `json:"position,omitempty"`
+    IsInheritable bool   `json:"isInheritable,omitempty"`
+}
+
+// Branch represents a note branch
+type Branch struct {
+    BranchID     string `json:"branchId,omitempty"`
+    NoteID       string `json:"noteId"`
+    ParentNoteID string `json:"parentNoteId"`
+    Prefix       string `json:"prefix,omitempty"`
+    NotePosition int    `json:"notePosition,omitempty"`
+    IsExpanded   bool   `json:"isExpanded,omitempty"`
+}
+
+// SearchParams represents search parameters
+type SearchParams struct {
+    Search               string `url:"search"`
+    FastSearch           bool   `url:"fastSearch,omitempty"`
+    IncludeArchivedNotes bool   `url:"includeArchivedNotes,omitempty"`
+    AncestorNoteID       string `url:"ancestorNoteId,omitempty"`
+    AncestorDepth        string `url:"ancestorDepth,omitempty"`
+    OrderBy              string `url:"orderBy,omitempty"`
+    OrderDirection       string `url:"orderDirection,omitempty"`
+    Limit                int    `url:"limit,omitempty"`
+    Debug                bool   `url:"debug,omitempty"`
+}
+
+// SearchResponse represents search results
+type SearchResponse struct {
+    Results   []Note                 `json:"results"`
+    DebugInfo map[string]interface{} `json:"debugInfo,omitempty"`
+}
+
+// Client is the Trilium API client
+type Client struct {
+    BaseURL    string
+    Token      string
+    HTTPClient *http.Client
+}
+
+// NewClient creates a new Trilium client
+func NewClient(baseURL, token string) *Client {
+    return &Client{
+        BaseURL: baseURL,
+        Token:   token,
+        HTTPClient: &http.Client{
+            Timeout: 30 * time.Second,
+        },
+    }
+}
+
+// request makes an HTTP request to the API
+func (c *Client) request(method, endpoint string, body interface{}) (*http.Response, error) {
+    url := c.BaseURL + endpoint
+    
+    var reqBody io.Reader
+    if body != nil {
+        jsonBody, err := json.Marshal(body)
+        if err != nil {
+            return nil, fmt.Errorf("failed to marshal request body: %w", err)
+        }
+        reqBody = bytes.NewBuffer(jsonBody)
+    }
+    
+    req, err := http.NewRequest(method, url, reqBody)
+    if err != nil {
+        return nil, fmt.Errorf("failed to create request: %w", err)
+    }
+    
+    req.Header.Set("Authorization", c.Token)
+    if body != nil {
+        req.Header.Set("Content-Type", "application/json")
+    }
+    
+    resp, err := c.HTTPClient.Do(req)
+    if err != nil {
+        return nil, fmt.Errorf("request failed: %w", err)
+    }
+    
+    if resp.StatusCode >= 400 {
+        defer resp.Body.Close()
+        bodyBytes, _ := io.ReadAll(resp.Body)
+        return nil, fmt.Errorf("API error %d: %s", resp.StatusCode, string(bodyBytes))
+    }
+    
+    return resp, nil
+}
+
+// CreateNote creates a new note
+func (c *Client) CreateNote(req CreateNoteRequest) (*Note, *Branch, error) {
+    resp, err := c.request("POST", "/create-note", req)
+    if err != nil {
+        return nil, nil, err
+    }
+    defer resp.Body.Close()
+    
+    var result struct {
+        Note   Note   `json:"note"`
+        Branch Branch `json:"branch"`
+    }
+    
+    if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+        return nil, nil, fmt.Errorf("failed to decode response: %w", err)
+    }
+    
+    return &result.Note, &result.Branch, nil
+}
+
+// GetNote retrieves a note by ID
+func (c *Client) GetNote(noteID string) (*Note, error) {
+    resp, err := c.request("GET", fmt.Sprintf("/notes/%s", noteID), nil)
+    if err != nil {
+        return nil, err
+    }
+    defer resp.Body.Close()
+    
+    var note Note
+    if err := json.NewDecoder(resp.Body).Decode(&note); err != nil {
+        return nil, fmt.Errorf("failed to decode response: %w", err)
+    }
+    
+    return &note, nil
+}
+
+// UpdateNote updates a note
+func (c *Client) UpdateNote(noteID string, updates map[string]interface{}) (*Note, error) {
+    resp, err := c.request("PATCH", fmt.Sprintf("/notes/%s", noteID), updates)
+    if err != nil {
+        return nil, err
+    }
+    defer resp.Body.Close()
+    
+    var note Note
+    if err := json.NewDecoder(resp.Body).Decode(&note); err != nil {
+        return nil, fmt.Errorf("failed to decode response: %w", err)
+    }
+    
+    return &note, nil
+}
+
+// DeleteNote deletes a note
+func (c *Client) DeleteNote(noteID string) error {
+    resp, err := c.request("DELETE", fmt.Sprintf("/notes/%s", noteID), nil)
+    if err != nil {
+        return err
+    }
+    resp.Body.Close()
+    return nil
+}
+
+// GetNoteContent retrieves note content
+func (c *Client) GetNoteContent(noteID string) (string, error) {
+    resp, err := c.request("GET", fmt.Sprintf("/notes/%s/content", noteID), nil)
+    if err != nil {
+        return "", err
+    }
+    defer resp.Body.Close()
+    
+    content, err := io.ReadAll(resp.Body)
+    if err != nil {
+        return "", fmt.Errorf("failed to read response: %w", err)
+    }
+    
+    return string(content), nil
+}
+
+// UpdateNoteContent updates note content
+func (c *Client) UpdateNoteContent(noteID, content string) error {
+    req, err := http.NewRequest("PUT", c.BaseURL+fmt.Sprintf("/notes/%s/content", noteID), bytes.NewBufferString(content))
+    if err != nil {
+        return fmt.Errorf("failed to create request: %w", err)
+    }
+    
+    req.Header.Set("Authorization", c.Token)
+    req.Header.Set("Content-Type", "text/plain")
+    
+    resp, err := c.HTTPClient.Do(req)
+    if err != nil {
+        return fmt.Errorf("request failed: %w", err)
+    }
+    defer resp.Body.Close()
+    
+    if resp.StatusCode >= 400 {
+        bodyBytes, _ := io.ReadAll(resp.Body)
+        return fmt.Errorf("API error %d: %s", resp.StatusCode, string(bodyBytes))
+    }
+    
+    return nil
+}
+
+// SearchNotes searches for notes
+func (c *Client) SearchNotes(params SearchParams) (*SearchResponse, error) {
+    query := url.Values{}
+    query.Set("search", params.Search)
+    
+    if params.FastSearch {
+        query.Set("fastSearch", "true")
+    }
+    if params.IncludeArchivedNotes {
+        query.Set("includeArchivedNotes", "true")
+    }
+    if params.AncestorNoteID != "" {
+        query.Set("ancestorNoteId", params.AncestorNoteID)
+    }
+    if params.OrderBy != "" {
+        query.Set("orderBy", params.OrderBy)
+    }
+    if params.OrderDirection != "" {
+        query.Set("orderDirection", params.OrderDirection)
+    }
+    if params.Limit > 0 {
+        query.Set("limit", fmt.Sprintf("%d", params.Limit))
+    }
+    
+    resp, err := c.request("GET", fmt.Sprintf("/notes?%s", query.Encode()), nil)
+    if err != nil {
+        return nil, err
+    }
+    defer resp.Body.Close()
+    
+    var searchResp SearchResponse
+    if err := json.NewDecoder(resp.Body).Decode(&searchResp); err != nil {
+        return nil, fmt.Errorf("failed to decode response: %w", err)
+    }
+    
+    return &searchResp, nil
+}
+
+// AddLabel adds a label to a note
+func (c *Client) AddLabel(noteID, name, value string) (*Attribute, error) {
+    attr := Attribute{
+        NoteID: noteID,
+        Type:   "label",
+        Name:   name,
+        Value:  value,
+    }
+    
+    resp, err := c.request("POST", "/attributes", attr)
+    if err != nil {
+        return nil, err
+    }
+    defer resp.Body.Close()
+    
+    var result Attribute
+    if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+        return nil, fmt.Errorf("failed to decode response: %w", err)
+    }
+    
+    return &result, nil
+}
+
+// Usage example
+func Example() {
+    client := NewClient("http://localhost:8080/etapi", "your-token")
+    
+    // Create a note
+    note, branch, err := client.CreateNote(CreateNoteRequest{
+        ParentNoteID: "root",
+        Title:        "Test Note",
+        Type:         "text",
+        Content:      "<p>Hello from Go!</p>",
+    })
+    
+    if err != nil {
+        panic(err)
+    }
+    
+    fmt.Printf("Created note %s with branch %s\n", note.NoteID, branch.BranchID)
+    
+    // Search notes
+    results, err := client.SearchNotes(SearchParams{
+        Search: "#todo",
+        Limit:  10,
+    })
+    
+    if err != nil {
+        panic(err)
+    }
+    
+    fmt.Printf("Found %d todo notes\n", len(results.Results))
+}
+```
+
+## REST Client Best Practices
+
+### 1\. Connection Management
+
+```python
+# Python - Connection pooling with requests
+import requests
+from requests.adapters import HTTPAdapter
+from urllib3.util.retry import Retry
+
+class RobustTriliumClient:
+    def __init__(self, base_url, token):
+        self.base_url = base_url
+        self.token = token
+        
+        # Configure connection pooling and retries
+        self.session = requests.Session()
+        
+        retry_strategy = Retry(
+            total=3,
+            backoff_factor=1,
+            status_forcelist=[429, 500, 502, 503, 504],
+            allowed_methods=["HEAD", "GET", "PUT", "DELETE", "OPTIONS", "TRACE", "POST"]
+        )
+        
+        adapter = HTTPAdapter(
+            max_retries=retry_strategy,
+            pool_connections=10,
+            pool_maxsize=10
+        )
+        
+        self.session.mount("http://", adapter)
+        self.session.mount("https://", adapter)
+        
+        self.session.headers.update({
+            'Authorization': token,
+            'Content-Type': 'application/json'
+        })
+```
+
+### 2\. Request Timeout Handling
+
+```javascript
+// JavaScript - Timeout with abort controller
+class TimeoutClient {
+    constructor(baseUrl, token, timeout = 30000) {
+        this.baseUrl = baseUrl;
+        this.token = token;
+        this.timeout = timeout;
+    }
+    
+    async request(endpoint, options = {}) {
+        const controller = new AbortController();
+        const timeoutId = setTimeout(() => controller.abort(), this.timeout);
+        
+        try {
+            const response = await fetch(`${this.baseUrl}${endpoint}`, {
+                ...options,
+                headers: {
+                    'Authorization': this.token,
+                    ...options.headers
+                },
+                signal: controller.signal
+            });
+            
+            clearTimeout(timeoutId);
+            
+            if (!response.ok) {
+                throw new Error(`HTTP ${response.status}: ${response.statusText}`);
+            }
+            
+            return response.json();
+        } catch (error) {
+            if (error.name === 'AbortError') {
+                throw new Error(`Request timeout after ${this.timeout}ms`);
+            }
+            throw error;
+        } finally {
+            clearTimeout(timeoutId);
+        }
+    }
+}
+```
+
+### 3\. Rate Limiting
+
+```python
+# Python - Rate limiting with token bucket
+import time
+from threading import Lock
+
+class RateLimitedClient:
+    def __init__(self, base_url, token, requests_per_second=10):
+        self.base_url = base_url
+        self.token = token
+        self.rate_limit = requests_per_second
+        self.tokens = requests_per_second
+        self.last_update = time.time()
+        self.lock = Lock()
+    
+    def _wait_for_token(self):
+        with self.lock:
+            now = time.time()
+            elapsed = now - self.last_update
+            self.tokens = min(
+                self.rate_limit,
+                self.tokens + elapsed * self.rate_limit
+            )
+            self.last_update = now
+            
+            if self.tokens < 1:
+                sleep_time = (1 - self.tokens) / self.rate_limit
+                time.sleep(sleep_time)
+                self.tokens = 1
+            
+            self.tokens -= 1
+    
+    def request(self, method, endpoint, **kwargs):
+        self._wait_for_token()
+        # Make actual request here
+        return self._make_request(method, endpoint, **kwargs)
+```
+
+### 4\. Caching
+
+```typescript
+// TypeScript - Response caching
+interface CacheEntry<T> {
+    data: T;
+    timestamp: number;
+    ttl: number;
+}
+
+class CachedTriliumClient extends TriliumClient {
+    private cache = new Map<string, CacheEntry<any>>();
+    private defaultTTL = 5 * 60 * 1000; // 5 minutes
+    
+    private getCacheKey(method: string, endpoint: string, params?: any): string {
+        return `${method}:${endpoint}:${JSON.stringify(params || {})}`;
+    }
+    
+    private isExpired(entry: CacheEntry<any>): boolean {
+        return Date.now() - entry.timestamp > entry.ttl;
+    }
+    
+    async cachedRequest<T>(
+        method: string,
+        endpoint: string,
+        options: {
+            params?: any;
+            ttl?: number;
+            forceRefresh?: boolean;
+        } = {}
+    ): Promise<T> {
+        const key = this.getCacheKey(method, endpoint, options.params);
+        
+        // Check cache for GET requests
+        if (method === 'GET' && !options.forceRefresh) {
+            const cached = this.cache.get(key);
+            if (cached && !this.isExpired(cached)) {
+                return cached.data;
+            }
+        }
+        
+        // Make request
+        const data = await this.request(endpoint, {
+            method,
+            params: options.params
+        });
+        
+        // Cache GET responses
+        if (method === 'GET') {
+            this.cache.set(key, {
+                data,
+                timestamp: Date.now(),
+                ttl: options.ttl || this.defaultTTL
+            });
+        }
+        
+        return data;
+    }
+    
+    clearCache(pattern?: string): void {
+        if (pattern) {
+            for (const key of this.cache.keys()) {
+                if (key.includes(pattern)) {
+                    this.cache.delete(key);
+                }
+            }
+        } else {
+            this.cache.clear();
+        }
+    }
+}
+```
+
+## Error Handling Patterns
+
+### Comprehensive Error Handling
+
+```python
+# Python - Detailed error handling
+class TriliumAPIError(Exception):
+    """Base exception for API errors"""
+    def __init__(self, message, status_code=None, response_data=None):
+        super().__init__(message)
+        self.status_code = status_code
+        self.response_data = response_data
+
+class TriliumValidationError(TriliumAPIError):
+    """Validation error (400)"""
+    pass
+
+class TriliumAuthenticationError(TriliumAPIError):
+    """Authentication error (401)"""
+    pass
+
+class TriliumPermissionError(TriliumAPIError):
+    """Permission error (403)"""
+    pass
+
+class TriliumNotFoundError(TriliumAPIError):
+    """Resource not found (404)"""
+    pass
+
+class TriliumRateLimitError(TriliumAPIError):
+    """Rate limit exceeded (429)"""
+    pass
+
+class TriliumServerError(TriliumAPIError):
+    """Server error (5xx)"""
+    pass
+
+def handle_api_error(response):
+    """Handle API error responses"""
+    try:
+        error_data = response.json()
+        message = error_data.get('message', response.reason)
+    except:
+        message = response.reason
+        error_data = None
+    
+    status_code = response.status_code
+    
+    if status_code == 400:
+        raise TriliumValidationError(message, status_code, error_data)
+    elif status_code == 401:
+        raise TriliumAuthenticationError(message, status_code, error_data)
+    elif status_code == 403:
+        raise TriliumPermissionError(message, status_code, error_data)
+    elif status_code == 404:
+        raise TriliumNotFoundError(message, status_code, error_data)
+    elif status_code == 429:
+        raise TriliumRateLimitError(message, status_code, error_data)
+    elif status_code >= 500:
+        raise TriliumServerError(message, status_code, error_data)
+    else:
+        raise TriliumAPIError(message, status_code, error_data)
+
+# Usage
+try:
+    note = client.get_note('invalid_id')
+except TriliumNotFoundError as e:
+    print(f"Note not found: {e}")
+except TriliumAuthenticationError as e:
+    print(f"Authentication failed: {e}")
+    # Refresh token or re-authenticate
+except TriliumServerError as e:
+    print(f"Server error: {e}")
+    # Retry after delay
+except TriliumAPIError as e:
+    print(f"API error ({e.status_code}): {e}")
+```
+
+## Retry Strategies
+
+### Exponential Backoff
+
+```javascript
+// JavaScript - Exponential backoff with jitter
+class RetryClient {
+    constructor(baseUrl, token, maxRetries = 3) {
+        this.baseUrl = baseUrl;
+        this.token = token;
+        this.maxRetries = maxRetries;
+    }
+    
+    async requestWithRetry(endpoint, options = {}, attempt = 0) {
+        try {
+            const response = await fetch(`${this.baseUrl}${endpoint}`, {
+                ...options,
+                headers: {
+                    'Authorization': this.token,
+                    ...options.headers
+                }
+            });
+            
+            if (response.status >= 500 && attempt < this.maxRetries) {
+                throw new Error(`Server error: ${response.status}`);
+            }
+            
+            if (!response.ok) {
+                const error = await response.json();
+                throw new Error(error.message || `HTTP ${response.status}`);
+            }
+            
+            return response.json();
+            
+        } catch (error) {
+            if (attempt >= this.maxRetries) {
+                throw error;
+            }
+            
+            // Calculate delay with exponential backoff and jitter
+            const baseDelay = Math.pow(2, attempt) * 1000;
+            const jitter = Math.random() * 1000;
+            const delay = baseDelay + jitter;
+            
+            console.log(`Retry attempt ${attempt + 1} after ${delay}ms`);
+            
+            await new Promise(resolve => setTimeout(resolve, delay));
+            
+            return this.requestWithRetry(endpoint, options, attempt + 1);
+        }
+    }
+}
+```
+
+### Circuit Breaker Pattern
+
+```python
+# Python - Circuit breaker implementation
+import time
+from enum import Enum
+from threading import Lock
+
+class CircuitState(Enum):
+    CLOSED = "closed"
+    OPEN = "open"
+    HALF_OPEN = "half_open"
+
+class CircuitBreaker:
+    def __init__(
+        self,
+        failure_threshold=5,
+        recovery_timeout=60,
+        expected_exception=Exception
+    ):
+        self.failure_threshold = failure_threshold
+        self.recovery_timeout = recovery_timeout
+        self.expected_exception = expected_exception
+        
+        self.failure_count = 0
+        self.last_failure_time = None
+        self.state = CircuitState.CLOSED
+        self.lock = Lock()
+    
+    def call(self, func, *args, **kwargs):
+        with self.lock:
+            if self.state == CircuitState.OPEN:
+                if time.time() - self.last_failure_time > self.recovery_timeout:
+                    self.state = CircuitState.HALF_OPEN
+                else:
+                    raise Exception("Circuit breaker is OPEN")
+        
+        try:
+            result = func(*args, **kwargs)
+            with self.lock:
+                self.on_success()
+            return result
+        except self.expected_exception as e:
+            with self.lock:
+                self.on_failure()
+            raise e
+    
+    def on_success(self):
+        self.failure_count = 0
+        self.state = CircuitState.CLOSED
+    
+    def on_failure(self):
+        self.failure_count += 1
+        self.last_failure_time = time.time()
+        
+        if self.failure_count >= self.failure_threshold:
+            self.state = CircuitState.OPEN
+
+class CircuitBreakerClient(TriliumClient):
+    def __init__(self, base_url, token):
+        super().__init__(base_url, token)
+        self.circuit_breaker = CircuitBreaker(
+            failure_threshold=5,
+            recovery_timeout=60,
+            expected_exception=TriliumConnectionError
+        )
+    
+    def _request(self, method, endpoint, **kwargs):
+        return self.circuit_breaker.call(
+            super()._request,
+            method,
+            endpoint,
+            **kwargs
+        )
+```
+
+## Testing Client Libraries
+
+### Unit Testing
+
+```python
+# Python - Unit tests with mocking
+import unittest
+from unittest.mock import Mock, patch, MagicMock
+import json
+
+class TestTriliumClient(unittest.TestCase):
+    def setUp(self):
+        self.client = TriliumClient(
+            base_url="http://localhost:8080/etapi",
+            token="test-token"
+        )
+    
+    @patch('requests.Session.request')
+    def test_create_note(self, mock_request):
+        # Mock response
+        mock_response = Mock()
+        mock_response.status_code = 201
+        mock_response.json.return_value = {
+            'note': {
+                'noteId': 'test123',
+                'title': 'Test Note',
+                'type': 'text'
+            },
+            'branch': {
+                'branchId': 'branch123',
+                'noteId': 'test123',
+                'parentNoteId': 'root'
+            }
+        }
+        mock_request.return_value = mock_response
+        
+        # Test create note
+        result = self.client.create_note(
+            parent_note_id='root',
+            title='Test Note',
+            content='<p>Test content</p>'
+        )
+        
+        # Assertions
+        self.assertEqual(result['note']['noteId'], 'test123')
+        self.assertEqual(result['note']['title'], 'Test Note')
+        
+        # Verify request was made correctly
+        mock_request.assert_called_once()
+        call_args = mock_request.call_args
+        self.assertEqual(call_args[1]['method'], 'POST')
+        self.assertEqual(call_args[1]['url'], 'http://localhost:8080/etapi/create-note')
+    
+    @patch('requests.Session.request')
+    def test_search_notes(self, mock_request):
+        # Mock response
+        mock_response = Mock()
+        mock_response.status_code = 200
+        mock_response.json.return_value = {
+            'results': [
+                {'noteId': 'note1', 'title': 'Note 1'},
+                {'noteId': 'note2', 'title': 'Note 2'}
+            ]
+        }
+        mock_request.return_value = mock_response
+        
+        # Test search
+        results = self.client.search_notes('#todo', limit=10)
+        
+        # Assertions
+        self.assertEqual(len(results), 2)
+        self.assertEqual(results[0].noteId, 'note1')
+        
+    @patch('requests.Session.request')
+    def test_error_handling(self, mock_request):
+        # Mock error response
+        mock_response = Mock()
+        mock_response.status_code = 404
+        mock_response.json.return_value = {
+            'status': 404,
+            'code': 'NOTE_NOT_FOUND',
+            'message': 'Note not found'
+        }
+        mock_request.return_value = mock_response
+        
+        # Test error handling
+        with self.assertRaises(TriliumNotFoundError) as context:
+            self.client.get_note('invalid_id')
+        
+        self.assertEqual(context.exception.status_code, 404)
+        self.assertIn('Note not found', str(context.exception))
+
+class TestRetryLogic(unittest.TestCase):
+    @patch('time.sleep')
+    @patch('requests.Session.request')
+    def test_retry_on_server_error(self, mock_request, mock_sleep):
+        client = TriliumClient(
+            base_url="http://localhost:8080/etapi",
+            token="test-token",
+            retry_attempts=3
+        )
+        
+        # Mock server error then success
+        mock_response_error = Mock()
+        mock_response_error.status_code = 500
+        
+        mock_response_success = Mock()
+        mock_response_success.status_code = 200
+        mock_response_success.json.return_value = {'noteId': 'test123'}
+        
+        mock_request.side_effect = [
+            mock_response_error,
+            mock_response_error,
+            mock_response_success
+        ]
+        
+        # Should succeed after retries
+        result = client.get_note('test123')
+        self.assertEqual(result.noteId, 'test123')
+        
+        # Verify retries happened
+        self.assertEqual(mock_request.call_count, 3)
+        self.assertEqual(mock_sleep.call_count, 2)
+
+if __name__ == '__main__':
+    unittest.main()
+```
+
+### Integration Testing
+
+```javascript
+// JavaScript - Integration tests with Jest
+describe('TriliumClient Integration Tests', () => {
+    let client;
+    let testNoteId;
+    
+    beforeAll(() => {
+        client = new TriliumClient({
+            baseUrl: process.env.TRILIUM_URL || 'http://localhost:8080/etapi',
+            token: process.env.TRILIUM_TOKEN || 'test-token'
+        });
+    });
+    
+    afterAll(async () => {
+        // Cleanup test notes
+        if (testNoteId) {
+            await client.deleteNote(testNoteId);
+        }
+    });
+    
+    test('should create and retrieve a note', async () => {
+        // Create note
+        const createResult = await client.createNote({
+            parentNoteId: 'root',
+            title: 'Integration Test Note',
+            type: 'text',
+            content: '<p>Test content</p>'
+        });
+        
+        expect(createResult.note).toBeDefined();
+        expect(createResult.note.title).toBe('Integration Test Note');
+        
+        testNoteId = createResult.note.noteId;
+        
+        // Retrieve note
+        const note = await client.getNote(testNoteId);
+        expect(note.noteId).toBe(testNoteId);
+        expect(note.title).toBe('Integration Test Note');
+    });
+    
+    test('should update note content', async () => {
+        const newContent = '<p>Updated content</p>';
+        
+        await client.updateNoteContent(testNoteId, newContent);
+        
+        const content = await client.getNoteContent(testNoteId);
+        expect(content).toBe(newContent);
+    });
+    
+    test('should add and retrieve attributes', async () => {
+        // Add label
+        const attribute = await client.createAttribute({
+            noteId: testNoteId,
+            type: 'label',
+            name: 'testLabel',
+            value: 'testValue'
+        });
+        
+        expect(attribute.attributeId).toBeDefined();
+        
+        // Retrieve note with attributes
+        const note = await client.getNote(testNoteId);
+        const label = note.attributes.find(a => a.name === 'testLabel');
+        
+        expect(label).toBeDefined();
+        expect(label.value).toBe('testValue');
+    });
+    
+    test('should search notes', async () => {
+        // Add searchable label
+        await client.createAttribute({
+            noteId: testNoteId,
+            type: 'label',
+            name: 'integrationTest',
+            value: ''
+        });
+        
+        // Search
+        const results = await client.searchNotes({
+            search: '#integrationTest',
+            limit: 10
+        });
+        
+        expect(results.results).toBeDefined();
+        expect(results.results.length).toBeGreaterThan(0);
+        
+        const foundNote = results.results.find(n => n.noteId === testNoteId);
+        expect(foundNote).toBeDefined();
+    });
+});
+```
+
+## Conclusion
+
+These client libraries provide robust, production-ready implementations for interacting with the Trilium API. Key considerations:
+
+1.  **Choose the right language** for your use case and environment
+2.  **Implement proper error handling** with specific exception types
+3.  **Use connection pooling** for better performance
+4.  **Add retry logic** for resilience against transient failures
+5.  **Consider rate limiting** to avoid overwhelming the server
+6.  **Cache responses** when appropriate to reduce API calls
+7.  **Write comprehensive tests** for reliability
+8.  **Document your client** with clear examples
+
+For additional resources:
+
+*   [ETAPI Complete Guide](ETAPI%20Complete%20Guide.md)
+*   [WebSocket API Documentation](WebSocket%20API.md)
+*   [Script API Cookbook](Script%20API%20Cookbook.md)
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/API Documentation/ETAPI Complete Guide.md b/docs/Developer Guide/Developer Guide/API Documentation/ETAPI Complete Guide.md
new file mode 100644
index 0000000000..8e9d694a70
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/API Documentation/ETAPI Complete Guide.md	
@@ -0,0 +1,1798 @@
+# ETAPI Complete Guide
+## ETAPI Guide
+
+ETAPI (External Trilium API) is the REST API for integrating external applications with Trilium Notes. This guide walks you through authentication, common operations, and best practices for building integrations.
+
+## Getting Started
+
+ETAPI provides programmatic access to your notes, attributes, and attachments through a RESTful interface. The API is designed to be predictable and easy to use, with comprehensive error messages to help you debug issues quickly.
+
+Base URL: `http://localhost:8080/etapi`
+
+## Authentication
+
+Before using the API, you need to authenticate your requests. There are three ways to authenticate with ETAPI.
+
+### Token Authentication (Recommended)
+
+First, generate an ETAPI token in Trilium by navigating to Options → ETAPI and clicking "Create new ETAPI token". Then include this token in your request headers:
+
+```sh
+curl -H "Authorization: your-token" http://localhost:8080/etapi/notes/root
+```
+
+In Python:
+
+```python
+import requests
+
+headers = {'Authorization': 'your-token'}
+response = requests.get('http://localhost:8080/etapi/notes/root', headers=headers)
+```
+
+### Basic Authentication
+
+You can also use the token as a password with any username:
+
+```sh
+curl -u "user:your-token" http://localhost:8080/etapi/notes/root
+```
+
+### Password Authentication
+
+For automated scripts, you can login with your Trilium password to receive a session token. This method is useful when you cannot store API tokens securely:
+
+```python
+# Login and get session token
+response = requests.post('http://localhost:8080/etapi/auth/login', 
+                        json={'password': 'your-password'})
+token = response.json()['authToken']
+
+# Use the session token
+headers = {'Authorization': token}
+```
+
+## API Endpoints
+
+### Notes
+
+#### Create Note
+
+**POST** `/etapi/create-note`
+
+Creating a note requires just a parent note ID and title. The content and other properties are optional:
+
+```json
+{
+  "parentNoteId": "root",
+  "title": "My New Note",
+  "type": "text",
+  "content": "<p>Note content in HTML</p>"
+}
+```
+
+The response includes both the created note and its branch (position in the tree):
+
+```python
+def create_note(parent_id, title, content=""):
+    response = requests.post(
+        "http://localhost:8080/etapi/create-note",
+        headers={'Authorization': 'your-token'},
+        json={
+            "parentNoteId": parent_id,
+            "title": title,
+            "content": content
+        }
+    )
+    return response.json()
+
+# Create a simple note
+note = create_note("root", "Meeting Notes")
+print(f"Created: {note['note']['noteId']}")
+```
+
+#### Get Note by ID
+
+**GET** `/etapi/notes/{noteId}`
+
+**cURL Example:**
+
+```sh
+curl -X GET http://localhost:8080/etapi/notes/evnnmvHTCgIn \
+  -H "Authorization: your-token"
+```
+
+**Response:**
+
+```json
+{
+  "noteId": "evnnmvHTCgIn",
+  "title": "My Note",
+  "type": "text",
+  "mime": "text/html",
+  "isProtected": false,
+  "attributes": [
+    {
+      "attributeId": "abc123",
+      "noteId": "evnnmvHTCgIn",
+      "type": "label",
+      "name": "todo",
+      "value": "",
+      "position": 10,
+      "isInheritable": false
+    }
+  ],
+  "parentNoteIds": ["root"],
+  "childNoteIds": ["child1", "child2"],
+  "dateCreated": "2024-01-15 10:30:00.000+0100",
+  "dateModified": "2024-01-15 14:20:00.000+0100",
+  "utcDateCreated": "2024-01-15 09:30:00.000Z",
+  "utcDateModified": "2024-01-15 13:20:00.000Z"
+}
+```
+
+#### Update Note
+
+**PATCH** `/etapi/notes/{noteId}`
+
+**Request Body:**
+
+```json
+{
+  "title": "Updated Title",
+  "type": "text",
+  "mime": "text/html"
+}
+```
+
+**JavaScript Example:**
+
+```javascript
+async function updateNote(noteId, updates) {
+    const response = await fetch(`http://localhost:8080/etapi/notes/${noteId}`, {
+        method: 'PATCH',
+        headers: {
+            'Authorization': 'your-token',
+            'Content-Type': 'application/json'
+        },
+        body: JSON.stringify(updates)
+    });
+    
+    if (!response.ok) {
+        throw new Error(`Failed to update note: ${response.statusText}`);
+    }
+    
+    return response.json();
+}
+
+// Usage
+updateNote('evnnmvHTCgIn', { title: 'New Title' })
+    .then(note => console.log('Updated note:', note))
+    .catch(err => console.error('Error:', err));
+```
+
+#### Delete Note
+
+**DELETE** `/etapi/notes/{noteId}`
+
+```sh
+curl -X DELETE http://localhost:8080/etapi/notes/evnnmvHTCgIn \
+  -H "Authorization: your-token"
+```
+
+#### Get Note Content
+
+**GET** `/etapi/notes/{noteId}/content`
+
+Returns the content of a note.
+
+```python
+import requests
+
+def get_note_content(note_id, token):
+    url = f"http://localhost:8080/etapi/notes/{note_id}/content"
+    headers = {'Authorization': token}
+    
+    response = requests.get(url, headers=headers)
+    return response.text  # Returns HTML or text content
+
+content = get_note_content('evnnmvHTCgIn', 'your-token')
+print(content)
+```
+
+#### Update Note Content
+
+**PUT** `/etapi/notes/{noteId}/content`
+
+```python
+def update_note_content(note_id, content, token):
+    url = f"http://localhost:8080/etapi/notes/{note_id}/content"
+    headers = {
+        'Authorization': token,
+        'Content-Type': 'text/plain'
+    }
+    
+    response = requests.put(url, headers=headers, data=content)
+    return response.status_code == 204
+
+# Update with HTML content
+html_content = "<h1>Updated Content</h1><p>New paragraph</p>"
+success = update_note_content('evnnmvHTCgIn', html_content, 'your-token')
+```
+
+### Search
+
+#### Search Notes
+
+**GET** `/etapi/notes`
+
+Search notes using Trilium's powerful search syntax. The search parameter accepts keywords, labels, and complex expressions.
+
+```python
+# Simple keyword search
+results = requests.get(
+    "http://localhost:8080/etapi/notes",
+    headers={'Authorization': 'token'},
+    params={'search': 'project management'}
+).json()
+
+# Search by label
+results = requests.get(
+    "http://localhost:8080/etapi/notes",
+    params={'search': '#todo'}
+).json()
+
+# Complex search with sorting
+results = requests.get(
+    "http://localhost:8080/etapi/notes",
+    params={
+        'search': 'type:text #important',
+        'orderBy': 'dateModified',
+        'orderDirection': 'desc',
+        'limit': 10
+    }
+).json()
+```
+
+Common search patterns:
+
+*   Keywords: `project management`
+*   Labels: `#todo`, `#priority=high`
+*   Note type: `type:text`, `type:code`
+*   Date ranges: `dateCreated>=2024-01-01`
+*   Subtree search: Use `ancestorNoteId` parameter
+
+### Attributes
+
+Attributes are key-value metadata attached to notes. There are two types: labels (name-value pairs) and relations (links to other notes).
+
+#### Create Attribute
+
+**POST** `/etapi/attributes`
+
+```python
+# Add a simple label
+requests.post(
+    "http://localhost:8080/etapi/attributes",
+    headers={'Authorization': 'token'},
+    json={
+        "noteId": "note123",
+        "type": "label",
+        "name": "todo"
+    }
+)
+
+# Add label with value
+requests.post(
+    "http://localhost:8080/etapi/attributes",
+    json={
+        "noteId": "note123",
+        "type": "label",
+        "name": "priority",
+        "value": "high"
+    }
+)
+```
+
+#### Update Attribute
+
+**PATCH** `/etapi/attributes/{attributeId}`
+
+You can only update the value and position of labels. Relations can only have their position updated.
+
+```python
+# Update attribute value
+requests.patch(
+    "http://localhost:8080/etapi/attributes/attr123",
+    json={"value": "low"}
+)
+```
+
+#### Delete Attribute
+
+**DELETE** `/etapi/attributes/{attributeId}`
+
+### Branches
+
+Branches represent the position of notes in the tree structure. A note can appear in multiple locations through cloning.
+
+#### Clone Note to Another Location
+
+**POST** `/etapi/branches`
+
+```python
+# Clone a note to a new parent
+requests.post(
+    "http://localhost:8080/etapi/branches",
+    headers={'Authorization': 'token'},
+    json={
+        "noteId": "note123",
+        "parentNoteId": "newParent456"
+    }
+)
+```
+
+This creates a "clone" - the same note appearing in multiple places. Changes to the note content affect all locations.
+
+#### Move Note Position
+
+**PATCH** `/etapi/branches/{branchId}`
+
+```python
+# Change note position or prefix
+requests.patch(
+    "http://localhost:8080/etapi/branches/branch123",
+    json={"notePosition": 5}
+)
+```
+
+#### Remove Branch
+
+**DELETE** `/etapi/branches/{branchId}`
+
+Removes a note from one location. If it's the last location, the note itself is deleted.
+
+### Attachments
+
+#### Create Attachment
+
+**POST** `/etapi/attachments`
+
+```json
+{
+  "ownerId": "evnnmvHTCgIn",
+  "role": "file",
+  "mime": "application/pdf",
+  "title": "document.pdf",
+  "content": "base64-encoded-content",
+  "position": 10
+}
+```
+
+**Python Example with File Upload:**
+
+```python
+import base64
+
+def upload_attachment(note_id, file_path, title=None):
+    with open(file_path, 'rb') as f:
+        content = base64.b64encode(f.read()).decode('utf-8')
+    
+    import mimetypes
+    mime_type = mimetypes.guess_type(file_path)[0] or 'application/octet-stream'
+    
+    if title is None:
+        import os
+        title = os.path.basename(file_path)
+    
+    url = "http://localhost:8080/etapi/attachments"
+    headers = {
+        'Authorization': 'your-token',
+        'Content-Type': 'application/json'
+    }
+    
+    data = {
+        "ownerId": note_id,
+        "role": "file",
+        "mime": mime_type,
+        "title": title,
+        "content": content
+    }
+    
+    response = requests.post(url, headers=headers, json=data)
+    return response.json()
+
+# Upload a PDF
+attachment = upload_attachment("evnnmvHTCgIn", "/path/to/document.pdf")
+print(f"Attachment ID: {attachment['attachmentId']}")
+```
+
+#### Get Attachment Content
+
+**GET** `/etapi/attachments/{attachmentId}/content`
+
+```python
+def download_attachment(attachment_id, output_path):
+    url = f"http://localhost:8080/etapi/attachments/{attachment_id}/content"
+    headers = {'Authorization': 'your-token'}
+    
+    response = requests.get(url, headers=headers)
+    
+    with open(output_path, 'wb') as f:
+        f.write(response.content)
+    
+    return output_path
+
+# Download attachment
+download_attachment("attachId123", "/tmp/downloaded.pdf")
+```
+
+### Special Notes
+
+#### Get Inbox Note
+
+**GET** `/etapi/inbox/{date}`
+
+Gets or creates an inbox note for the specified date.
+
+```python
+from datetime import date
+
+def get_inbox_note(target_date=None):
+    if target_date is None:
+        target_date = date.today()
+    
+    date_str = target_date.strftime('%Y-%m-%d')
+    url = f"http://localhost:8080/etapi/inbox/{date_str}"
+    headers = {'Authorization': 'your-token'}
+    
+    response = requests.get(url, headers=headers)
+    return response.json()
+
+# Get today's inbox
+inbox = get_inbox_note()
+print(f"Inbox note ID: {inbox['noteId']}")
+```
+
+#### Calendar Notes
+
+**Day Note:**
+
+```python
+def get_day_note(date_str):
+    url = f"http://localhost:8080/etapi/calendar/days/{date_str}"
+    headers = {'Authorization': 'your-token'}
+    response = requests.get(url, headers=headers)
+    return response.json()
+
+day_note = get_day_note("2024-01-15")
+```
+
+**Week Note:**
+
+```python
+def get_week_note(date_str):
+    url = f"http://localhost:8080/etapi/calendar/weeks/{date_str}"
+    headers = {'Authorization': 'your-token'}
+    response = requests.get(url, headers=headers)
+    return response.json()
+
+week_note = get_week_note("2024-01-15")
+```
+
+**Month Note:**
+
+```python
+def get_month_note(month_str):
+    url = f"http://localhost:8080/etapi/calendar/months/{month_str}"
+    headers = {'Authorization': 'your-token'}
+    response = requests.get(url, headers=headers)
+    return response.json()
+
+month_note = get_month_note("2024-01")
+```
+
+**Year Note:**
+
+```python
+def get_year_note(year):
+    url = f"http://localhost:8080/etapi/calendar/years/{year}"
+    headers = {'Authorization': 'your-token'}
+    response = requests.get(url, headers=headers)
+    return response.json()
+
+year_note = get_year_note("2024")
+```
+
+### Import/Export
+
+#### Export Note Subtree
+
+**GET** `/etapi/notes/{noteId}/export`
+
+Exports a note subtree as a ZIP file.
+
+**Query Parameters:**
+
+*   `format`: "html" (default) or "markdown"
+
+```python
+def export_subtree(note_id, output_file, format="html"):
+    url = f"http://localhost:8080/etapi/notes/{note_id}/export"
+    headers = {'Authorization': 'your-token'}
+    params = {'format': format}
+    
+    response = requests.get(url, headers=headers, params=params)
+    
+    with open(output_file, 'wb') as f:
+        f.write(response.content)
+    
+    return output_file
+
+# Export entire database
+export_subtree("root", "backup.zip")
+
+# Export specific subtree as markdown
+export_subtree("projectNoteId", "project.zip", format="markdown")
+```
+
+#### Import ZIP
+
+**POST** `/etapi/notes/{noteId}/import`
+
+Imports a ZIP file into a note.
+
+```python
+def import_zip(parent_note_id, zip_file_path):
+    url = f"http://localhost:8080/etapi/notes/{parent_note_id}/import"
+    headers = {'Authorization': 'your-token'}
+    
+    with open(zip_file_path, 'rb') as f:
+        files = {'file': f}
+        response = requests.post(url, headers=headers, files=files)
+    
+    return response.json()
+
+# Import backup
+imported = import_zip("root", "backup.zip")
+print(f"Imported note ID: {imported['note']['noteId']}")
+```
+
+### Utility Endpoints
+
+#### Create Note Revision
+
+**POST** `/etapi/notes/{noteId}/revision`
+
+Forces creation of a revision for the specified note.
+
+```sh
+curl -X POST http://localhost:8080/etapi/notes/evnnmvHTCgIn/revision \
+  -H "Authorization: your-token"
+```
+
+#### Refresh Note Ordering
+
+**POST** `/etapi/refresh-note-ordering/{parentNoteId}`
+
+Updates note ordering in connected clients after changing positions.
+
+```python
+def reorder_children(parent_id, note_positions):
+    """
+    note_positions: dict of {noteId: position}
+    """
+    headers = {
+        'Authorization': 'your-token',
+        'Content-Type': 'application/json'
+    }
+    
+    # Update each branch position
+    for note_id, position in note_positions.items():
+        # Get the branch ID first
+        note = requests.get(
+            f"http://localhost:8080/etapi/notes/{note_id}",
+            headers=headers
+        ).json()
+        
+        for branch_id in note['parentBranchIds']:
+            branch = requests.get(
+                f"http://localhost:8080/etapi/branches/{branch_id}",
+                headers=headers
+            ).json()
+            
+            if branch['parentNoteId'] == parent_id:
+                # Update position
+                requests.patch(
+                    f"http://localhost:8080/etapi/branches/{branch_id}",
+                    headers=headers,
+                    json={'notePosition': position}
+                )
+    
+    # Refresh ordering
+    requests.post(
+        f"http://localhost:8080/etapi/refresh-note-ordering/{parent_id}",
+        headers=headers
+    )
+
+# Reorder notes
+reorder_children("parentId", {
+    "note1": 10,
+    "note2": 20,
+    "note3": 30
+})
+```
+
+#### Get App Info
+
+**GET** `/etapi/app-info`
+
+Returns information about the Trilium instance.
+
+```python
+def get_app_info():
+    url = "http://localhost:8080/etapi/app-info"
+    headers = {'Authorization': 'your-token'}
+    response = requests.get(url, headers=headers)
+    return response.json()
+
+info = get_app_info()
+print(f"Trilium version: {info['appVersion']}")
+print(f"Database version: {info['dbVersion']}")
+print(f"Data directory: {info['dataDirectory']}")
+```
+
+#### Create Backup
+
+**PUT** `/etapi/backup/{backupName}`
+
+Creates a database backup.
+
+```sh
+curl -X PUT http://localhost:8080/etapi/backup/daily \
+  -H "Authorization: your-token"
+```
+
+This creates a backup file named `backup-daily.db` in the data directory.
+
+## Common Use Cases
+
+### 1\. Daily Journal Entry
+
+```python
+from datetime import date
+import requests
+
+class TriliumJournal:
+    def __init__(self, base_url, token):
+        self.base_url = base_url
+        self.headers = {'Authorization': token}
+    
+    def create_journal_entry(self, content, tags=[]):
+        # Get today's day note
+        today = date.today().strftime('%Y-%m-%d')
+        day_note_url = f"{self.base_url}/calendar/days/{today}"
+        day_note = requests.get(day_note_url, headers=self.headers).json()
+        
+        # Create entry
+        entry_data = {
+            "parentNoteId": day_note['noteId'],
+            "title": f"Entry - {date.today().strftime('%H:%M')}",
+            "type": "text",
+            "content": content
+        }
+        
+        response = requests.post(
+            f"{self.base_url}/create-note",
+            headers={**self.headers, 'Content-Type': 'application/json'},
+            json=entry_data
+        )
+        
+        entry = response.json()
+        
+        # Add tags
+        for tag in tags:
+            self.add_tag(entry['note']['noteId'], tag)
+        
+        return entry
+    
+    def add_tag(self, note_id, tag_name):
+        attr_data = {
+            "noteId": note_id,
+            "type": "label",
+            "name": tag_name,
+            "value": ""
+        }
+        
+        requests.post(
+            f"{self.base_url}/attributes",
+            headers={**self.headers, 'Content-Type': 'application/json'},
+            json=attr_data
+        )
+
+# Usage
+journal = TriliumJournal("http://localhost:8080/etapi", "your-token")
+entry = journal.create_journal_entry(
+    "<p>Today's meeting went well. Key decisions:</p><ul><li>Item 1</li></ul>",
+    tags=["meeting", "important"]
+)
+```
+
+### 2\. Task Management System
+
+```python
+class TriliumTaskManager:
+    def __init__(self, base_url, token):
+        self.base_url = base_url
+        self.headers = {'Authorization': token}
+        self.task_parent_id = self.get_or_create_task_root()
+    
+    def get_or_create_task_root(self):
+        # Search for existing task root
+        search_url = f"{self.base_url}/notes"
+        params = {'search': '#taskRoot'}
+        response = requests.get(search_url, headers=self.headers, params=params)
+        results = response.json()['results']
+        
+        if results:
+            return results[0]['noteId']
+        
+        # Create task root
+        data = {
+            "parentNoteId": "root",
+            "title": "Tasks",
+            "type": "text",
+            "content": "<p>Task Management System</p>"
+        }
+        
+        response = requests.post(
+            f"{self.base_url}/create-note",
+            headers={**self.headers, 'Content-Type': 'application/json'},
+            json=data
+        )
+        
+        note_id = response.json()['note']['noteId']
+        
+        # Add taskRoot label
+        self.add_label(note_id, "taskRoot")
+        return note_id
+    
+    def create_task(self, title, description, priority="medium", due_date=None):
+        data = {
+            "parentNoteId": self.task_parent_id,
+            "title": title,
+            "type": "text",
+            "content": f"<p>{description}</p>"
+        }
+        
+        response = requests.post(
+            f"{self.base_url}/create-note",
+            headers={**self.headers, 'Content-Type': 'application/json'},
+            json=data
+        )
+        
+        task = response.json()
+        task_id = task['note']['noteId']
+        
+        # Add task attributes
+        self.add_label(task_id, "task")
+        self.add_label(task_id, "todoStatus", "todo")
+        self.add_label(task_id, "priority", priority)
+        
+        if due_date:
+            self.add_label(task_id, "dueDate", due_date)
+        
+        return task
+    
+    def get_tasks(self, status=None):
+        if status:
+            search = f"#task #todoStatus={status}"
+        else:
+            search = "#task"
+        
+        params = {
+            'search': search,
+            'ancestorNoteId': self.task_parent_id
+        }
+        
+        response = requests.get(
+            f"{self.base_url}/notes",
+            headers=self.headers,
+            params=params
+        )
+        
+        return response.json()['results']
+    
+    def complete_task(self, task_id):
+        # Find the todoStatus attribute
+        note = requests.get(
+            f"{self.base_url}/notes/{task_id}",
+            headers=self.headers
+        ).json()
+        
+        for attr in note['attributes']:
+            if attr['name'] == 'todoStatus':
+                # Update status
+                requests.patch(
+                    f"{self.base_url}/attributes/{attr['attributeId']}",
+                    headers={**self.headers, 'Content-Type': 'application/json'},
+                    json={'value': 'done'}
+                )
+                break
+    
+    def add_label(self, note_id, name, value=""):
+        data = {
+            "noteId": note_id,
+            "type": "label",
+            "name": name,
+            "value": value
+        }
+        
+        requests.post(
+            f"{self.base_url}/attributes",
+            headers={**self.headers, 'Content-Type': 'application/json'},
+            json=data
+        )
+
+# Usage
+tasks = TriliumTaskManager("http://localhost:8080/etapi", "your-token")
+
+# Create tasks
+task1 = tasks.create_task(
+    "Review API documentation",
+    "Check for completeness and accuracy",
+    priority="high",
+    due_date="2024-01-20"
+)
+
+task2 = tasks.create_task(
+    "Update client library",
+    "Add new ETAPI endpoints",
+    priority="medium"
+)
+
+# List pending tasks
+pending = tasks.get_tasks(status="todo")
+for task in pending:
+    print(f"- {task['title']}")
+
+# Complete a task
+tasks.complete_task(task1['note']['noteId'])
+```
+
+### 3\. Knowledge Base Builder
+
+```python
+class KnowledgeBase:
+    def __init__(self, base_url, token):
+        self.base_url = base_url
+        self.headers = {'Authorization': token}
+    
+    def create_article(self, category, title, content, tags=[]):
+        # Find or create category
+        category_id = self.get_or_create_category(category)
+        
+        # Create article
+        data = {
+            "parentNoteId": category_id,
+            "title": title,
+            "type": "text",
+            "content": content
+        }
+        
+        response = requests.post(
+            f"{self.base_url}/create-note",
+            headers={**self.headers, 'Content-Type': 'application/json'},
+            json=data
+        )
+        
+        article = response.json()
+        article_id = article['note']['noteId']
+        
+        # Add tags
+        for tag in tags:
+            self.add_label(article_id, tag)
+        
+        # Add article label
+        self.add_label(article_id, "article")
+        
+        return article
+    
+    def get_or_create_category(self, name):
+        # Search for existing category
+        params = {'search': f'#category #categoryName={name}'}
+        response = requests.get(
+            f"{self.base_url}/notes",
+            headers=self.headers,
+            params=params
+        )
+        
+        results = response.json()['results']
+        if results:
+            return results[0]['noteId']
+        
+        # Create new category
+        data = {
+            "parentNoteId": "root",
+            "title": name,
+            "type": "text",
+            "content": f"<h1>{name}</h1>"
+        }
+        
+        response = requests.post(
+            f"{self.base_url}/create-note",
+            headers={**self.headers, 'Content-Type': 'application/json'},
+            json=data
+        )
+        
+        category_id = response.json()['note']['noteId']
+        
+        self.add_label(category_id, "category")
+        self.add_label(category_id, "categoryName", name)
+        
+        return category_id
+    
+    def search_articles(self, query):
+        params = {
+            'search': f'#article {query}',
+            'orderBy': 'relevancy'
+        }
+        
+        response = requests.get(
+            f"{self.base_url}/notes",
+            headers=self.headers,
+            params=params
+        )
+        
+        return response.json()['results']
+    
+    def add_label(self, note_id, name, value=""):
+        data = {
+            "noteId": note_id,
+            "type": "label",
+            "name": name,
+            "value": value
+        }
+        
+        requests.post(
+            f"{self.base_url}/attributes",
+            headers={**self.headers, 'Content-Type': 'application/json'},
+            json=data
+        )
+
+# Usage
+kb = KnowledgeBase("http://localhost:8080/etapi", "your-token")
+
+# Add articles
+article = kb.create_article(
+    category="Python",
+    title="Working with REST APIs",
+    content="""
+    <h2>Introduction</h2>
+    <p>REST APIs are fundamental to modern web development...</p>
+    <h2>Best Practices</h2>
+    <ul>
+        <li>Use proper HTTP methods</li>
+        <li>Handle errors gracefully</li>
+        <li>Implement retry logic</li>
+    </ul>
+    """,
+    tags=["api", "rest", "tutorial"]
+)
+
+# Search articles
+results = kb.search_articles("REST API")
+for article in results:
+    print(f"Found: {article['title']}")
+```
+
+## Client Library Examples
+
+### JavaScript/TypeScript Client
+
+```typescript
+class TriliumClient {
+    private baseUrl: string;
+    private token: string;
+    
+    constructor(baseUrl: string, token: string) {
+        this.baseUrl = baseUrl;
+        this.token = token;
+    }
+    
+    private async request(
+        endpoint: string, 
+        options: RequestInit = {}
+    ): Promise<any> {
+        const url = `${this.baseUrl}${endpoint}`;
+        const headers = {
+            'Authorization': this.token,
+            'Content-Type': 'application/json',
+            ...options.headers
+        };
+        
+        const response = await fetch(url, {
+            ...options,
+            headers
+        });
+        
+        if (!response.ok) {
+            const error = await response.json();
+            throw new Error(`API Error: ${error.message}`);
+        }
+        
+        if (response.status === 204) {
+            return null;
+        }
+        
+        return response.json();
+    }
+    
+    async getNote(noteId: string) {
+        return this.request(`/notes/${noteId}`);
+    }
+    
+    async createNote(data: any) {
+        return this.request('/create-note', {
+            method: 'POST',
+            body: JSON.stringify(data)
+        });
+    }
+    
+    async updateNote(noteId: string, updates: any) {
+        return this.request(`/notes/${noteId}`, {
+            method: 'PATCH',
+            body: JSON.stringify(updates)
+        });
+    }
+    
+    async deleteNote(noteId: string) {
+        return this.request(`/notes/${noteId}`, {
+            method: 'DELETE'
+        });
+    }
+    
+    async searchNotes(query: string, options: any = {}) {
+        const params = new URLSearchParams({
+            search: query,
+            ...options
+        });
+        
+        return this.request(`/notes?${params}`);
+    }
+    
+    async addAttribute(noteId: string, type: string, name: string, value = '') {
+        return this.request('/attributes', {
+            method: 'POST',
+            body: JSON.stringify({
+                noteId,
+                type,
+                name,
+                value
+            })
+        });
+    }
+}
+
+// Usage
+const client = new TriliumClient('http://localhost:8080/etapi', 'your-token');
+
+// Create a note
+const note = await client.createNote({
+    parentNoteId: 'root',
+    title: 'New Note',
+    type: 'text',
+    content: '<p>Content</p>'
+});
+
+// Search notes
+const results = await client.searchNotes('#todo', {
+    orderBy: 'dateModified',
+    orderDirection: 'desc',
+    limit: 10
+});
+
+// Add a label
+await client.addAttribute(note.note.noteId, 'label', 'important');
+```
+
+### Python Client Class
+
+```python
+import requests
+from typing import Optional, Dict, List, Any
+from datetime import datetime
+import json
+
+class TriliumETAPI:
+    """Python client for Trilium ETAPI"""
+    
+    def __init__(self, base_url: str, token: str):
+        self.base_url = base_url.rstrip('/')
+        self.session = requests.Session()
+        self.session.headers.update({
+            'Authorization': token,
+            'Content-Type': 'application/json'
+        })
+    
+    def _request(self, method: str, endpoint: str, **kwargs) -> Any:
+        """Make API request with error handling"""
+        url = f"{self.base_url}{endpoint}"
+        
+        try:
+            response = self.session.request(method, url, **kwargs)
+            response.raise_for_status()
+            
+            if response.status_code == 204:
+                return None
+            
+            return response.json() if response.content else None
+            
+        except requests.exceptions.HTTPError as e:
+            if response.text:
+                try:
+                    error = response.json()
+                    raise Exception(f"API Error {error.get('code')}: {error.get('message')}")
+                except json.JSONDecodeError:
+                    raise Exception(f"HTTP {response.status_code}: {response.text}")
+            raise e
+    
+    # Note operations
+    def create_note(
+        self,
+        parent_note_id: str,
+        title: str,
+        content: str,
+        note_type: str = "text",
+        **kwargs
+    ) -> Dict:
+        """Create a new note"""
+        data = {
+            "parentNoteId": parent_note_id,
+            "title": title,
+            "type": note_type,
+            "content": content,
+            **kwargs
+        }
+        return self._request('POST', '/create-note', json=data)
+    
+    def get_note(self, note_id: str) -> Dict:
+        """Get note by ID"""
+        return self._request('GET', f'/notes/{note_id}')
+    
+    def update_note(self, note_id: str, updates: Dict) -> Dict:
+        """Update note properties"""
+        return self._request('PATCH', f'/notes/{note_id}', json=updates)
+    
+    def delete_note(self, note_id: str) -> None:
+        """Delete a note"""
+        self._request('DELETE', f'/notes/{note_id}')
+    
+    def get_note_content(self, note_id: str) -> str:
+        """Get note content"""
+        response = self.session.get(f"{self.base_url}/notes/{note_id}/content")
+        response.raise_for_status()
+        return response.text
+    
+    def update_note_content(self, note_id: str, content: str) -> None:
+        """Update note content"""
+        headers = {'Content-Type': 'text/plain'}
+        self.session.put(
+            f"{self.base_url}/notes/{note_id}/content",
+            data=content,
+            headers=headers
+        ).raise_for_status()
+    
+    # Search
+    def search_notes(
+        self,
+        query: str,
+        fast_search: bool = False,
+        include_archived: bool = False,
+        ancestor_note_id: Optional[str] = None,
+        order_by: Optional[str] = None,
+        order_direction: str = "asc",
+        limit: Optional[int] = None
+    ) -> List[Dict]:
+        """Search for notes"""
+        params = {
+            'search': query,
+            'fastSearch': fast_search,
+            'includeArchivedNotes': include_archived
+        }
+        
+        if ancestor_note_id:
+            params['ancestorNoteId'] = ancestor_note_id
+        if order_by:
+            params['orderBy'] = order_by
+            params['orderDirection'] = order_direction
+        if limit:
+            params['limit'] = limit
+        
+        result = self._request('GET', '/notes', params=params)
+        return result.get('results', [])
+    
+    # Attributes
+    def add_label(
+        self,
+        note_id: str,
+        name: str,
+        value: str = "",
+        inheritable: bool = False
+    ) -> Dict:
+        """Add a label to a note"""
+        data = {
+            "noteId": note_id,
+            "type": "label",
+            "name": name,
+            "value": value,
+            "isInheritable": inheritable
+        }
+        return self._request('POST', '/attributes', json=data)
+    
+    def add_relation(
+        self,
+        note_id: str,
+        name: str,
+        target_note_id: str,
+        inheritable: bool = False
+    ) -> Dict:
+        """Add a relation to a note"""
+        data = {
+            "noteId": note_id,
+            "type": "relation",
+            "name": name,
+            "value": target_note_id,
+            "isInheritable": inheritable
+        }
+        return self._request('POST', '/attributes', json=data)
+    
+    def update_attribute(self, attribute_id: str, updates: Dict) -> Dict:
+        """Update an attribute"""
+        return self._request('PATCH', f'/attributes/{attribute_id}', json=updates)
+    
+    def delete_attribute(self, attribute_id: str) -> None:
+        """Delete an attribute"""
+        self._request('DELETE', f'/attributes/{attribute_id}')
+    
+    # Branches
+    def clone_note(
+        self,
+        note_id: str,
+        parent_note_id: str,
+        prefix: str = ""
+    ) -> Dict:
+        """Clone a note to another location"""
+        data = {
+            "noteId": note_id,
+            "parentNoteId": parent_note_id,
+            "prefix": prefix
+        }
+        return self._request('POST', '/branches', json=data)
+    
+    def move_note(
+        self,
+        note_id: str,
+        new_parent_id: str
+    ) -> None:
+        """Move a note to a new parent"""
+        # Get current branches
+        note = self.get_note(note_id)
+        
+        # Delete old branches
+        for branch_id in note['parentBranchIds']:
+            self._request('DELETE', f'/branches/{branch_id}')
+        
+        # Create new branch
+        self.clone_note(note_id, new_parent_id)
+    
+    # Special notes
+    def get_inbox(self, date: Optional[datetime] = None) -> Dict:
+        """Get inbox note for a date"""
+        if date is None:
+            date = datetime.now()
+        date_str = date.strftime('%Y-%m-%d')
+        return self._request('GET', f'/inbox/{date_str}')
+    
+    def get_day_note(self, date: Optional[datetime] = None) -> Dict:
+        """Get day note for a date"""
+        if date is None:
+            date = datetime.now()
+        date_str = date.strftime('%Y-%m-%d')
+        return self._request('GET', f'/calendar/days/{date_str}')
+    
+    # Utility
+    def get_app_info(self) -> Dict:
+        """Get application information"""
+        return self._request('GET', '/app-info')
+    
+    def create_backup(self, name: str) -> None:
+        """Create a backup"""
+        self._request('PUT', f'/backup/{name}')
+    
+    def export_subtree(
+        self,
+        note_id: str,
+        format: str = "html"
+    ) -> bytes:
+        """Export note subtree as ZIP"""
+        params = {'format': format}
+        response = self.session.get(
+            f"{self.base_url}/notes/{note_id}/export",
+            params=params
+        )
+        response.raise_for_status()
+        return response.content
+
+# Example usage
+if __name__ == "__main__":
+    # Initialize client
+    api = TriliumETAPI("http://localhost:8080/etapi", "your-token")
+    
+    # Create a note
+    note = api.create_note(
+        parent_note_id="root",
+        title="API Test Note",
+        content="<p>Created via Python client</p>"
+    )
+    print(f"Created note: {note['note']['noteId']}")
+    
+    # Add labels
+    api.add_label(note['note']['noteId'], "test")
+    api.add_label(note['note']['noteId'], "priority", "high")
+    
+    # Search
+    results = api.search_notes("#test", limit=10)
+    for result in results:
+        print(f"Found: {result['title']}")
+    
+    # Export backup
+    backup_data = api.export_subtree("root")
+    with open("backup.zip", "wb") as f:
+        f.write(backup_data)
+```
+
+## Rate Limiting and Best Practices
+
+### Rate Limiting
+
+ETAPI implements rate limiting for authentication endpoints:
+
+*   **Login endpoint**: Maximum 10 requests per IP per hour
+*   **Other endpoints**: No specific rate limits, but excessive requests may be throttled
+
+### Best Practices
+
+#### 1\. Connection Pooling
+
+Reuse HTTP connections for better performance:
+
+```python
+import requests
+from requests.adapters import HTTPAdapter
+from requests.packages.urllib3.util.retry import Retry
+
+session = requests.Session()
+retry = Retry(
+    total=3,
+    backoff_factor=0.3,
+    status_forcelist=[500, 502, 503, 504]
+)
+adapter = HTTPAdapter(max_retries=retry)
+session.mount('http://', adapter)
+session.mount('https://', adapter)
+```
+
+#### 2\. Batch Operations
+
+When possible, batch multiple operations:
+
+```python
+def batch_create_notes(notes_data):
+    """Create multiple notes efficiently"""
+    created_notes = []
+    
+    for data in notes_data:
+        note = api.create_note(**data)
+        created_notes.append(note)
+        
+        # Add small delay to avoid overwhelming server
+        time.sleep(0.1)
+    
+    return created_notes
+```
+
+#### 3\. Error Handling
+
+Implement robust error handling:
+
+```python
+import time
+from typing import Callable, Any
+
+def retry_on_error(
+    func: Callable,
+    max_retries: int = 3,
+    backoff_factor: float = 1.0
+) -> Any:
+    """Retry function with exponential backoff"""
+    for attempt in range(max_retries):
+        try:
+            return func()
+        except requests.exceptions.RequestException as e:
+            if attempt == max_retries - 1:
+                raise
+            
+            wait_time = backoff_factor * (2 ** attempt)
+            print(f"Request failed, retrying in {wait_time}s...")
+            time.sleep(wait_time)
+
+# Usage
+note = retry_on_error(
+    lambda: api.create_note("root", "Title", "Content")
+)
+```
+
+#### 4\. Caching
+
+Cache frequently accessed data:
+
+```python
+from functools import lru_cache
+from datetime import datetime, timedelta
+
+class CachedTriliumClient(TriliumETAPI):
+    def __init__(self, base_url: str, token: str):
+        super().__init__(base_url, token)
+        self._cache = {}
+        self._cache_times = {}
+    
+    def get_note_cached(self, note_id: str, max_age: int = 300):
+        """Get note with caching (max_age in seconds)"""
+        cache_key = f"note:{note_id}"
+        
+        if cache_key in self._cache:
+            cache_time = self._cache_times[cache_key]
+            if datetime.now() - cache_time < timedelta(seconds=max_age):
+                return self._cache[cache_key]
+        
+        note = self.get_note(note_id)
+        self._cache[cache_key] = note
+        self._cache_times[cache_key] = datetime.now()
+        
+        return note
+```
+
+#### 5\. Pagination for Large Results
+
+Handle large result sets with pagination:
+
+```python
+def search_all_notes(api: TriliumETAPI, query: str, batch_size: int = 100):
+    """Search with pagination for large result sets"""
+    all_results = []
+    offset = 0
+    
+    while True:
+        results = api.search_notes(
+            query,
+            limit=batch_size,
+            order_by="dateCreated"
+        )
+        
+        if not results:
+            break
+        
+        all_results.extend(results)
+        
+        if len(results) < batch_size:
+            break
+        
+        # Use the last note's date as reference for next batch
+        last_date = results[-1]['dateCreated']
+        query_with_date = f"{query} dateCreated>{last_date}"
+        
+    return all_results
+```
+
+## Migration from Internal API
+
+### Key Differences
+
+| Aspect | Internal API | ETAPI |
+| --- | --- | --- |
+| **Purpose** | Trilium client communication | External integrations |
+| **Authentication** | Session-based | Token-based |
+| **Stability** | May change between versions | Stable interface |
+| **CSRF Protection** | Required | Not required |
+| **WebSocket** | Supported | Not available |
+| **Documentation** | Limited | Comprehensive |
+
+### Migration Steps
+
+1.  **Replace Authentication**
+    
+    ```python
+    # Old (Internal API)
+    session = requests.Session()
+    session.post('/api/login', data={'password': 'pass'})
+    
+    # New (ETAPI)
+    headers = {'Authorization': 'etapi-token'}
+    ```
+2.  **Update Endpoints**
+    
+    ```python
+    # Old
+    /api/notes/getNoteById/noteId
+    
+    # New
+    /etapi/notes/noteId
+    ```
+3.  **Adjust Request/Response Format**
+    
+    ```python
+    # Old (may vary)
+    response = session.post('/api/notes/new', json={
+        'parentNoteId': 'root',
+        'title': 'Title'
+    })
+    
+    # New (standardized)
+    response = requests.post('/etapi/create-note', 
+        headers=headers,
+        json={
+            'parentNoteId': 'root',
+            'title': 'Title',
+            'type': 'text',
+            'content': ''
+        }
+    )
+    ```
+
+## Error Handling
+
+### Common Error Codes
+
+| Status | Code | Description | Resolution |
+| --- | --- | --- | --- |
+| 400 | BAD\_REQUEST | Invalid request format | Check request body and parameters |
+| 401 | UNAUTHORIZED | Invalid or missing token | Verify authentication token |
+| 404 | NOTE\_NOT\_FOUND | Note doesn't exist | Check note ID |
+| 404 | BRANCH\_NOT\_FOUND | Branch doesn't exist | Verify branch ID |
+| 400 | NOTE\_IS\_PROTECTED | Cannot modify protected note | Unlock protected session first |
+| 429 | TOO\_MANY\_REQUESTS | Rate limit exceeded | Wait before retrying |
+| 500 | INTERNAL\_ERROR | Server error | Report issue, check logs |
+
+### Error Response Format
+
+```json
+{
+  "status": 400,
+  "code": "VALIDATION_ERROR",
+  "message": "Note title cannot be empty"
+}
+```
+
+### Handling Errors in Code
+
+```python
+class ETAPIError(Exception):
+    def __init__(self, status, code, message):
+        self.status = status
+        self.code = code
+        self.message = message
+        super().__init__(f"{code}: {message}")
+
+def handle_api_response(response):
+    if response.status_code >= 400:
+        try:
+            error = response.json()
+            raise ETAPIError(
+                error.get('status'),
+                error.get('code'),
+                error.get('message')
+            )
+        except json.JSONDecodeError:
+            raise ETAPIError(
+                response.status_code,
+                'UNKNOWN_ERROR',
+                response.text
+            )
+    
+    return response.json() if response.content else None
+
+# Usage
+try:
+    response = requests.get(
+        'http://localhost:8080/etapi/notes/invalid',
+        headers={'Authorization': 'token'}
+    )
+    note = handle_api_response(response)
+except ETAPIError as e:
+    if e.code == 'NOTE_NOT_FOUND':
+        print("Note doesn't exist")
+    else:
+        print(f"API Error: {e.message}")
+```
+
+## Performance Considerations
+
+### 1\. Minimize API Calls
+
+```python
+# Bad: Multiple calls
+note = api.get_note(note_id)
+for child_id in note['childNoteIds']:
+    child = api.get_note(child_id)  # N+1 problem
+    process(child)
+
+# Good: Batch processing
+note = api.get_note(note_id)
+children = api.search_notes(
+    f"note.parents.noteId={note_id}",
+    limit=1000
+)
+for child in children:
+    process(child)
+```
+
+### 2\. Use Appropriate Search Depth
+
+```python
+# Limit search depth for better performance
+results = api.search_notes(
+    "keyword",
+    ancestor_note_id="root",
+    ancestor_depth="lt3"  # Only search 3 levels deep
+)
+```
+
+### 3\. Content Compression
+
+Enable gzip compression for large responses:
+
+```python
+session = requests.Session()
+session.headers.update({
+    'Authorization': 'token',
+    'Accept-Encoding': 'gzip, deflate'
+})
+```
+
+### 4\. Async Operations
+
+Use async requests for parallel operations:
+
+```python
+import asyncio
+import aiohttp
+
+class AsyncTriliumClient:
+    def __init__(self, base_url: str, token: str):
+        self.base_url = base_url
+        self.headers = {'Authorization': token}
+    
+    async def get_note(self, session, note_id):
+        url = f"{self.base_url}/notes/{note_id}"
+        async with session.get(url, headers=self.headers) as response:
+            return await response.json()
+    
+    async def get_multiple_notes(self, note_ids):
+        async with aiohttp.ClientSession() as session:
+            tasks = [self.get_note(session, nid) for nid in note_ids]
+            return await asyncio.gather(*tasks)
+
+# Usage
+client = AsyncTriliumClient("http://localhost:8080/etapi", "token")
+notes = asyncio.run(client.get_multiple_notes(['id1', 'id2', 'id3']))
+```
+
+### 5\. Database Optimization
+
+For bulk operations, consider:
+
+*   Creating notes in batches
+*   Using transactions (via backup/restore)
+*   Indexing frequently searched attributes
+
+## Security Considerations
+
+### Token Management
+
+*   Store tokens securely (environment variables, key vaults)
+*   Rotate tokens regularly
+*   Use separate tokens for different applications
+*   Never commit tokens to version control
+
+```python
+import os
+from dotenv import load_dotenv
+
+load_dotenv()
+
+# Load token from environment
+TOKEN = os.getenv('TRILIUM_ETAPI_TOKEN')
+if not TOKEN:
+    raise ValueError("TRILIUM_ETAPI_TOKEN not set")
+
+api = TriliumETAPI("http://localhost:8080/etapi", TOKEN)
+```
+
+### HTTPS Usage
+
+Always use HTTPS in production:
+
+```python
+# Development
+dev_api = TriliumETAPI("http://localhost:8080/etapi", token)
+
+# Production
+prod_api = TriliumETAPI("https://notes.example.com/etapi", token)
+```
+
+### Input Validation
+
+Sanitize user input before sending to API:
+
+```python
+import html
+import re
+
+def sanitize_html(content: str) -> str:
+    """Basic HTML sanitization"""
+    # Remove script tags
+    content = re.sub(r'<script[^>]*>.*?</script>', '', content, flags=re.DOTALL)
+    # Remove on* attributes
+    content = re.sub(r'\s*on\w+\s*=\s*["\'][^"\']*["\']', '', content)
+    return content
+
+def create_safe_note(title: str, content: str):
+    safe_title = html.escape(title)
+    safe_content = sanitize_html(content)
+    
+    return api.create_note(
+        parent_note_id="root",
+        title=safe_title,
+        content=safe_content
+    )
+```
+
+## Troubleshooting
+
+### Connection Issues
+
+```python
+# Test connection
+def test_connection(base_url, token):
+    try:
+        api = TriliumETAPI(base_url, token)
+        info = api.get_app_info()
+        print(f"Connected to Trilium {info['appVersion']}")
+        return True
+    except Exception as e:
+        print(f"Connection failed: {e}")
+        return False
+
+# Debug mode
+import logging
+logging.basicConfig(level=logging.DEBUG)
+```
+
+### Common Issues and Solutions
+
+| Issue | Cause | Solution |
+| --- | --- | --- |
+| 401 Unauthorized | Invalid token | Regenerate token in Trilium Options |
+| Connection refused | Server not running | Start Trilium server |
+| CORS errors | Cross-origin requests | Configure CORS in Trilium settings |
+| Timeout errors | Large operations | Increase timeout, use async |
+| 404 Not Found | Wrong endpoint | Check ETAPI prefix in URL |
+| Protected note error | Note is encrypted | Enter protected session first |
+
+## Additional Resources
+
+*   [Trilium GitHub Repository](https://github.com/TriliumNext/Trilium)
+*   [OpenAPI Specification](#root/euAWtBArCWdw)
+*   [Trilium Search Documentation](https://triliumnext.github.io/Docs/Wiki/search.html)
+*   [Community Forum](https://github.com/TriliumNext/Trilium/discussions)
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/API Documentation/Internal API Reference.md b/docs/Developer Guide/Developer Guide/API Documentation/Internal API Reference.md
new file mode 100644
index 0000000000..a397b113d8
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/API Documentation/Internal API Reference.md	
@@ -0,0 +1,1926 @@
+# Internal API Reference
+## Table of Contents
+
+1.  [Introduction](#introduction)
+2.  [Authentication and Session Management](#authentication-and-session-management)
+3.  [Core API Endpoints](#core-api-endpoints)
+4.  [WebSocket Real-time Updates](#websocket-real-time-updates)
+5.  [File Operations](#file-operations)
+6.  [Import/Export Operations](#import-export-operations)
+7.  [Synchronization API](#synchronization-api)
+8.  [When to Use Internal vs ETAPI](#when-to-use-internal-vs-etapi)
+9.  [Security Considerations](#security-considerations)
+
+## Introduction
+
+The Internal API is the primary interface used by the Trilium Notes client application to communicate with the server. While powerful and feature-complete, this API is primarily designed for internal use.
+
+### Important Notice
+
+**For external integrations, please use [ETAPI](ETAPI%20Complete%20Guide.md) instead.** The Internal API:
+
+*   May change between versions without notice
+*   Requires session-based authentication with CSRF protection
+*   Is tightly coupled with the frontend application
+*   Has limited documentation and stability guarantees
+
+### Base URL
+
+```
+http://localhost:8080/api
+```
+
+### Key Characteristics
+
+*   Session-based authentication with cookies
+*   CSRF token protection for state-changing operations
+*   WebSocket support for real-time updates
+*   Full feature parity with the Trilium UI
+*   Complex request/response formats optimized for the client
+
+## Authentication and Session Management
+
+### Password Login
+
+**POST** `/api/login`
+
+Authenticates user with password and creates a session.
+
+**Request:**
+
+```javascript
+const formData = new URLSearchParams();
+formData.append('password', 'your-password');
+
+const response = await fetch('http://localhost:8080/api/login', {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/x-www-form-urlencoded'
+    },
+    body: formData,
+    credentials: 'include'  // Important for cookie handling
+});
+```
+
+**Response:**
+
+```json
+{
+    "success": true,
+    "message": "Login successful"
+}
+```
+
+The server sets a session cookie (`trilium.sid`) that must be included in subsequent requests.
+
+### TOTP Authentication (2FA)
+
+If 2FA is enabled, include the TOTP token:
+
+```javascript
+formData.append('password', 'your-password');
+formData.append('totpToken', '123456');
+```
+
+### Token Authentication
+
+**POST** `/api/login/token`
+
+Generate an API token for programmatic access:
+
+```javascript
+const response = await fetch('http://localhost:8080/api/login/token', {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json'
+    },
+    body: JSON.stringify({
+        password: 'your-password',
+        tokenName: 'My Integration'
+    })
+});
+
+const { authToken } = await response.json();
+// Use this token in Authorization header for future requests
+```
+
+### Protected Session
+
+**POST** `/api/login/protected`
+
+Enter protected session to access encrypted notes:
+
+```javascript
+await fetch('http://localhost:8080/api/login/protected', {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        password: 'your-password'
+    }),
+    credentials: 'include'
+});
+```
+
+### Logout
+
+**POST** `/api/logout`
+
+```javascript
+await fetch('http://localhost:8080/api/logout', {
+    method: 'POST',
+    headers: {
+        'X-CSRF-Token': csrfToken
+    },
+    credentials: 'include'
+});
+```
+
+## Core API Endpoints
+
+### Notes
+
+#### Get Note
+
+**GET** `/api/notes/{noteId}`
+
+```javascript
+const response = await fetch('http://localhost:8080/api/notes/root', {
+    credentials: 'include'
+});
+
+const note = await response.json();
+```
+
+**Response:**
+
+```json
+{
+    "noteId": "root",
+    "title": "Trilium Notes",
+    "type": "text",
+    "mime": "text/html",
+    "isProtected": false,
+    "isDeleted": false,
+    "dateCreated": "2024-01-01 00:00:00.000+0000",
+    "dateModified": "2024-01-15 10:30:00.000+0000",
+    "utcDateCreated": "2024-01-01 00:00:00.000Z",
+    "utcDateModified": "2024-01-15 10:30:00.000Z",
+    "parentBranches": [
+        {
+            "branchId": "root_root",
+            "parentNoteId": "none",
+            "prefix": null,
+            "notePosition": 10
+        }
+    ],
+    "attributes": [],
+    "cssClass": "",
+    "iconClass": "bx bx-folder"
+}
+```
+
+#### Create Note
+
+**POST** `/api/notes/{parentNoteId}/children`
+
+```javascript
+const response = await fetch('http://localhost:8080/api/notes/root/children', {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        title: 'New Note',
+        type: 'text',
+        content: '<p>Note content</p>',
+        isProtected: false
+    }),
+    credentials: 'include'
+});
+
+const { note, branch } = await response.json();
+```
+
+#### Update Note
+
+**PUT** `/api/notes/{noteId}`
+
+```javascript
+await fetch(`http://localhost:8080/api/notes/${noteId}`, {
+    method: 'PUT',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        title: 'Updated Title',
+        type: 'text',
+        mime: 'text/html'
+    }),
+    credentials: 'include'
+});
+```
+
+#### Delete Note
+
+**DELETE** `/api/notes/{noteId}`
+
+```javascript
+await fetch(`http://localhost:8080/api/notes/${noteId}`, {
+    method: 'DELETE',
+    headers: {
+        'X-CSRF-Token': csrfToken
+    },
+    credentials: 'include'
+});
+```
+
+#### Get Note Content
+
+**GET** `/api/notes/{noteId}/content`
+
+Returns the actual content of the note:
+
+```javascript
+const response = await fetch(`http://localhost:8080/api/notes/${noteId}/content`, {
+    credentials: 'include'
+});
+
+const content = await response.text();
+```
+
+#### Save Note Content
+
+**PUT** `/api/notes/{noteId}/content`
+
+```javascript
+await fetch(`http://localhost:8080/api/notes/${noteId}/content`, {
+    method: 'PUT',
+    headers: {
+        'Content-Type': 'text/html',
+        'X-CSRF-Token': csrfToken
+    },
+    body: '<p>Updated content</p>',
+    credentials: 'include'
+});
+```
+
+### Tree Operations
+
+#### Get Branch
+
+**GET** `/api/branches/{branchId}`
+
+```javascript
+const branch = await fetch(`http://localhost:8080/api/branches/${branchId}`, {
+    credentials: 'include'
+}).then(r => r.json());
+```
+
+#### Move Note
+
+**PUT** `/api/branches/{branchId}/move`
+
+```javascript
+await fetch(`http://localhost:8080/api/branches/${branchId}/move`, {
+    method: 'PUT',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        parentNoteId: 'newParentId',
+        beforeNoteId: 'siblingNoteId'  // optional, for positioning
+    }),
+    credentials: 'include'
+});
+```
+
+#### Clone Note
+
+**POST** `/api/notes/{noteId}/clone`
+
+```javascript
+const response = await fetch(`http://localhost:8080/api/notes/${noteId}/clone`, {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        parentNoteId: 'targetParentId',
+        prefix: 'Copy of '
+    }),
+    credentials: 'include'
+});
+```
+
+#### Sort Child Notes
+
+**PUT** `/api/notes/{noteId}/sort-children`
+
+```javascript
+await fetch(`http://localhost:8080/api/notes/${noteId}/sort-children`, {
+    method: 'PUT',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        sortBy: 'title',  // or 'dateCreated', 'dateModified'
+        reverse: false
+    }),
+    credentials: 'include'
+});
+```
+
+### Attributes
+
+#### Create Attribute
+
+**POST** `/api/notes/{noteId}/attributes`
+
+```javascript
+const response = await fetch(`http://localhost:8080/api/notes/${noteId}/attributes`, {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        type: 'label',
+        name: 'todo',
+        value: '',
+        isInheritable: false
+    }),
+    credentials: 'include'
+});
+```
+
+#### Update Attribute
+
+**PUT** `/api/attributes/{attributeId}`
+
+```javascript
+await fetch(`http://localhost:8080/api/attributes/${attributeId}`, {
+    method: 'PUT',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        value: 'updated value'
+    }),
+    credentials: 'include'
+});
+```
+
+#### Delete Attribute
+
+**DELETE** `/api/attributes/{attributeId}`
+
+```javascript
+await fetch(`http://localhost:8080/api/attributes/${attributeId}`, {
+    method: 'DELETE',
+    headers: {
+        'X-CSRF-Token': csrfToken
+    },
+    credentials: 'include'
+});
+```
+
+### Search
+
+#### Search Notes
+
+**GET** `/api/search`
+
+```javascript
+const params = new URLSearchParams({
+    query: '#todo OR #task',
+    fastSearch: 'false',
+    includeArchivedNotes: 'false',
+    ancestorNoteId: 'root',
+    orderBy: 'relevancy',
+    orderDirection: 'desc',
+    limit: '50'
+});
+
+const response = await fetch(`http://localhost:8080/api/search?${params}`, {
+    credentials: 'include'
+});
+
+const { results } = await response.json();
+```
+
+#### Search Note Map
+
+**GET** `/api/search-note-map`
+
+Returns hierarchical structure of search results:
+
+```javascript
+const params = new URLSearchParams({
+    query: 'project',
+    maxDepth: '3'
+});
+
+const noteMap = await fetch(`http://localhost:8080/api/search-note-map?${params}`, {
+    credentials: 'include'
+}).then(r => r.json());
+```
+
+### Revisions
+
+#### Get Note Revisions
+
+**GET** `/api/notes/{noteId}/revisions`
+
+```javascript
+const revisions = await fetch(`http://localhost:8080/api/notes/${noteId}/revisions`, {
+    credentials: 'include'
+}).then(r => r.json());
+```
+
+#### Get Revision Content
+
+**GET** `/api/revisions/{revisionId}/content`
+
+```javascript
+const content = await fetch(`http://localhost:8080/api/revisions/${revisionId}/content`, {
+    credentials: 'include'
+}).then(r => r.text());
+```
+
+#### Restore Revision
+
+**POST** `/api/revisions/{revisionId}/restore`
+
+```javascript
+await fetch(`http://localhost:8080/api/revisions/${revisionId}/restore`, {
+    method: 'POST',
+    headers: {
+        'X-CSRF-Token': csrfToken
+    },
+    credentials: 'include'
+});
+```
+
+#### Delete Revision
+
+**DELETE** `/api/revisions/{revisionId}`
+
+```javascript
+await fetch(`http://localhost:8080/api/revisions/${revisionId}`, {
+    method: 'DELETE',
+    headers: {
+        'X-CSRF-Token': csrfToken
+    },
+    credentials: 'include'
+});
+```
+
+## WebSocket Real-time Updates
+
+The Internal API provides WebSocket connections for real-time synchronization and updates.
+
+### Connection Setup
+
+```javascript
+class TriliumWebSocket {
+    constructor() {
+        this.ws = null;
+        this.reconnectInterval = 5000;
+        this.shouldReconnect = true;
+    }
+    
+    connect() {
+        // WebSocket URL same as base URL but with ws:// protocol
+        const wsUrl = 'ws://localhost:8080';
+        
+        this.ws = new WebSocket(wsUrl);
+        
+        this.ws.onopen = () => {
+            console.log('WebSocket connected');
+            this.sendPing();
+        };
+        
+        this.ws.onmessage = (event) => {
+            const message = JSON.parse(event.data);
+            this.handleMessage(message);
+        };
+        
+        this.ws.onerror = (error) => {
+            console.error('WebSocket error:', error);
+        };
+        
+        this.ws.onclose = () => {
+            console.log('WebSocket disconnected');
+            if (this.shouldReconnect) {
+                setTimeout(() => this.connect(), this.reconnectInterval);
+            }
+        };
+    }
+    
+    handleMessage(message) {
+        switch (message.type) {
+            case 'sync':
+                this.handleSync(message.data);
+                break;
+            case 'entity-changes':
+                this.handleEntityChanges(message.data);
+                break;
+            case 'refresh-tree':
+                this.refreshTree();
+                break;
+            case 'create-note':
+                this.handleNoteCreated(message.data);
+                break;
+            case 'update-note':
+                this.handleNoteUpdated(message.data);
+                break;
+            case 'delete-note':
+                this.handleNoteDeleted(message.data);
+                break;
+            default:
+                console.log('Unknown message type:', message.type);
+        }
+    }
+    
+    sendPing() {
+        if (this.ws.readyState === WebSocket.OPEN) {
+            this.ws.send(JSON.stringify({ type: 'ping' }));
+            setTimeout(() => this.sendPing(), 30000); // Ping every 30 seconds
+        }
+    }
+    
+    send(type, data) {
+        if (this.ws.readyState === WebSocket.OPEN) {
+            this.ws.send(JSON.stringify({ type, data }));
+        }
+    }
+    
+    handleSync(data) {
+        // Handle synchronization data
+        console.log('Sync data received:', data);
+    }
+    
+    handleEntityChanges(changes) {
+        // Handle entity change notifications
+        changes.forEach(change => {
+            console.log(`Entity ${change.entityName} ${change.entityId} changed`);
+        });
+    }
+    
+    refreshTree() {
+        // Refresh the note tree UI
+        console.log('Tree refresh requested');
+    }
+    
+    handleNoteCreated(note) {
+        console.log('Note created:', note);
+    }
+    
+    handleNoteUpdated(note) {
+        console.log('Note updated:', note);
+    }
+    
+    handleNoteDeleted(noteId) {
+        console.log('Note deleted:', noteId);
+    }
+    
+    disconnect() {
+        this.shouldReconnect = false;
+        if (this.ws) {
+            this.ws.close();
+        }
+    }
+}
+
+// Usage
+const ws = new TriliumWebSocket();
+ws.connect();
+
+// Send custom message
+ws.send('log-info', { info: 'Client started' });
+
+// Clean up on page unload
+window.addEventListener('beforeunload', () => {
+    ws.disconnect();
+});
+```
+
+### Message Types
+
+#### Incoming Messages
+
+| Type | Description | Data Format |
+| --- | --- | --- |
+| `sync` | Synchronization data | `{ entityChanges: [], lastSyncedPush: number }` |
+| `entity-changes` | Entity modifications | `[{ entityName, entityId, action }]` |
+| `refresh-tree` | Tree structure changed | None |
+| `create-note` | Note created | Note object |
+| `update-note` | Note updated | Note object |
+| `delete-note` | Note deleted | `{ noteId }` |
+| `frontend-script` | Execute frontend script | `{ script, params }` |
+
+#### Outgoing Messages
+
+| Type | Description | Data Format |
+| --- | --- | --- |
+| `ping` | Keep connection alive | None |
+| `log-error` | Log client error | `{ error, stack }` |
+| `log-info` | Log client info | `{ info }` |
+
+### Real-time Collaboration Example
+
+```javascript
+class CollaborativeEditor {
+    constructor(noteId) {
+        this.noteId = noteId;
+        this.ws = new TriliumWebSocket();
+        this.content = '';
+        this.lastSaved = '';
+        
+        this.ws.handleNoteUpdated = (note) => {
+            if (note.noteId === this.noteId) {
+                this.handleRemoteUpdate(note);
+            }
+        };
+    }
+    
+    async loadNote() {
+        const response = await fetch(`/api/notes/${this.noteId}/content`, {
+            credentials: 'include'
+        });
+        this.content = await response.text();
+        this.lastSaved = this.content;
+    }
+    
+    handleRemoteUpdate(note) {
+        // Check if the update is from another client
+        if (this.content !== this.lastSaved) {
+            // Show conflict resolution UI
+            this.showConflictDialog(note);
+        } else {
+            // Apply remote changes
+            this.loadNote();
+        }
+    }
+    
+    async saveContent(content) {
+        this.content = content;
+        
+        await fetch(`/api/notes/${this.noteId}/content`, {
+            method: 'PUT',
+            headers: {
+                'Content-Type': 'text/html',
+                'X-CSRF-Token': csrfToken
+            },
+            body: content,
+            credentials: 'include'
+        });
+        
+        this.lastSaved = content;
+    }
+    
+    showConflictDialog(remoteNote) {
+        // Implementation of conflict resolution UI
+        console.log('Conflict detected with remote changes');
+    }
+}
+```
+
+## File Operations
+
+### Upload File
+
+**POST** `/api/notes/{noteId}/attachments/upload`
+
+```javascript
+const formData = new FormData();
+formData.append('file', fileInput.files[0]);
+
+const response = await fetch(`/api/notes/${noteId}/attachments/upload`, {
+    method: 'POST',
+    headers: {
+        'X-CSRF-Token': csrfToken
+    },
+    body: formData,
+    credentials: 'include'
+});
+
+const attachment = await response.json();
+```
+
+### Download Attachment
+
+**GET** `/api/attachments/{attachmentId}/download`
+
+```javascript
+const response = await fetch(`/api/attachments/${attachmentId}/download`, {
+    credentials: 'include'
+});
+
+const blob = await response.blob();
+const url = URL.createObjectURL(blob);
+const a = document.createElement('a');
+a.href = url;
+a.download = 'attachment.pdf';
+a.click();
+```
+
+### Upload Image
+
+**POST** `/api/images/upload`
+
+```javascript
+const formData = new FormData();
+formData.append('image', imageFile);
+formData.append('noteId', noteId);
+
+const response = await fetch('/api/images/upload', {
+    method: 'POST',
+    headers: {
+        'X-CSRF-Token': csrfToken
+    },
+    body: formData,
+    credentials: 'include'
+});
+
+const { url, noteId: imageNoteId } = await response.json();
+```
+
+## Import/Export Operations
+
+### Import ZIP
+
+**POST** `/api/import`
+
+```javascript
+const formData = new FormData();
+formData.append('file', zipFile);
+formData.append('parentNoteId', 'root');
+
+const response = await fetch('/api/import', {
+    method: 'POST',
+    headers: {
+        'X-CSRF-Token': csrfToken
+    },
+    body: formData,
+    credentials: 'include'
+});
+
+const result = await response.json();
+```
+
+### Export Subtree
+
+**GET** `/api/notes/{noteId}/export`
+
+```javascript
+const params = new URLSearchParams({
+    format: 'html',  // or 'markdown'
+    exportRevisions: 'true'
+});
+
+const response = await fetch(`/api/notes/${noteId}/export?${params}`, {
+    credentials: 'include'
+});
+
+const blob = await response.blob();
+const url = URL.createObjectURL(blob);
+const a = document.createElement('a');
+a.href = url;
+a.download = 'export.zip';
+a.click();
+```
+
+### Import Markdown
+
+**POST** `/api/import/markdown`
+
+```javascript
+const response = await fetch('/api/import/markdown', {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        parentNoteId: 'root',
+        content: '# Markdown Content\n\nParagraph text...',
+        title: 'Imported from Markdown'
+    }),
+    credentials: 'include'
+});
+```
+
+### Export as PDF
+
+**GET** `/api/notes/{noteId}/export/pdf`
+
+```javascript
+const response = await fetch(`/api/notes/${noteId}/export/pdf`, {
+    credentials: 'include'
+});
+
+const blob = await response.blob();
+const url = URL.createObjectURL(blob);
+window.open(url, '_blank');
+```
+
+## Synchronization API
+
+### Get Sync Status
+
+**GET** `/api/sync/status`
+
+```javascript
+const status = await fetch('/api/sync/status', {
+    credentials: 'include'
+}).then(r => r.json());
+
+console.log('Sync enabled:', status.syncEnabled);
+console.log('Last sync:', status.lastSyncedPush);
+```
+
+### Force Sync
+
+**POST** `/api/sync/now`
+
+```javascript
+await fetch('/api/sync/now', {
+    method: 'POST',
+    headers: {
+        'X-CSRF-Token': csrfToken
+    },
+    credentials: 'include'
+});
+```
+
+### Get Sync Log
+
+**GET** `/api/sync/log`
+
+```javascript
+const log = await fetch('/api/sync/log', {
+    credentials: 'include'
+}).then(r => r.json());
+
+log.forEach(entry => {
+    console.log(`${entry.date}: ${entry.message}`);
+});
+```
+
+## Script Execution
+
+### Execute Script
+
+**POST** `/api/script/run`
+
+```javascript
+const response = await fetch('/api/script/run', {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        script: `
+            const note = await api.getNote('root');
+            return { title: note.title, children: note.children.length };
+        `,
+        params: {}
+    }),
+    credentials: 'include'
+});
+
+const result = await response.json();
+```
+
+### Execute Note Script
+
+**POST** `/api/notes/{noteId}/run`
+
+Run a script note:
+
+```javascript
+const response = await fetch(`/api/notes/${scriptNoteId}/run`, {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        params: {
+            targetNoteId: 'someNoteId'
+        }
+    }),
+    credentials: 'include'
+});
+
+const result = await response.json();
+```
+
+## Special Features
+
+### Calendar API
+
+#### Get Day Note
+
+**GET** `/api/calendar/days/{date}`
+
+```javascript
+const date = '2024-01-15';
+const dayNote = await fetch(`/api/calendar/days/${date}`, {
+    credentials: 'include'
+}).then(r => r.json());
+```
+
+#### Get Week Note
+
+**GET** `/api/calendar/weeks/{date}`
+
+```javascript
+const weekNote = await fetch(`/api/calendar/weeks/2024-01-15`, {
+    credentials: 'include'
+}).then(r => r.json());
+```
+
+#### Get Month Note
+
+**GET** `/api/calendar/months/{month}`
+
+```javascript
+const monthNote = await fetch(`/api/calendar/months/2024-01`, {
+    credentials: 'include'
+}).then(r => r.json());
+```
+
+### Inbox Note
+
+**GET** `/api/inbox/{date}`
+
+```javascript
+const inboxNote = await fetch(`/api/inbox/2024-01-15`, {
+    credentials: 'include'
+}).then(r => r.json());
+```
+
+### Note Map
+
+**GET** `/api/notes/{noteId}/map`
+
+Get visual map data for a note:
+
+```javascript
+const mapData = await fetch(`/api/notes/${noteId}/map`, {
+    credentials: 'include'
+}).then(r => r.json());
+
+// Returns nodes and links for visualization
+console.log('Nodes:', mapData.nodes);
+console.log('Links:', mapData.links);
+```
+
+### Similar Notes
+
+**GET** `/api/notes/{noteId}/similar`
+
+Find notes similar to the given note:
+
+```javascript
+const similarNotes = await fetch(`/api/notes/${noteId}/similar`, {
+    credentials: 'include'
+}).then(r => r.json());
+```
+
+## Options and Configuration
+
+### Get All Options
+
+**GET** `/api/options`
+
+```javascript
+const options = await fetch('/api/options', {
+    credentials: 'include'
+}).then(r => r.json());
+```
+
+### Update Option
+
+**PUT** `/api/options/{optionName}`
+
+```javascript
+await fetch(`/api/options/theme`, {
+    method: 'PUT',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        value: 'dark'
+    }),
+    credentials: 'include'
+});
+```
+
+### Get User Preferences
+
+**GET** `/api/options/user`
+
+```javascript
+const preferences = await fetch('/api/options/user', {
+    credentials: 'include'
+}).then(r => r.json());
+```
+
+## Database Operations
+
+### Backup Database
+
+**POST** `/api/database/backup`
+
+```javascript
+const response = await fetch('/api/database/backup', {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify({
+        backupName: 'manual-backup'
+    }),
+    credentials: 'include'
+});
+
+const { backupFile } = await response.json();
+```
+
+### Vacuum Database
+
+**POST** `/api/database/vacuum`
+
+```javascript
+await fetch('/api/database/vacuum', {
+    method: 'POST',
+    headers: {
+        'X-CSRF-Token': csrfToken
+    },
+    credentials: 'include'
+});
+```
+
+### Get Database Info
+
+**GET** `/api/database/info`
+
+```javascript
+const info = await fetch('/api/database/info', {
+    credentials: 'include'
+}).then(r => r.json());
+
+console.log('Database size:', info.size);
+console.log('Note count:', info.noteCount);
+console.log('Revision count:', info.revisionCount);
+```
+
+## When to Use Internal vs ETAPI
+
+### Use Internal API When:
+
+*   Building custom Trilium clients
+*   Needing WebSocket real-time updates
+*   Requiring full feature parity with the UI
+*   Working within the Trilium frontend environment
+*   Accessing advanced features not available in ETAPI
+
+### Use ETAPI When:
+
+*   Building external integrations
+*   Creating automation scripts
+*   Developing third-party applications
+*   Needing stable, documented API
+*   Working with different programming languages
+
+### Feature Comparison
+
+| Feature | Internal API | ETAPI |
+| --- | --- | --- |
+| **Authentication** | Session/Cookie | Token |
+| **CSRF Protection** | Required | Not needed |
+| **WebSocket** | Yes | No  |
+| **Stability** | May change | Stable |
+| **Documentation** | Limited | Comprehensive |
+| **Real-time updates** | Yes | No  |
+| **File uploads** | Complex | Simple |
+| **Scripting** | Full support | Limited |
+| **Synchronization** | Yes | No  |
+
+## Security Considerations
+
+### CSRF Protection
+
+All state-changing operations require a CSRF token:
+
+```javascript
+// Get CSRF token from meta tag or API
+async function getCsrfToken() {
+    const response = await fetch('/api/csrf-token', {
+        credentials: 'include'
+    });
+    const { token } = await response.json();
+    return token;
+}
+
+// Use in requests
+const csrfToken = await getCsrfToken();
+
+await fetch('/api/notes', {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'X-CSRF-Token': csrfToken
+    },
+    body: JSON.stringify(data),
+    credentials: 'include'
+});
+```
+
+### Session Management
+
+```javascript
+class TriliumSession {
+    constructor() {
+        this.isAuthenticated = false;
+        this.csrfToken = null;
+    }
+    
+    async login(password) {
+        const formData = new URLSearchParams();
+        formData.append('password', password);
+        
+        const response = await fetch('/api/login', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/x-www-form-urlencoded'
+            },
+            body: formData,
+            credentials: 'include'
+        });
+        
+        if (response.ok) {
+            this.isAuthenticated = true;
+            this.csrfToken = await this.getCsrfToken();
+            return true;
+        }
+        
+        return false;
+    }
+    
+    async getCsrfToken() {
+        const response = await fetch('/api/csrf-token', {
+            credentials: 'include'
+        });
+        const { token } = await response.json();
+        return token;
+    }
+    
+    async request(url, options = {}) {
+        if (!this.isAuthenticated) {
+            throw new Error('Not authenticated');
+        }
+        
+        const headers = {
+            ...options.headers
+        };
+        
+        if (options.method && options.method !== 'GET') {
+            headers['X-CSRF-Token'] = this.csrfToken;
+        }
+        
+        return fetch(url, {
+            ...options,
+            headers,
+            credentials: 'include'
+        });
+    }
+    
+    async logout() {
+        await this.request('/api/logout', { method: 'POST' });
+        this.isAuthenticated = false;
+        this.csrfToken = null;
+    }
+}
+
+// Usage
+const session = new TriliumSession();
+await session.login('password');
+
+// Make authenticated requests
+const notes = await session.request('/api/notes/root').then(r => r.json());
+
+// Create note with CSRF protection
+await session.request('/api/notes/root/children', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ title: 'New Note', type: 'text' })
+});
+
+await session.logout();
+```
+
+### Protected Notes
+
+Handle encrypted notes properly:
+
+```javascript
+class ProtectedNoteHandler {
+    constructor(session) {
+        this.session = session;
+        this.protectedSessionTimeout = null;
+    }
+    
+    async enterProtectedSession(password) {
+        const response = await this.session.request('/api/login/protected', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ password })
+        });
+        
+        if (response.ok) {
+            // Protected session expires after inactivity
+            this.resetProtectedSessionTimeout();
+            return true;
+        }
+        
+        return false;
+    }
+    
+    resetProtectedSessionTimeout() {
+        if (this.protectedSessionTimeout) {
+            clearTimeout(this.protectedSessionTimeout);
+        }
+        
+        // Assume 5 minute timeout
+        this.protectedSessionTimeout = setTimeout(() => {
+            console.log('Protected session expired');
+            this.onProtectedSessionExpired();
+        }, 5 * 60 * 1000);
+    }
+    
+    async accessProtectedNote(noteId) {
+        try {
+            const note = await this.session.request(`/api/notes/${noteId}`)
+                .then(r => r.json());
+            
+            if (note.isProtected) {
+                // Reset timeout on successful access
+                this.resetProtectedSessionTimeout();
+            }
+            
+            return note;
+        } catch (error) {
+            if (error.message.includes('Protected session required')) {
+                // Prompt for password
+                const password = await this.promptForPassword();
+                if (await this.enterProtectedSession(password)) {
+                    return this.accessProtectedNote(noteId);
+                }
+            }
+            throw error;
+        }
+    }
+    
+    async promptForPassword() {
+        // Implementation depends on UI framework
+        return prompt('Enter password for protected notes:');
+    }
+    
+    onProtectedSessionExpired() {
+        // Handle expiration (e.g., show notification, lock UI)
+        console.log('Please re-enter password to access protected notes');
+    }
+}
+```
+
+## Error Handling
+
+### Common Error Responses
+
+```javascript
+// 401 Unauthorized
+{
+    "status": 401,
+    "message": "Authentication required"
+}
+
+// 403 Forbidden
+{
+    "status": 403,
+    "message": "CSRF token validation failed"
+}
+
+// 404 Not Found
+{
+    "status": 404,
+    "message": "Note 'invalidId' not found"
+}
+
+// 400 Bad Request
+{
+    "status": 400,
+    "message": "Invalid note type: 'invalid'"
+}
+
+// 500 Internal Server Error
+{
+    "status": 500,
+    "message": "Database error",
+    "stack": "..." // Only in development
+}
+```
+
+### Error Handler Implementation
+
+```javascript
+class APIErrorHandler {
+    async handleResponse(response) {
+        if (!response.ok) {
+            const error = await this.parseError(response);
+            
+            switch (response.status) {
+                case 401:
+                    this.handleAuthError(error);
+                    break;
+                case 403:
+                    this.handleForbiddenError(error);
+                    break;
+                case 404:
+                    this.handleNotFoundError(error);
+                    break;
+                case 400:
+                    this.handleBadRequestError(error);
+                    break;
+                case 500:
+                    this.handleServerError(error);
+                    break;
+                default:
+                    this.handleGenericError(error);
+            }
+            
+            throw error;
+        }
+        
+        return response;
+    }
+    
+    async parseError(response) {
+        try {
+            const errorData = await response.json();
+            return new APIError(
+                response.status,
+                errorData.message || response.statusText,
+                errorData
+            );
+        } catch {
+            return new APIError(
+                response.status,
+                response.statusText
+            );
+        }
+    }
+    
+    handleAuthError(error) {
+        console.error('Authentication required');
+        // Redirect to login
+        window.location.href = '/login';
+    }
+    
+    handleForbiddenError(error) {
+        if (error.message.includes('CSRF')) {
+            console.error('CSRF token invalid, refreshing...');
+            // Refresh CSRF token
+            this.refreshCsrfToken();
+        } else {
+            console.error('Access forbidden:', error.message);
+        }
+    }
+    
+    handleNotFoundError(error) {
+        console.error('Resource not found:', error.message);
+    }
+    
+    handleBadRequestError(error) {
+        console.error('Bad request:', error.message);
+    }
+    
+    handleServerError(error) {
+        console.error('Server error:', error.message);
+        // Show user-friendly error message
+        this.showErrorNotification('An error occurred. Please try again later.');
+    }
+    
+    handleGenericError(error) {
+        console.error('API error:', error);
+    }
+    
+    showErrorNotification(message) {
+        // Implementation depends on UI framework
+        alert(message);
+    }
+}
+
+class APIError extends Error {
+    constructor(status, message, data = {}) {
+        super(message);
+        this.status = status;
+        this.data = data;
+        this.name = 'APIError';
+    }
+}
+```
+
+## Performance Optimization
+
+### Request Batching
+
+```javascript
+class BatchedAPIClient {
+    constructor() {
+        this.batchQueue = [];
+        this.batchTimeout = null;
+        this.batchDelay = 50; // ms
+    }
+    
+    async batchRequest(request) {
+        return new Promise((resolve, reject) => {
+            this.batchQueue.push({ request, resolve, reject });
+            
+            if (!this.batchTimeout) {
+                this.batchTimeout = setTimeout(() => {
+                    this.processBatch();
+                }, this.batchDelay);
+            }
+        });
+    }
+    
+    async processBatch() {
+        const batch = this.batchQueue.splice(0);
+        this.batchTimeout = null;
+        
+        if (batch.length === 0) return;
+        
+        try {
+            const response = await fetch('/api/batch', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                    'X-CSRF-Token': csrfToken
+                },
+                body: JSON.stringify({
+                    requests: batch.map(b => b.request)
+                }),
+                credentials: 'include'
+            });
+            
+            const results = await response.json();
+            
+            batch.forEach((item, index) => {
+                if (results[index].error) {
+                    item.reject(new Error(results[index].error));
+                } else {
+                    item.resolve(results[index].data);
+                }
+            });
+        } catch (error) {
+            batch.forEach(item => item.reject(error));
+        }
+    }
+    
+    async getNote(noteId) {
+        return this.batchRequest({
+            method: 'GET',
+            url: `/api/notes/${noteId}`
+        });
+    }
+    
+    async getAttribute(attributeId) {
+        return this.batchRequest({
+            method: 'GET',
+            url: `/api/attributes/${attributeId}`
+        });
+    }
+}
+
+// Usage
+const client = new BatchedAPIClient();
+
+// These requests will be batched
+const [note1, note2, note3] = await Promise.all([
+    client.getNote('noteId1'),
+    client.getNote('noteId2'),
+    client.getNote('noteId3')
+]);
+```
+
+### Caching Strategy
+
+```javascript
+class CachedAPIClient {
+    constructor() {
+        this.cache = new Map();
+        this.cacheExpiry = new Map();
+        this.defaultTTL = 5 * 60 * 1000; // 5 minutes
+    }
+    
+    getCacheKey(method, url, params = {}) {
+        return `${method}:${url}:${JSON.stringify(params)}`;
+    }
+    
+    isExpired(key) {
+        const expiry = this.cacheExpiry.get(key);
+        return !expiry || Date.now() > expiry;
+    }
+    
+    async cachedRequest(method, url, options = {}, ttl = this.defaultTTL) {
+        const key = this.getCacheKey(method, url, options.params);
+        
+        if (method === 'GET' && this.cache.has(key) && !this.isExpired(key)) {
+            return this.cache.get(key);
+        }
+        
+        const response = await fetch(url, {
+            method,
+            ...options,
+            credentials: 'include'
+        });
+        
+        const data = await response.json();
+        
+        if (method === 'GET') {
+            this.cache.set(key, data);
+            this.cacheExpiry.set(key, Date.now() + ttl);
+        }
+        
+        return data;
+    }
+    
+    invalidate(pattern) {
+        for (const key of this.cache.keys()) {
+            if (key.includes(pattern)) {
+                this.cache.delete(key);
+                this.cacheExpiry.delete(key);
+            }
+        }
+    }
+    
+    async getNote(noteId) {
+        return this.cachedRequest('GET', `/api/notes/${noteId}`);
+    }
+    
+    async updateNote(noteId, data) {
+        const result = await fetch(`/api/notes/${noteId}`, {
+            method: 'PUT',
+            headers: {
+                'Content-Type': 'application/json',
+                'X-CSRF-Token': csrfToken
+            },
+            body: JSON.stringify(data),
+            credentials: 'include'
+        }).then(r => r.json());
+        
+        // Invalidate cache for this note
+        this.invalidate(`/api/notes/${noteId}`);
+        
+        return result;
+    }
+}
+```
+
+## Advanced Examples
+
+### Building a Note Explorer
+
+```javascript
+class NoteExplorer {
+    constructor() {
+        this.currentNote = null;
+        this.history = [];
+        this.historyIndex = -1;
+    }
+    
+    async navigateToNote(noteId) {
+        // Add to history
+        if (this.historyIndex < this.history.length - 1) {
+            this.history = this.history.slice(0, this.historyIndex + 1);
+        }
+        this.history.push(noteId);
+        this.historyIndex++;
+        
+        // Load note
+        this.currentNote = await this.loadNoteWithChildren(noteId);
+        this.render();
+    }
+    
+    async loadNoteWithChildren(noteId) {
+        const [note, children] = await Promise.all([
+            fetch(`/api/notes/${noteId}`, { credentials: 'include' })
+                .then(r => r.json()),
+            fetch(`/api/notes/${noteId}/children`, { credentials: 'include' })
+                .then(r => r.json())
+        ]);
+        
+        return { ...note, children };
+    }
+    
+    canGoBack() {
+        return this.historyIndex > 0;
+    }
+    
+    canGoForward() {
+        return this.historyIndex < this.history.length - 1;
+    }
+    
+    async goBack() {
+        if (this.canGoBack()) {
+            this.historyIndex--;
+            const noteId = this.history[this.historyIndex];
+            this.currentNote = await this.loadNoteWithChildren(noteId);
+            this.render();
+        }
+    }
+    
+    async goForward() {
+        if (this.canGoForward()) {
+            this.historyIndex++;
+            const noteId = this.history[this.historyIndex];
+            this.currentNote = await this.loadNoteWithChildren(noteId);
+            this.render();
+        }
+    }
+    
+    async searchInSubtree(query) {
+        const params = new URLSearchParams({
+            query: query,
+            ancestorNoteId: this.currentNote.noteId,
+            includeArchivedNotes: 'false'
+        });
+        
+        const response = await fetch(`/api/search?${params}`, {
+            credentials: 'include'
+        });
+        
+        return response.json();
+    }
+    
+    async createChildNote(title, content, type = 'text') {
+        const response = await fetch(`/api/notes/${this.currentNote.noteId}/children`, {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                'X-CSRF-Token': await getCsrfToken()
+            },
+            body: JSON.stringify({ title, content, type }),
+            credentials: 'include'
+        });
+        
+        const result = await response.json();
+        
+        // Refresh current note to show new child
+        this.currentNote = await this.loadNoteWithChildren(this.currentNote.noteId);
+        this.render();
+        
+        return result;
+    }
+    
+    render() {
+        // Render UI - implementation depends on framework
+        console.log('Current note:', this.currentNote.title);
+        console.log('Children:', this.currentNote.children.map(c => c.title));
+    }
+}
+
+// Usage
+const explorer = new NoteExplorer();
+await explorer.navigateToNote('root');
+await explorer.createChildNote('New Child', '<p>Content</p>');
+const searchResults = await explorer.searchInSubtree('keyword');
+```
+
+### Building a Task Management System
+
+```javascript
+class TaskManager {
+    constructor() {
+        this.taskRootId = null;
+        this.csrfToken = null;
+    }
+    
+    async initialize() {
+        this.csrfToken = await getCsrfToken();
+        this.taskRootId = await this.getOrCreateTaskRoot();
+    }
+    
+    async getOrCreateTaskRoot() {
+        // Search for existing task root
+        const searchParams = new URLSearchParams({ query: '#taskRoot' });
+        const searchResponse = await fetch(`/api/search?${searchParams}`, {
+            credentials: 'include'
+        });
+        const { results } = await searchResponse.json();
+        
+        if (results.length > 0) {
+            return results[0].noteId;
+        }
+        
+        // Create task root
+        const response = await fetch('/api/notes/root/children', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                'X-CSRF-Token': this.csrfToken
+            },
+            body: JSON.stringify({
+                title: 'Tasks',
+                type: 'text',
+                content: '<h1>Task Management</h1>'
+            }),
+            credentials: 'include'
+        });
+        
+        const { note } = await response.json();
+        
+        // Add taskRoot label
+        await this.addLabel(note.noteId, 'taskRoot');
+        
+        return note.noteId;
+    }
+    
+    async createTask(title, description, priority = 'medium', dueDate = null) {
+        // Create task note
+        const response = await fetch(`/api/notes/${this.taskRootId}/children`, {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                'X-CSRF-Token': this.csrfToken
+            },
+            body: JSON.stringify({
+                title,
+                type: 'text',
+                content: `<h2>${title}</h2><p>${description}</p>`
+            }),
+            credentials: 'include'
+        });
+        
+        const { note } = await response.json();
+        
+        // Add task metadata
+        await Promise.all([
+            this.addLabel(note.noteId, 'task'),
+            this.addLabel(note.noteId, 'status', 'todo'),
+            this.addLabel(note.noteId, 'priority', priority),
+            dueDate ? this.addLabel(note.noteId, 'dueDate', dueDate) : null
+        ].filter(Boolean));
+        
+        return note;
+    }
+    
+    async addLabel(noteId, name, value = '') {
+        await fetch(`/api/notes/${noteId}/attributes`, {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                'X-CSRF-Token': this.csrfToken
+            },
+            body: JSON.stringify({
+                type: 'label',
+                name,
+                value,
+                isInheritable: false
+            }),
+            credentials: 'include'
+        });
+    }
+    
+    async getTasks(status = null, priority = null) {
+        let query = '#task';
+        if (status) query += ` #status=${status}`;
+        if (priority) query += ` #priority=${priority}`;
+        
+        const params = new URLSearchParams({
+            query,
+            ancestorNoteId: this.taskRootId,
+            orderBy: 'dateModified',
+            orderDirection: 'desc'
+        });
+        
+        const response = await fetch(`/api/search?${params}`, {
+            credentials: 'include'
+        });
+        
+        const { results } = await response.json();
+        return results;
+    }
+    
+    async updateTaskStatus(noteId, newStatus) {
+        // Get task attributes
+        const note = await fetch(`/api/notes/${noteId}`, {
+            credentials: 'include'
+        }).then(r => r.json());
+        
+        // Find status attribute
+        const statusAttr = note.attributes.find(a => a.name === 'status');
+        
+        if (statusAttr) {
+            // Update existing status
+            await fetch(`/api/attributes/${statusAttr.attributeId}`, {
+                method: 'PUT',
+                headers: {
+                    'Content-Type': 'application/json',
+                    'X-CSRF-Token': this.csrfToken
+                },
+                body: JSON.stringify({ value: newStatus }),
+                credentials: 'include'
+            });
+        } else {
+            // Add status attribute
+            await this.addLabel(noteId, 'status', newStatus);
+        }
+        
+        // Add completion timestamp if marking as done
+        if (newStatus === 'done') {
+            const timestamp = new Date().toISOString();
+            await this.addLabel(noteId, 'completedAt', timestamp);
+        }
+    }
+    
+    async getTaskStats() {
+        const [todoTasks, inProgressTasks, doneTasks] = await Promise.all([
+            this.getTasks('todo'),
+            this.getTasks('in-progress'),
+            this.getTasks('done')
+        ]);
+        
+        return {
+            todo: todoTasks.length,
+            inProgress: inProgressTasks.length,
+            done: doneTasks.length,
+            total: todoTasks.length + inProgressTasks.length + doneTasks.length
+        };
+    }
+}
+
+// Usage
+const taskManager = new TaskManager();
+await taskManager.initialize();
+
+// Create tasks
+const task1 = await taskManager.createTask(
+    'Review Documentation',
+    'Review and update API documentation',
+    'high',
+    '2024-01-20'
+);
+
+const task2 = await taskManager.createTask(
+    'Fix Bug #123',
+    'Investigate and fix the reported issue',
+    'medium'
+);
+
+// Get tasks
+const todoTasks = await taskManager.getTasks('todo');
+console.log('Todo tasks:', todoTasks);
+
+// Update task status
+await taskManager.updateTaskStatus(task1.noteId, 'in-progress');
+
+// Get statistics
+const stats = await taskManager.getTaskStats();
+console.log('Task statistics:', stats);
+```
+
+## Conclusion
+
+The Internal API provides complete access to Trilium's functionality but should be used with caution due to its complexity and potential for changes. For most external integrations, [ETAPI](ETAPI%20Complete%20Guide.md) is the recommended choice due to its stability and comprehensive documentation.
+
+Key takeaways:
+
+*   Always include CSRF tokens for state-changing operations
+*   Handle session management carefully
+*   Use WebSocket for real-time updates
+*   Implement proper error handling
+*   Consider using ETAPI for external integrations
+*   Cache responses when appropriate for better performance
+
+For additional information, refer to:
+
+*   [ETAPI Complete Guide](ETAPI%20Complete%20Guide.md)
+*   [Script API Cookbook](Script%20API%20Cookbook.md)
+*   [WebSocket API Documentation](WebSocket%20API.md)
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/API Documentation/Script API Cookbook.md b/docs/Developer Guide/Developer Guide/API Documentation/Script API Cookbook.md
new file mode 100644
index 0000000000..0338444793
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/API Documentation/Script API Cookbook.md	
@@ -0,0 +1,1845 @@
+# Script API Cookbook
+## Table of Contents
+
+1.  [Introduction](#introduction)
+2.  [Backend Script Recipes](#backend-script-recipes)
+3.  [Frontend Script Recipes](#frontend-script-recipes)
+4.  [Common Patterns](#common-patterns)
+5.  [Note Manipulation](#note-manipulation)
+6.  [Attribute Operations](#attribute-operations)
+7.  [Search and Filtering](#search-and-filtering)
+8.  [Automation Examples](#automation-examples)
+9.  [Integration with External Services](#integration-with-external-services)
+10.  [Custom Widgets](#custom-widgets)
+11.  [Event Handling](#event-handling)
+12.  [Best Practices](#best-practices)
+
+## Introduction
+
+Trilium's Script API provides powerful automation capabilities through JavaScript code that runs either on the backend (Node.js) or frontend (browser). This cookbook contains practical recipes and patterns for common scripting tasks.
+
+### Script Types
+
+| Type | Environment | Access | Use Cases |
+| --- | --- | --- | --- |
+| **Backend Script** | Node.js | Full database, file system, network | Automation, data processing, integrations |
+| **Frontend Script** | Browser | UI manipulation, user interaction | Custom widgets, UI enhancements |
+| **Custom Widget** | Browser | Widget lifecycle, note context | Interactive components, visualizations |
+
+### Basic Script Structure
+
+**Backend Script:**
+
+```javascript
+// Access to api object is automatic
+const note = await api.getNoteWithLabel('todoList');
+const children = await note.getChildNotes();
+
+// Return value becomes script output
+return {
+    noteTitle: note.title,
+    childCount: children.length
+};
+```
+
+**Frontend Script:**
+
+```javascript
+// Access to api object is automatic
+api.showMessage('Script executed!');
+
+// Manipulate UI
+const $button = $('<button>').text('Click Me').click(() => {
+    api.showMessage('Button clicked!');
+});
+
+$('body').append($button);
+```
+
+## Backend Script Recipes
+
+### 1\. Daily Note Generator
+
+Create a daily note with template content:
+
+```javascript
+// #run=hourly
+
+async function createDailyNote() {
+    const today = api.dayjs().format('YYYY-MM-DD');
+    const dayNote = await api.getDayNote(today);
+    
+    // Check if content already exists
+    const content = await dayNote.getContent();
+    if (content && content.length > 100) {
+        return; // Already has content
+    }
+    
+    // Get template
+    const template = await api.getNoteWithLabel('dailyTemplate');
+    if (!template) {
+        await dayNote.setContent(`
+            <h2>📅 ${api.dayjs().format('dddd, MMMM D, YYYY')}</h2>
+            
+            <h3>☀️ Morning Routine</h3>
+            <ul>
+                <li>[ ] Morning meditation</li>
+                <li>[ ] Exercise</li>
+                <li>[ ] Review daily goals</li>
+            </ul>
+            
+            <h3>📋 Today's Tasks</h3>
+            <ul>
+                <li></li>
+            </ul>
+            
+            <h3>📝 Notes</h3>
+            <p></p>
+            
+            <h3>🌙 Evening Reflection</h3>
+            <p></p>
+        `);
+    } else {
+        const templateContent = await template.getContent();
+        await dayNote.setContent(templateContent);
+    }
+    
+    // Add metadata
+    await dayNote.setLabel('type', 'daily');
+    await dayNote.setLabel('created', api.dayjs().format());
+    
+    api.log(`Daily note created for ${today}`);
+}
+
+await createDailyNote();
+```
+
+### 2\. Note Statistics Collector
+
+Collect and display statistics about your notes:
+
+```javascript
+async function collectStatistics() {
+    const stats = {
+        totalNotes: 0,
+        notesByType: {},
+        notesByMonth: {},
+        largestNotes: [],
+        recentlyModified: [],
+        tagCloud: {}
+    };
+    
+    // Get all notes
+    const notes = await api.searchForNotes('');
+    stats.totalNotes = notes.length;
+    
+    for (const note of notes) {
+        // Count by type
+        stats.notesByType[note.type] = (stats.notesByType[note.type] || 0) + 1;
+        
+        // Count by creation month
+        const month = api.dayjs(note.utcDateCreated).format('YYYY-MM');
+        stats.notesByMonth[month] = (stats.notesByMonth[month] || 0) + 1;
+        
+        // Track largest notes
+        const content = await note.getContent();
+        if (content) {
+            stats.largestNotes.push({
+                noteId: note.noteId,
+                title: note.title,
+                size: content.length
+            });
+        }
+        
+        // Collect labels for tag cloud
+        const labels = await note.getLabels();
+        for (const label of labels) {
+            if (!label.name.startsWith('child:')) {
+                stats.tagCloud[label.name] = (stats.tagCloud[label.name] || 0) + 1;
+            }
+        }
+    }
+    
+    // Sort largest notes
+    stats.largestNotes.sort((a, b) => b.size - a.size);
+    stats.largestNotes = stats.largestNotes.slice(0, 10);
+    
+    // Get recently modified
+    const recentNotes = await api.searchForNotes('orderBy:dateModified limit:10');
+    stats.recentlyModified = recentNotes.map(n => ({
+        noteId: n.noteId,
+        title: n.title,
+        modified: n.utcDateModified
+    }));
+    
+    // Create or update statistics note
+    let statsNote = await api.getNoteWithLabel('statistics');
+    if (!statsNote) {
+        statsNote = await api.createTextNote('root', 'Statistics', '');
+        await statsNote.setLabel('statistics');
+    }
+    
+    // Generate report
+    const report = `
+        <h1>📊 Note Statistics</h1>
+        <p>Generated: ${api.dayjs().format('YYYY-MM-DD HH:mm:ss')}</p>
+        
+        <h2>Overview</h2>
+        <ul>
+            <li>Total Notes: <strong>${stats.totalNotes}</strong></li>
+            <li>Note Types: ${Object.entries(stats.notesByType)
+                .map(([type, count]) => `${type} (${count})`)
+                .join(', ')}</li>
+        </ul>
+        
+        <h2>Largest Notes</h2>
+        <ol>
+            ${stats.largestNotes.map(n => 
+                `<li><a href="#root/${n.noteId}">${n.title}</a> - ${(n.size / 1024).toFixed(1)} KB</li>`
+            ).join('')}
+        </ol>
+        
+        <h2>Recently Modified</h2>
+        <ul>
+            ${stats.recentlyModified.map(n => 
+                `<li><a href="#root/${n.noteId}">${n.title}</a> - ${api.dayjs(n.modified).fromNow()}</li>`
+            ).join('')}
+        </ul>
+        
+        <h2>Top Tags</h2>
+        <div class="tag-cloud">
+            ${Object.entries(stats.tagCloud)
+                .sort((a, b) => b[1] - a[1])
+                .slice(0, 20)
+                .map(([tag, count]) => 
+                    `<span style="font-size: ${Math.min(200, 100 + count * 5)}%">#${tag} (${count})</span>`
+                ).join(' ')}
+        </div>
+    `;
+    
+    await statsNote.setContent(report);
+    
+    return stats;
+}
+
+return await collectStatistics();
+```
+
+### 3\. Backup Automation
+
+Automated backup with rotation:
+
+```javascript
+// #run=daily
+
+const fs = require('fs');
+const path = require('path');
+
+async function performBackup() {
+    const backupDir = '/backups/trilium';
+    const maxBackups = 7; // Keep last 7 backups
+    
+    // Ensure backup directory exists
+    if (!fs.existsSync(backupDir)) {
+        fs.mkdirSync(backupDir, { recursive: true });
+    }
+    
+    // Create backup
+    const timestamp = api.dayjs().format('YYYY-MM-DD_HHmmss');
+    const backupName = `backup_${timestamp}`;
+    
+    await api.backupDatabase(backupName);
+    api.log(`Backup created: ${backupName}`);
+    
+    // Rotate old backups
+    const files = fs.readdirSync(api.getDataDir())
+        .filter(f => f.startsWith('backup-') && f.endsWith('.db'))
+        .map(f => ({
+            name: f,
+            path: path.join(api.getDataDir(), f),
+            time: fs.statSync(path.join(api.getDataDir(), f)).mtime
+        }))
+        .sort((a, b) => b.time - a.time);
+    
+    // Move latest backup to backup directory
+    if (files.length > 0) {
+        const latestBackup = files[0];
+        const targetPath = path.join(backupDir, latestBackup.name);
+        fs.renameSync(latestBackup.path, targetPath);
+        api.log(`Backup moved to: ${targetPath}`);
+    }
+    
+    // Clean up old backups in backup directory
+    const backupFiles = fs.readdirSync(backupDir)
+        .filter(f => f.startsWith('backup-') && f.endsWith('.db'))
+        .map(f => ({
+            name: f,
+            path: path.join(backupDir, f),
+            time: fs.statSync(path.join(backupDir, f)).mtime
+        }))
+        .sort((a, b) => b.time - a.time);
+    
+    if (backupFiles.length > maxBackups) {
+        for (let i = maxBackups; i < backupFiles.length; i++) {
+            fs.unlinkSync(backupFiles[i].path);
+            api.log(`Deleted old backup: ${backupFiles[i].name}`);
+        }
+    }
+    
+    // Create backup log note
+    let logNote = await api.getNoteWithLabel('backupLog');
+    if (!logNote) {
+        logNote = await api.createTextNote('root', 'Backup Log', '');
+        await logNote.setLabel('backupLog');
+    }
+    
+    const currentLog = await logNote.getContent();
+    const newEntry = `<p>${api.dayjs().format('YYYY-MM-DD HH:mm:ss')} - Backup completed: ${backupName}</p>\n`;
+    await logNote.setContent(newEntry + currentLog);
+    
+    return {
+        success: true,
+        backupName: backupName,
+        totalBackups: Math.min(backupFiles.length, maxBackups)
+    };
+}
+
+return await performBackup();
+```
+
+### 4\. Task Aggregator
+
+Collect all tasks from different notes:
+
+```javascript
+async function aggregateTasks() {
+    // Find all notes with todos
+    const todoNotes = await api.searchForNotes('#todo OR #task OR content:"[ ]" OR content:"[x]"');
+    
+    const tasks = {
+        pending: [],
+        completed: [],
+        overdue: []
+    };
+    
+    for (const note of todoNotes) {
+        const content = await note.getContent();
+        if (!content) continue;
+        
+        // Parse checkbox tasks
+        const checkboxRegex = /\[([ x])\]\s*(.+?)(?=\n|\<|$)/gi;
+        let match;
+        
+        while ((match = checkboxRegex.exec(content)) !== null) {
+            const isCompleted = match[1] === 'x';
+            const taskText = match[2].replace(/<[^>]*>/g, ''); // Strip HTML
+            
+            const task = {
+                noteId: note.noteId,
+                noteTitle: note.title,
+                text: taskText,
+                completed: isCompleted
+            };
+            
+            // Check for due date
+            const dueDateLabel = await note.getLabel('dueDate');
+            if (dueDateLabel) {
+                task.dueDate = dueDateLabel.value;
+                const dueDate = api.dayjs(dueDateLabel.value);
+                if (!isCompleted && dueDate.isBefore(api.dayjs())) {
+                    tasks.overdue.push(task);
+                    continue;
+                }
+            }
+            
+            if (isCompleted) {
+                tasks.completed.push(task);
+            } else {
+                tasks.pending.push(task);
+            }
+        }
+    }
+    
+    // Create or update task dashboard
+    let dashboard = await api.getNoteWithLabel('taskDashboard');
+    if (!dashboard) {
+        dashboard = await api.createTextNote('root', '📋 Task Dashboard', '');
+        await dashboard.setLabel('taskDashboard');
+    }
+    
+    const dashboardContent = `
+        <h1>📋 Task Dashboard</h1>
+        <p>Last updated: ${api.dayjs().format('YYYY-MM-DD HH:mm:ss')}</p>
+        
+        <h2>⚠️ Overdue (${tasks.overdue.length})</h2>
+        <ul>
+            ${tasks.overdue.map(t => 
+                `<li style="color: red;">
+                    <strong>${t.text}</strong> 
+                    (Due: ${api.dayjs(t.dueDate).format('MMM D')}) 
+                    - <a href="#root/${t.noteId}">${t.noteTitle}</a>
+                </li>`
+            ).join('')}
+        </ul>
+        
+        <h2>📌 Pending (${tasks.pending.length})</h2>
+        <ul>
+            ${tasks.pending.slice(0, 20).map(t => 
+                `<li>
+                    ${t.text} 
+                    ${t.dueDate ? `(Due: ${api.dayjs(t.dueDate).format('MMM D')})` : ''} 
+                    - <a href="#root/${t.noteId}">${t.noteTitle}</a>
+                </li>`
+            ).join('')}
+        </ul>
+        ${tasks.pending.length > 20 ? `<p><em>...and ${tasks.pending.length - 20} more</em></p>` : ''}
+        
+        <h2>✅ Recently Completed (${tasks.completed.length})</h2>
+        <ul>
+            ${tasks.completed.slice(0, 10).map(t => 
+                `<li style="text-decoration: line-through; opacity: 0.7;">
+                    ${t.text} - <a href="#root/${t.noteId}">${t.noteTitle}</a>
+                </li>`
+            ).join('')}
+        </ul>
+    `;
+    
+    await dashboard.setContent(dashboardContent);
+    
+    return tasks;
+}
+
+return await aggregateTasks();
+```
+
+### 5\. Content Validator
+
+Validate and fix common issues in notes:
+
+```javascript
+async function validateContent() {
+    const issues = [];
+    const fixes = [];
+    
+    const notes = await api.searchForNotes('type:text');
+    
+    for (const note of notes) {
+        const content = await note.getContent();
+        if (!content) continue;
+        
+        let newContent = content;
+        let hasIssues = false;
+        
+        // Check for broken internal links
+        const linkRegex = /<a[^>]*href="#root\/([^"]+)"[^>]*>/g;
+        let linkMatch;
+        
+        while ((linkMatch = linkRegex.exec(content)) !== null) {
+            const linkedNoteId = linkMatch[1];
+            const linkedNote = await api.getNote(linkedNoteId);
+            
+            if (!linkedNote) {
+                issues.push({
+                    noteId: note.noteId,
+                    noteTitle: note.title,
+                    issue: `Broken link to note: ${linkedNoteId}`
+                });
+                hasIssues = true;
+            }
+        }
+        
+        // Check for missing images
+        const imgRegex = /<img[^>]*src="api/images/UJHeJYbU9B0N/[^"]*\/([^"]+)"[^>]*>/g;
+        let imgMatch;
+        
+        while ((imgMatch = imgRegex.exec(content)) !== null) {
+            const imageId = imgMatch[1];
+            const imageNote = await api.getNote(imageId);
+            
+            if (!imageNote) {
+                issues.push({
+                    noteId: note.noteId,
+                    noteTitle: note.title,
+                    issue: `Missing image: ${imageId}`
+                });
+                hasIssues = true;
+            }
+        }
+        
+        // Fix common formatting issues
+        // Fix double spaces
+        if (newContent.includes('  ')) {
+            newContent = newContent.replace(/  +/g, ' ');
+            fixes.push({
+                noteId: note.noteId,
+                noteTitle: note.title,
+                fix: 'Removed double spaces'
+            });
+        }
+        
+        // Fix empty paragraphs
+        if (newContent.includes('<p></p>')) {
+            newContent = newContent.replace(/<p><\/p>/g, '');
+            fixes.push({
+                noteId: note.noteId,
+                noteTitle: note.title,
+                fix: 'Removed empty paragraphs'
+            });
+        }
+        
+        // Fix unclosed tags
+        const openTags = (newContent.match(/<[^/>]+>/g) || []).map(tag => tag.replace(/<|>/g, ''));
+        const closeTags = (newContent.match(/<\/[^>]+>/g) || []).map(tag => tag.replace(/<\/|>/g, ''));
+        
+        const unclosed = openTags.filter(tag => !closeTags.includes(tag) && !['br', 'hr', 'img', 'input'].includes(tag));
+        if (unclosed.length > 0) {
+            issues.push({
+                noteId: note.noteId,
+                noteTitle: note.title,
+                issue: `Unclosed HTML tags: ${unclosed.join(', ')}`
+            });
+        }
+        
+        // Apply fixes if content changed
+        if (newContent !== content) {
+            await note.setContent(newContent);
+        }
+    }
+    
+    // Create validation report
+    let reportNote = await api.getNoteWithLabel('validationReport');
+    if (!reportNote) {
+        reportNote = await api.createTextNote('root', 'Content Validation Report', '');
+        await reportNote.setLabel('validationReport');
+    }
+    
+    const report = `
+        <h1>🔍 Content Validation Report</h1>
+        <p>Validated: ${api.dayjs().format('YYYY-MM-DD HH:mm:ss')}</p>
+        <p>Total notes checked: ${notes.length}</p>
+        
+        <h2>❌ Issues Found (${issues.length})</h2>
+        <ul>
+            ${issues.map(i => 
+                `<li><a href="#root/${i.noteId}">${i.noteTitle}</a>: ${i.issue}</li>`
+            ).join('')}
+        </ul>
+        
+        <h2>✅ Automatic Fixes Applied (${fixes.length})</h2>
+        <ul>
+            ${fixes.map(f => 
+                `<li><a href="#root/${f.noteId}">${f.noteTitle}</a>: ${f.fix}</li>`
+            ).join('')}
+        </ul>
+    `;
+    
+    await reportNote.setContent(report);
+    
+    return { issues, fixes };
+}
+
+return await validateContent();
+```
+
+## Frontend Script Recipes
+
+### 6\. Quick Note Creator
+
+Add a floating button to quickly create notes:
+
+```javascript
+// Create floating button
+const $button = $(`
+    <div id="quick-note-btn" style="
+        position: fixed;
+        bottom: 20px;
+        right: 20px;
+        width: 60px;
+        height: 60px;
+        background: #4CAF50;
+        border-radius: 50%;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        cursor: pointer;
+        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
+        z-index: 10000;
+        color: white;
+        font-size: 30px;
+    ">+</div>
+`);
+
+// Create modal
+const $modal = $(`
+    <div id="quick-note-modal" style="
+        display: none;
+        position: fixed;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        background: white;
+        padding: 20px;
+        border-radius: 10px;
+        box-shadow: 0 10px 25px rgba(0,0,0,0.2);
+        z-index: 10001;
+        min-width: 400px;
+    ">
+        <h3>Quick Note</h3>
+        <input type="text" id="quick-note-title" placeholder="Title..." style="
+            width: 100%;
+            padding: 10px;
+            margin: 10px 0;
+            border: 1px solid #ddd;
+            border-radius: 5px;
+        ">
+        <textarea id="quick-note-content" placeholder="Content..." style="
+            width: 100%;
+            height: 200px;
+            padding: 10px;
+            margin: 10px 0;
+            border: 1px solid #ddd;
+            border-radius: 5px;
+            resize: vertical;
+        "></textarea>
+        <div>
+            <select id="quick-note-type" style="
+                padding: 8px;
+                margin-right: 10px;
+                border: 1px solid #ddd;
+                border-radius: 5px;
+            ">
+                <option value="text">Text</option>
+                <option value="code">Code</option>
+                <option value="task">Task</option>
+            </select>
+            <button id="quick-note-save" style="
+                padding: 10px 20px;
+                background: #4CAF50;
+                color: white;
+                border: none;
+                border-radius: 5px;
+                cursor: pointer;
+            ">Save</button>
+            <button id="quick-note-cancel" style="
+                padding: 10px 20px;
+                background: #f44336;
+                color: white;
+                border: none;
+                border-radius: 5px;
+                cursor: pointer;
+                margin-left: 10px;
+            ">Cancel</button>
+        </div>
+    </div>
+`);
+
+// Create overlay
+const $overlay = $(`
+    <div id="quick-note-overlay" style="
+        display: none;
+        position: fixed;
+        top: 0;
+        left: 0;
+        width: 100%;
+        height: 100%;
+        background: rgba(0,0,0,0.5);
+        z-index: 10000;
+    "></div>
+`);
+
+// Add to page
+$('body').append($button, $overlay, $modal);
+
+// Handle button click
+$button.click(() => {
+    $overlay.show();
+    $modal.show();
+    $('#quick-note-title').focus();
+});
+
+// Handle save
+$('#quick-note-save').click(async () => {
+    const title = $('#quick-note-title').val() || 'Quick Note';
+    const content = $('#quick-note-content').val() || '';
+    const type = $('#quick-note-type').val();
+    
+    let finalContent = content;
+    
+    // Format based on type
+    if (type === 'task') {
+        finalContent = `
+            <h2>📋 ${title}</h2>
+            <ul>
+                <li>[ ] ${content}</li>
+            </ul>
+        `;
+    } else if (type === 'code') {
+        finalContent = `// ${title}\n${content}`;
+    } else {
+        finalContent = `<h2>${title}</h2><p>${content}</p>`;
+    }
+    
+    // Get current note or use inbox
+    const currentNote = api.getActiveContextNote();
+    const parentNoteId = currentNote ? currentNote.noteId : (await api.getDayNote()).noteId;
+    
+    // Create note
+    const { note } = await api.runOnBackend(async (parentId, noteTitle, noteContent, noteType) => {
+        const parent = await api.getNote(parentId);
+        const newNote = await api.createNote(parent, noteTitle, noteContent, noteType === 'code' ? 'code' : 'text');
+        
+        if (noteType === 'task') {
+            await newNote.setLabel('task');
+            await newNote.setLabel('created', api.dayjs().format());
+        }
+        
+        return { note: newNote.getPojo() };
+    }, [parentNoteId, title, finalContent, type]);
+    
+    api.showMessage(`Note "${title}" created!`);
+    
+    // Clear and close
+    $('#quick-note-title').val('');
+    $('#quick-note-content').val('');
+    $overlay.hide();
+    $modal.hide();
+    
+    // Navigate to new note
+    await api.activateNewNote(note.noteId);
+});
+
+// Handle cancel
+$('#quick-note-cancel, #quick-note-overlay').click(() => {
+    $overlay.hide();
+    $modal.hide();
+});
+
+// Keyboard shortcuts
+$(document).keydown((e) => {
+    // Ctrl+Shift+N to open quick note
+    if (e.ctrlKey && e.shiftKey && e.key === 'N') {
+        e.preventDefault();
+        $button.click();
+    }
+    
+    // Escape to close
+    if (e.key === 'Escape' && $modal.is(':visible')) {
+        $overlay.hide();
+        $modal.hide();
+    }
+});
+```
+
+### 7\. Note Graph Visualizer
+
+Create an interactive graph of note relationships:
+
+```javascript
+// Load D3.js
+await api.requireLibrary('d3');
+
+// Create container
+const $container = $(`
+    <div id="note-graph" style="
+        width: 100%;
+        height: 600px;
+        border: 1px solid #ddd;
+        border-radius: 5px;
+        background: #f9f9f9;
+    "></div>
+`);
+
+// Add to current note
+const $noteDetail = $(`.note-detail-code`);
+$noteDetail.empty().append($container);
+
+// Get note data
+const graphData = await api.runOnBackend(async () => {
+    const currentNote = api.getActiveContextNote();
+    const maxDepth = 3;
+    const nodes = [];
+    const links = [];
+    const visited = new Set();
+    
+    async function traverse(note, depth = 0) {
+        if (!note || depth > maxDepth || visited.has(note.noteId)) {
+            return;
+        }
+        
+        visited.add(note.noteId);
+        
+        nodes.push({
+            id: note.noteId,
+            title: note.title,
+            type: note.type,
+            depth: depth
+        });
+        
+        // Get children
+        const children = await note.getChildNotes();
+        for (const child of children) {
+            links.push({
+                source: note.noteId,
+                target: child.noteId,
+                type: 'child'
+            });
+            await traverse(child, depth + 1);
+        }
+        
+        // Get relations
+        const relations = await note.getRelations();
+        for (const relation of relations) {
+            const targetNote = await relation.getTargetNote();
+            if (targetNote) {
+                links.push({
+                    source: note.noteId,
+                    target: targetNote.noteId,
+                    type: 'relation',
+                    name: relation.name
+                });
+                
+                if (!visited.has(targetNote.noteId)) {
+                    nodes.push({
+                        id: targetNote.noteId,
+                        title: targetNote.title,
+                        type: targetNote.type,
+                        depth: depth + 1
+                    });
+                    visited.add(targetNote.noteId);
+                }
+            }
+        }
+    }
+    
+    await traverse(currentNote);
+    
+    return { nodes, links };
+});
+
+// Create D3 visualization
+const width = $container.width();
+const height = $container.height();
+
+const svg = d3.select('#note-graph')
+    .append('svg')
+    .attr('width', width)
+    .attr('height', height);
+
+// Create force simulation
+const simulation = d3.forceSimulation(graphData.nodes)
+    .force('link', d3.forceLink(graphData.links).id(d => d.id).distance(100))
+    .force('charge', d3.forceManyBody().strength(-300))
+    .force('center', d3.forceCenter(width / 2, height / 2));
+
+// Create links
+const link = svg.append('g')
+    .selectAll('line')
+    .data(graphData.links)
+    .enter().append('line')
+    .style('stroke', d => d.type === 'child' ? '#999' : '#f00')
+    .style('stroke-opacity', 0.6)
+    .style('stroke-width', d => d.type === 'child' ? 2 : 1);
+
+// Create nodes
+const node = svg.append('g')
+    .selectAll('circle')
+    .data(graphData.nodes)
+    .enter().append('circle')
+    .attr('r', d => 10 - d.depth * 2)
+    .style('fill', d => {
+        const colors = {
+            text: '#4CAF50',
+            code: '#2196F3',
+            file: '#FF9800',
+            image: '#9C27B0'
+        };
+        return colors[d.type] || '#666';
+    })
+    .call(d3.drag()
+        .on('start', dragstarted)
+        .on('drag', dragged)
+        .on('end', dragended));
+
+// Add labels
+const label = svg.append('g')
+    .selectAll('text')
+    .data(graphData.nodes)
+    .enter().append('text')
+    .text(d => d.title)
+    .style('font-size', '12px')
+    .style('fill', '#333');
+
+// Add tooltips
+node.append('title')
+    .text(d => d.title);
+
+// Update positions on tick
+simulation.on('tick', () => {
+    link
+        .attr('x1', d => d.source.x)
+        .attr('y1', d => d.source.y)
+        .attr('x2', d => d.target.x)
+        .attr('y2', d => d.target.y);
+    
+    node
+        .attr('cx', d => d.x)
+        .attr('cy', d => d.y);
+    
+    label
+        .attr('x', d => d.x + 12)
+        .attr('y', d => d.y + 4);
+});
+
+// Drag functions
+function dragstarted(event, d) {
+    if (!event.active) simulation.alphaTarget(0.3).restart();
+    d.fx = d.x;
+    d.fy = d.y;
+}
+
+function dragged(event, d) {
+    d.fx = event.x;
+    d.fy = event.y;
+}
+
+function dragended(event, d) {
+    if (!event.active) simulation.alphaTarget(0);
+    d.fx = null;
+    d.fy = null;
+}
+
+// Handle node clicks
+node.on('click', async (event, d) => {
+    await api.activateNote(d.id);
+});
+```
+
+### 8\. Markdown Preview Toggle
+
+Add live markdown preview for notes:
+
+```javascript
+// Create preview pane
+const $previewPane = $(`
+    <div id="markdown-preview" style="
+        display: none;
+        position: absolute;
+        top: 50px;
+        right: 10px;
+        width: 45%;
+        height: calc(100% - 60px);
+        background: white;
+        border: 1px solid #ddd;
+        border-radius: 5px;
+        padding: 20px;
+        overflow-y: auto;
+        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
+        z-index: 100;
+    ">
+        <div id="preview-content"></div>
+    </div>
+`);
+
+// Create toggle button
+const $toggleBtn = $(`
+    <button id="preview-toggle" style="
+        position: absolute;
+        top: 10px;
+        right: 10px;
+        padding: 8px 15px;
+        background: #2196F3;
+        color: white;
+        border: none;
+        border-radius: 5px;
+        cursor: pointer;
+        z-index: 101;
+    ">
+        <i class="bx bx-show"></i> Preview
+    </button>
+`);
+
+// Add to note detail
+$('.note-detail-text').css('position', 'relative').append($previewPane, $toggleBtn);
+
+let previewVisible = false;
+let updateTimeout;
+
+// Load markdown library
+await api.requireLibrary('markdown-it');
+const md = window.markdownit({
+    html: true,
+    linkify: true,
+    typographer: true,
+    breaks: true
+});
+
+// Toggle preview
+$toggleBtn.click(() => {
+    previewVisible = !previewVisible;
+    
+    if (previewVisible) {
+        $previewPane.show();
+        $('.note-detail-text .note-detail-editable').css('width', '50%');
+        $toggleBtn.html('<i class="bx bx-hide"></i> Hide');
+        updatePreview();
+    } else {
+        $previewPane.hide();
+        $('.note-detail-text .note-detail-editable').css('width', '100%');
+        $toggleBtn.html('<i class="bx bx-show"></i> Preview');
+    }
+});
+
+// Update preview function
+async function updatePreview() {
+    if (!previewVisible) return;
+    
+    const content = await api.getActiveContextTextEditor().getContent();
+    
+    // Convert HTML to markdown first (simplified)
+    let markdown = content
+        .replace(/<h1[^>]*>(.*?)<\/h1>/g, '# $1\n')
+        .replace(/<h2[^>]*>(.*?)<\/h2>/g, '## $1\n')
+        .replace(/<h3[^>]*>(.*?)<\/h3>/g, '### $1\n')
+        .replace(/<p[^>]*>(.*?)<\/p>/g, '$1\n\n')
+        .replace(/<strong[^>]*>(.*?)<\/strong>/g, '**$1**')
+        .replace(/<b[^>]*>(.*?)<\/b>/g, '**$1**')
+        .replace(/<em[^>]*>(.*?)<\/em>/g, '*$1*')
+        .replace(/<i[^>]*>(.*?)<\/i>/g, '*$1*')
+        .replace(/<code[^>]*>(.*?)<\/code>/g, '`$1`')
+        .replace(/<ul[^>]*>/g, '')
+        .replace(/<\/ul>/g, '\n')
+        .replace(/<li[^>]*>(.*?)<\/li>/g, '- $1\n')
+        .replace(/<ol[^>]*>/g, '')
+        .replace(/<\/ol>/g, '\n')
+        .replace(/<li[^>]*>(.*?)<\/li>/g, '1. $1\n')
+        .replace(/<a href="#root/Z7VzyCVBZwf1"]*)"[^>]*>(.*?)<\/a>/g, '[$2]($1)')
+        .replace(/<img[^>]*src="api/images/Z7VzyCVBZwf1/([^"]*)"[^>]*alt="([^"]*)"[^>]*>/g, '![$2]($1)')
+        .replace(/<br[^>]*>/g, '\n')
+        .replace(/<[^>]+>/g, ''); // Remove remaining HTML tags
+    
+    // Render markdown
+    const html = md.render(markdown);
+    
+    $('#preview-content').html(html);
+    
+    // Syntax highlight code blocks
+    $('#preview-content pre code').each(function() {
+        if (window.hljs) {
+            window.hljs.highlightElement(this);
+        }
+    });
+}
+
+// Auto-update preview on content change
+api.bindGlobalShortcut('mod+s', async () => {
+    if (previewVisible) {
+        clearTimeout(updateTimeout);
+        updateTimeout = setTimeout(updatePreview, 500);
+    }
+});
+
+// Update on note change
+api.onActiveContextNoteChange(async () => {
+    if (previewVisible) {
+        updatePreview();
+    }
+});
+```
+
+## Common Patterns
+
+### 9\. Template System
+
+Create and apply templates to new notes:
+
+```javascript
+// Backend script to manage templates
+
+async function createFromTemplate(templateName, targetParentId, customData = {}) {
+    // Find template
+    const template = await api.getNoteWithLabel(`template:${templateName}`);
+    if (!template) {
+        throw new Error(`Template "${templateName}" not found`);
+    }
+    
+    // Get template content and metadata
+    const content = await template.getContent();
+    const attributes = await template.getAttributes();
+    
+    // Process template variables
+    let processedContent = content;
+    const variables = {
+        DATE: api.dayjs().format('YYYY-MM-DD'),
+        TIME: api.dayjs().format('HH:mm:ss'),
+        DATETIME: api.dayjs().format('YYYY-MM-DD HH:mm:ss'),
+        USER: api.getAppInfo().username || 'User',
+        ...customData
+    };
+    
+    for (const [key, value] of Object.entries(variables)) {
+        const regex = new RegExp(`{{${key}}}`, 'g');
+        processedContent = processedContent.replace(regex, value);
+    }
+    
+    // Create new note
+    const parentNote = await api.getNote(targetParentId);
+    const title = customData.title || `${templateName} - ${variables.DATE}`;
+    const newNote = await api.createNote(parentNote, title, processedContent);
+    
+    // Copy attributes (except template label)
+    for (const attr of attributes) {
+        if (!attr.name.startsWith('template:')) {
+            if (attr.type === 'label') {
+                await newNote.setLabel(attr.name, attr.value);
+            } else if (attr.type === 'relation') {
+                await newNote.setRelation(attr.name, attr.value);
+            }
+        }
+    }
+    
+    return newNote;
+}
+
+// Example: Meeting notes template
+const meetingTemplate = `
+<h1>Meeting Notes - {{DATE}}</h1>
+
+<table>
+    <tr><th>Date:</th><td>{{DATE}}</td></tr>
+    <tr><th>Time:</th><td>{{TIME}}</td></tr>
+    <tr><th>Attendees:</th><td>{{ATTENDEES}}</td></tr>
+    <tr><th>Subject:</th><td>{{SUBJECT}}</td></tr>
+</table>
+
+<h2>Agenda</h2>
+<ul>
+    <li>{{AGENDA_ITEM_1}}</li>
+    <li>{{AGENDA_ITEM_2}}</li>
+    <li>{{AGENDA_ITEM_3}}</li>
+</ul>
+
+<h2>Discussion</h2>
+<p></p>
+
+<h2>Action Items</h2>
+<ul>
+    <li>[ ] </li>
+</ul>
+
+<h2>Next Steps</h2>
+<p></p>
+`;
+
+// Create template note if it doesn't exist
+let templateNote = await api.getNoteWithLabel('template:meeting');
+if (!templateNote) {
+    templateNote = await api.createTextNote('root', 'Meeting Template', meetingTemplate);
+    await templateNote.setLabel('template:meeting');
+    await templateNote.setLabel('hideFromTree'); // Hide template from tree
+}
+
+// Use template
+const meeting = await createFromTemplate('meeting', 'root', {
+    title: 'Team Standup',
+    ATTENDEES: 'John, Jane, Bob',
+    SUBJECT: 'Weekly Status Update',
+    AGENDA_ITEM_1: 'Review last week\'s tasks',
+    AGENDA_ITEM_2: 'Current blockers',
+    AGENDA_ITEM_3: 'Next week\'s priorities'
+});
+
+api.log(`Created meeting note: ${meeting.title}`);
+```
+
+### 10\. Hierarchical Tag System
+
+Implement hierarchical tags with inheritance:
+
+```javascript
+class HierarchicalTags {
+    constructor() {
+        this.tagHierarchy = {};
+    }
+    
+    async buildTagHierarchy() {
+        // Find all tag definition notes
+        const tagNotes = await api.searchForNotes('#tagDef');
+        
+        for (const note of tagNotes) {
+            const tagName = await note.getLabel('tagName');
+            const parentTag = await note.getLabel('parentTag');
+            
+            if (tagName) {
+                this.tagHierarchy[tagName.value] = {
+                    noteId: note.noteId,
+                    parent: parentTag ? parentTag.value : null,
+                    children: []
+                };
+            }
+        }
+        
+        // Build children arrays
+        for (const [tag, data] of Object.entries(this.tagHierarchy)) {
+            if (data.parent && this.tagHierarchy[data.parent]) {
+                this.tagHierarchy[data.parent].children.push(tag);
+            }
+        }
+        
+        return this.tagHierarchy;
+    }
+    
+    async applyHierarchicalTag(noteId, tagName) {
+        const note = await api.getNote(noteId);
+        
+        // Apply the tag
+        await note.setLabel(tagName);
+        
+        // Apply all parent tags
+        let currentTag = tagName;
+        while (this.tagHierarchy[currentTag] && this.tagHierarchy[currentTag].parent) {
+            const parentTag = this.tagHierarchy[currentTag].parent;
+            await note.setLabel(parentTag);
+            currentTag = parentTag;
+        }
+    }
+    
+    async getNotesWithTagHierarchy(tagName) {
+        // Get all child tags
+        const allTags = [tagName];
+        const queue = [tagName];
+        
+        while (queue.length > 0) {
+            const current = queue.shift();
+            if (this.tagHierarchy[current]) {
+                for (const child of this.tagHierarchy[current].children) {
+                    allTags.push(child);
+                    queue.push(child);
+                }
+            }
+        }
+        
+        // Search for notes with any of these tags
+        const searchQuery = allTags.map(t => `#${t}`).join(' OR ');
+        return await api.searchForNotes(searchQuery);
+    }
+    
+    async createTagReport() {
+        await this.buildTagHierarchy();
+        
+        let report = '<h1>Tag Hierarchy Report</h1>\n';
+        
+        // Build tree visualization
+        const renderTree = (tag, level = 0) => {
+            const indent = '&nbsp;'.repeat(level * 4);
+            let html = `${indent}• ${tag}`;
+            
+            const notes = api.searchForNotes(`#${tag}`);
+            html += ` (${notes.length} notes)<br>\n`;
+            
+            if (this.tagHierarchy[tag] && this.tagHierarchy[tag].children.length > 0) {
+                for (const child of this.tagHierarchy[tag].children) {
+                    html += renderTree(child, level + 1);
+                }
+            }
+            
+            return html;
+        };
+        
+        // Find root tags (no parent)
+        const rootTags = Object.keys(this.tagHierarchy)
+            .filter(tag => !this.tagHierarchy[tag].parent);
+        
+        for (const rootTag of rootTags) {
+            report += renderTree(rootTag);
+        }
+        
+        // Create or update report note
+        let reportNote = await api.getNoteWithLabel('tagHierarchyReport');
+        if (!reportNote) {
+            reportNote = await api.createTextNote('root', 'Tag Hierarchy Report', '');
+            await reportNote.setLabel('tagHierarchyReport');
+        }
+        
+        await reportNote.setContent(report);
+        
+        return report;
+    }
+}
+
+// Usage
+const tagSystem = new HierarchicalTags();
+
+// Define tag hierarchy
+const createTagDefinition = async (tagName, parentTag = null) => {
+    let tagDef = await api.getNoteWithLabel(`tagDef:${tagName}`);
+    if (!tagDef) {
+        tagDef = await api.createTextNote('root', `Tag: ${tagName}`, `Tag definition for ${tagName}`);
+        await tagDef.setLabel('tagDef');
+        await tagDef.setLabel(`tagDef:${tagName}`);
+        await tagDef.setLabel('tagName', tagName);
+        if (parentTag) {
+            await tagDef.setLabel('parentTag', parentTag);
+        }
+    }
+    return tagDef;
+};
+
+// Create tag hierarchy
+await createTagDefinition('project');
+await createTagDefinition('work', 'project');
+await createTagDefinition('personal', 'project');
+await createTagDefinition('development', 'work');
+await createTagDefinition('documentation', 'work');
+
+// Apply hierarchical tag
+await tagSystem.buildTagHierarchy();
+await tagSystem.applyHierarchicalTag('someNoteId', 'documentation');
+// This will also apply 'work' and 'project' tags
+
+// Get all notes in hierarchy
+const projectNotes = await tagSystem.getNotesWithTagHierarchy('project');
+// Returns notes tagged with 'project', 'work', 'personal', 'development', or 'documentation'
+
+// Generate report
+await tagSystem.createTagReport();
+```
+
+## Integration with External Services
+
+### 11\. GitHub Integration
+
+Sync GitHub issues with notes:
+
+```javascript
+// Requires axios library
+const axios = require('axios');
+
+class GitHubSync {
+    constructor(token, repo) {
+        this.token = token;
+        this.repo = repo; // format: "owner/repo"
+        this.apiBase = 'https://api.github.com';
+    }
+    
+    async getIssues(state = 'open') {
+        const response = await axios.get(`${this.apiBase}/repos/${this.repo}/issues`, {
+            headers: {
+                'Authorization': `token ${this.token}`,
+                'Accept': 'application/vnd.github.v3+json'
+            },
+            params: { state }
+        });
+        
+        return response.data;
+    }
+    
+    async syncIssuesToNotes() {
+        // Get or create GitHub folder
+        let githubFolder = await api.getNoteWithLabel('githubSync');
+        if (!githubFolder) {
+            githubFolder = await api.createTextNote('root', 'GitHub Issues', '');
+            await githubFolder.setLabel('githubSync');
+        }
+        
+        const issues = await this.getIssues();
+        const syncedNotes = [];
+        
+        for (const issue of issues) {
+            // Check if issue note already exists
+            let issueNote = await api.getNoteWithLabel(`github:issue:${issue.number}`);
+            
+            const content = `
+                <h1>${issue.title}</h1>
+                
+                <table>
+                    <tr><th>Issue #</th><td>${issue.number}</td></tr>
+                    <tr><th>State</th><td>${issue.state}</td></tr>
+                    <tr><th>Author</th><td>${issue.user.login}</td></tr>
+                    <tr><th>Created</th><td>${api.dayjs(issue.created_at).format('YYYY-MM-DD HH:mm')}</td></tr>
+                    <tr><th>Updated</th><td>${api.dayjs(issue.updated_at).format('YYYY-MM-DD HH:mm')}</td></tr>
+                    <tr><th>Labels</th><td>${issue.labels.map(l => l.name).join(', ')}</td></tr>
+                </table>
+                
+                <h2>Description</h2>
+                <div style="background: #f5f5f5; padding: 10px; border-radius: 5px;">
+                    ${issue.body || 'No description'}
+                </div>
+                
+                <h2>Links</h2>
+                <ul>
+                    <li><a href="#root/BapEoNvlb1Hl">View on GitHub</a></li>
+                    <li><a href="#root/IgmpadAfZP9V">API URL</a></li>
+                </ul>
+            `;
+            
+            if (!issueNote) {
+                // Create new note
+                issueNote = await api.createNote(
+                    githubFolder,
+                    `#${issue.number}: ${issue.title}`,
+                    content
+                );
+                await issueNote.setLabel(`github:issue:${issue.number}`);
+            } else {
+                // Update existing note
+                await issueNote.setContent(content);
+            }
+            
+            // Set labels based on issue state and labels
+            await issueNote.setLabel('githubIssue');
+            await issueNote.setLabel('state', issue.state);
+            
+            for (const label of issue.labels) {
+                await issueNote.setLabel(`gh:${label.name}`);
+            }
+            
+            syncedNotes.push({
+                noteId: issueNote.noteId,
+                issueNumber: issue.number,
+                title: issue.title
+            });
+        }
+        
+        api.log(`Synced ${syncedNotes.length} GitHub issues`);
+        return syncedNotes;
+    }
+    
+    async createIssueFromNote(noteId) {
+        const note = await api.getNote(noteId);
+        const content = await note.getContent();
+        
+        // Extract plain text from HTML
+        const plainText = content.replace(/<[^>]*>/g, '');
+        
+        const response = await axios.post(
+            `${this.apiBase}/repos/${this.repo}/issues`,
+            {
+                title: note.title,
+                body: plainText,
+                labels: ['from-trilium']
+            },
+            {
+                headers: {
+                    'Authorization': `token ${this.token}`,
+                    'Accept': 'application/vnd.github.v3+json'
+                }
+            }
+        );
+        
+        // Link note to issue
+        await note.setLabel(`github:issue:${response.data.number}`);
+        await note.setLabel('githubIssue');
+        
+        return response.data;
+    }
+}
+
+// Usage
+const github = new GitHubSync(
+    process.env.GITHUB_TOKEN || 'your-token',
+    'your-org/your-repo'
+);
+
+// Sync issues to notes
+const synced = await github.syncIssuesToNotes();
+
+// Create issue from current note
+// const issue = await github.createIssueFromNote('currentNoteId');
+```
+
+### 12\. Email Integration
+
+Send notes via email:
+
+```javascript
+const nodemailer = require('nodemailer');
+
+class EmailIntegration {
+    constructor(config) {
+        this.transporter = nodemailer.createTransporter({
+            host: config.host || 'smtp.gmail.com',
+            port: config.port || 587,
+            secure: false,
+            auth: {
+                user: config.user,
+                pass: config.pass
+            }
+        });
+    }
+    
+    async sendNoteAsEmail(noteId, to, options = {}) {
+        const note = await api.getNote(noteId);
+        const content = await note.getContent();
+        
+        // Get attachments
+        const attachments = await note.getAttachments();
+        const mailAttachments = [];
+        
+        for (const attachment of attachments) {
+            const blob = await attachment.getBlob();
+            mailAttachments.push({
+                filename: attachment.title,
+                content: blob.content,
+                contentType: attachment.mime
+            });
+        }
+        
+        // Convert note content to email-friendly HTML
+        const emailHtml = `
+            <!DOCTYPE html>
+            <html>
+            <head>
+                <style>
+                    body { font-family: Arial, sans-serif; line-height: 1.6; }
+                    h1 { color: #333; }
+                    h2 { color: #666; }
+                    code { background: #f4f4f4; padding: 2px 4px; }
+                    pre { background: #f4f4f4; padding: 10px; overflow-x: auto; }
+                </style>
+            </head>
+            <body>
+                ${content}
+                <hr>
+                <p style="color: #999; font-size: 12px;">
+                    Sent from Trilium Notes on ${api.dayjs().format('YYYY-MM-DD HH:mm:ss')}
+                </p>
+            </body>
+            </html>
+        `;
+        
+        const mailOptions = {
+            from: options.from || this.transporter.options.auth.user,
+            to: to,
+            subject: options.subject || note.title,
+            html: emailHtml,
+            attachments: mailAttachments
+        };
+        
+        const info = await this.transporter.sendMail(mailOptions);
+        
+        // Log email send
+        await note.setLabel('emailSent', api.dayjs().format());
+        await note.setLabel('emailRecipient', to);
+        
+        api.log(`Email sent: ${info.messageId}`);
+        
+        return info;
+    }
+    
+    async createEmailCampaign(templateNoteId, recipientListNoteId) {
+        const template = await api.getNote(templateNoteId);
+        const recipientNote = await api.getNote(recipientListNoteId);
+        const recipientContent = await recipientNote.getContent();
+        
+        // Parse recipient list (assume one email per line)
+        const recipients = recipientContent
+            .split('\n')
+            .map(line => line.trim())
+            .filter(line => line && line.includes('@'));
+        
+        const results = [];
+        
+        for (const recipient of recipients) {
+            try {
+                const result = await this.sendNoteAsEmail(
+                    templateNoteId,
+                    recipient,
+                    {
+                        subject: template.title
+                    }
+                );
+                
+                results.push({
+                    recipient,
+                    success: true,
+                    messageId: result.messageId
+                });
+                
+                // Add delay to avoid rate limiting
+                await new Promise(resolve => setTimeout(resolve, 1000));
+            } catch (error) {
+                results.push({
+                    recipient,
+                    success: false,
+                    error: error.message
+                });
+            }
+        }
+        
+        // Create campaign report
+        const reportNote = await api.createTextNote(
+            'root',
+            `Email Campaign Report - ${api.dayjs().format('YYYY-MM-DD')}`,
+            `
+                <h1>Email Campaign Report</h1>
+                <p>Template: ${template.title}</p>
+                <p>Sent: ${api.dayjs().format('YYYY-MM-DD HH:mm:ss')}</p>
+                <p>Total Recipients: ${recipients.length}</p>
+                <p>Successful: ${results.filter(r => r.success).length}</p>
+                <p>Failed: ${results.filter(r => !r.success).length}</p>
+                
+                <h2>Results</h2>
+                <table>
+                    <tr><th>Recipient</th><th>Status</th><th>Details</th></tr>
+                    ${results.map(r => `
+                        <tr>
+                            <td>${r.recipient}</td>
+                            <td>${r.success ? '✅ Sent' : '❌ Failed'}</td>
+                            <td>${r.success ? r.messageId : r.error}</td>
+                        </tr>
+                    `).join('')}
+                </table>
+            `
+        );
+        
+        await reportNote.setLabel('emailCampaignReport');
+        
+        return results;
+    }
+}
+
+// Usage
+const email = new EmailIntegration({
+    host: 'smtp.gmail.com',
+    port: 587,
+    user: 'your-email@gmail.com',
+    pass: 'your-app-password'
+});
+
+// Send single note
+// await email.sendNoteAsEmail('noteId', 'recipient@example.com');
+
+// Send campaign
+// await email.createEmailCampaign('templateNoteId', 'recipientListNoteId');
+```
+
+## Best Practices
+
+### Error Handling
+
+Always wrap scripts in try-catch blocks:
+
+```javascript
+async function safeScriptExecution() {
+    try {
+        // Your script code here
+        const result = await riskyOperation();
+        
+        return {
+            success: true,
+            data: result
+        };
+    } catch (error) {
+        api.log(`Error in script: ${error.message}`, 'error');
+        
+        // Create error report note
+        const errorNote = await api.createTextNote(
+            'root',
+            `Script Error - ${api.dayjs().format('YYYY-MM-DD HH:mm:ss')}`,
+            `
+                <h1>Script Error</h1>
+                <p><strong>Error:</strong> ${error.message}</p>
+                <p><strong>Stack:</strong></p>
+                <pre>${error.stack}</pre>
+                <p><strong>Script:</strong> ${api.currentNote.title}</p>
+            `
+        );
+        
+        await errorNote.setLabel('scriptError');
+        
+        return {
+            success: false,
+            error: error.message
+        };
+    }
+}
+
+return await safeScriptExecution();
+```
+
+### Performance Optimization
+
+Use batch operations and caching:
+
+```javascript
+class OptimizedNoteProcessor {
+    constructor() {
+        this.cache = new Map();
+    }
+    
+    async processNotes(noteIds) {
+        // Batch fetch notes
+        const notes = await Promise.all(
+            noteIds.map(id => this.getCachedNote(id))
+        );
+        
+        // Process in chunks to avoid memory issues
+        const chunkSize = 100;
+        const results = [];
+        
+        for (let i = 0; i < notes.length; i += chunkSize) {
+            const chunk = notes.slice(i, i + chunkSize);
+            const chunkResults = await Promise.all(
+                chunk.map(note => this.processNote(note))
+            );
+            results.push(...chunkResults);
+            
+            // Allow other operations
+            await new Promise(resolve => setTimeout(resolve, 10));
+        }
+        
+        return results;
+    }
+    
+    async getCachedNote(noteId) {
+        if (!this.cache.has(noteId)) {
+            const note = await api.getNote(noteId);
+            this.cache.set(noteId, note);
+        }
+        return this.cache.get(noteId);
+    }
+    
+    async processNote(note) {
+        // Process individual note
+        return {
+            noteId: note.noteId,
+            processed: true
+        };
+    }
+}
+```
+
+### Script Organization
+
+Organize complex scripts with modules:
+
+```javascript
+// Create a utility module note
+const utilsNote = await api.createCodeNote('root', 'Script Utils', `
+    module.exports = {
+        formatDate: (date) => api.dayjs(date).format('YYYY-MM-DD'),
+        
+        sanitizeHtml: (html) => {
+            return html
+                .replace(/<script[^>]*>.*?<\/script>/gi, '')
+                .replace(/on\w+="[^"]*"/gi, '');
+        },
+        
+        async createBackup(name) {
+            await api.backupDatabase(name);
+            api.log(\`Backup created: \\${name}\`);
+        }
+    };
+`, 'js');
+
+await utilsNote.setLabel('scriptModule');
+await utilsNote.setLabel('moduleName', 'utils');
+
+// Use in another script
+const utils = await api.requireModule('utils');
+const formattedDate = utils.formatDate(new Date());
+```
+
+### Testing Scripts
+
+Create test suites for your scripts:
+
+```javascript
+class ScriptTester {
+    constructor(scriptName) {
+        this.scriptName = scriptName;
+        this.tests = [];
+        this.results = [];
+    }
+    
+    test(description, testFn) {
+        this.tests.push({ description, testFn });
+    }
+    
+    async run() {
+        api.log(`Running tests for ${this.scriptName}`);
+        
+        for (const test of this.tests) {
+            try {
+                await test.testFn();
+                this.results.push({
+                    description: test.description,
+                    passed: true
+                });
+                api.log(`✅ ${test.description}`);
+            } catch (error) {
+                this.results.push({
+                    description: test.description,
+                    passed: false,
+                    error: error.message
+                });
+                api.log(`❌ ${test.description}: ${error.message}`);
+            }
+        }
+        
+        return this.generateReport();
+    }
+    
+    generateReport() {
+        const passed = this.results.filter(r => r.passed).length;
+        const failed = this.results.filter(r => !r.passed).length;
+        
+        return {
+            script: this.scriptName,
+            total: this.results.length,
+            passed,
+            failed,
+            results: this.results
+        };
+    }
+    
+    assert(condition, message) {
+        if (!condition) {
+            throw new Error(message || 'Assertion failed');
+        }
+    }
+    
+    assertEquals(actual, expected, message) {
+        if (actual !== expected) {
+            throw new Error(message || `Expected ${expected}, got ${actual}`);
+        }
+    }
+}
+
+// Example test suite
+const tester = new ScriptTester('Note Utils');
+
+tester.test('Create note', async () => {
+    const note = await api.createTextNote('root', 'Test Note', 'Content');
+    tester.assert(note !== null, 'Note should be created');
+    tester.assertEquals(note.title, 'Test Note', 'Title should match');
+    
+    // Clean up
+    await note.delete();
+});
+
+tester.test('Search notes', async () => {
+    const results = await api.searchForNotes('test');
+    tester.assert(Array.isArray(results), 'Results should be an array');
+});
+
+const report = await tester.run();
+return report;
+```
+
+## Conclusion
+
+The Script API provides powerful capabilities for automating and extending Trilium Notes. Key takeaways:
+
+1.  **Use Backend Scripts** for data processing, automation, and integrations
+2.  **Use Frontend Scripts** for UI enhancements and user interactions
+3.  **Always handle errors** gracefully and provide meaningful feedback
+4.  **Optimize performance** with caching and batch operations
+5.  **Organize complex scripts** into modules for reusability
+6.  **Test your scripts** to ensure reliability
+
+For more information:
+
+*   [Backend Script API Reference](https://triliumnext.github.io/Docs/api/Backend_Script_API.html)
+*   [Frontend Script API Reference](https://triliumnext.github.io/Docs/api/Frontend_Script_API.html)
+*   [Custom Widget Development](#root/CXtjbrjXfIlk)
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/API Documentation/WebSocket API.md b/docs/Developer Guide/Developer Guide/API Documentation/WebSocket API.md
new file mode 100644
index 0000000000..58f5b84a71
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/API Documentation/WebSocket API.md	
@@ -0,0 +1,1795 @@
+# WebSocket API
+## WebSocket API Documentation
+
+## Table of Contents
+
+1.  [Introduction](#introduction)
+2.  [Connection Setup](#connection-setup)
+3.  [Authentication](#authentication)
+4.  [Message Format](#message-format)
+5.  [Event Types](#event-types)
+6.  [Real-time Synchronization](#real-time-synchronization)
+7.  [Custom Event Broadcasting](#custom-event-broadcasting)
+8.  [Client Implementation Examples](#client-implementation-examples)
+9.  [Debugging WebSocket Connections](#debugging-websocket-connections)
+10.  [Best Practices](#best-practices)
+11.  [Error Handling](#error-handling)
+12.  [Performance Optimization](#performance-optimization)
+
+## Introduction
+
+The Trilium WebSocket API provides real-time bidirectional communication between the server and clients. It's primarily used for:
+
+*   **Real-time synchronization** of note changes across multiple clients
+*   **Live collaboration** features
+*   **Push notifications** for events
+*   **Streaming updates** for long-running operations
+*   **Frontend script execution** from backend
+
+### Key Features
+
+*   Automatic reconnection with exponential backoff
+*   Message queuing during disconnection
+*   Event-based architecture
+*   Support for custom event types
+*   Built-in heartbeat/ping mechanism
+
+### WebSocket URL
+
+```
+ws://localhost:8080   // Local development
+wss://your-server.com  // Production with SSL
+```
+
+## Connection Setup
+
+### Basic Connection
+
+```javascript
+// JavaScript - Basic WebSocket connection
+const ws = new WebSocket('ws://localhost:8080');
+
+ws.onopen = (event) => {
+    console.log('Connected to Trilium WebSocket');
+};
+
+ws.onmessage = (event) => {
+    const message = JSON.parse(event.data);
+    console.log('Received:', message);
+};
+
+ws.onerror = (error) => {
+    console.error('WebSocket error:', error);
+};
+
+ws.onclose = (event) => {
+    console.log('Disconnected from WebSocket');
+};
+```
+
+### Advanced Connection Manager
+
+```javascript
+class TriliumWebSocketManager {
+    constructor(url, options = {}) {
+        this.url = url;
+        this.options = {
+            reconnectInterval: 5000,
+            maxReconnectInterval: 30000,
+            reconnectDecay: 1.5,
+            timeoutInterval: 2000,
+            maxReconnectAttempts: null,
+            ...options
+        };
+        
+        this.ws = null;
+        this.forcedClose = false;
+        this.reconnectAttempts = 0;
+        this.messageQueue = [];
+        this.eventHandlers = new Map();
+        this.reconnectTimer = null;
+        this.pingTimer = null;
+    }
+    
+    connect() {
+        this.ws = new WebSocket(this.url);
+        
+        this.ws.onopen = (event) => {
+            console.log('WebSocket connected');
+            this.onOpen(event);
+        };
+        
+        this.ws.onmessage = (event) => {
+            this.onMessage(event);
+        };
+        
+        this.ws.onerror = (error) => {
+            console.error('WebSocket error:', error);
+            this.onError(error);
+        };
+        
+        this.ws.onclose = (event) => {
+            console.log('WebSocket closed');
+            this.onClose(event);
+        };
+    }
+    
+    onOpen(event) {
+        this.reconnectAttempts = 0;
+        
+        // Send queued messages
+        while (this.messageQueue.length > 0) {
+            const message = this.messageQueue.shift();
+            this.send(message);
+        }
+        
+        // Start ping timer
+        this.startPing();
+        
+        // Emit open event
+        this.emit('open', event);
+    }
+    
+    onMessage(event) {
+        try {
+            const message = JSON.parse(event.data);
+            
+            // Handle different message types
+            if (message.type === 'pong') {
+                this.handlePong(message);
+            } else {
+                this.emit('message', message);
+                
+                // Emit specific event type
+                if (message.type) {
+                    this.emit(message.type, message.data || message);
+                }
+            }
+        } catch (error) {
+            console.error('Failed to parse message:', error);
+        }
+    }
+    
+    onError(error) {
+        this.emit('error', error);
+    }
+    
+    onClose(event) {
+        this.ws = null;
+        
+        if (!this.forcedClose) {
+            this.reconnect();
+        }
+        
+        this.stopPing();
+        this.emit('close', event);
+    }
+    
+    reconnect() {
+        if (this.options.maxReconnectAttempts && 
+            this.reconnectAttempts >= this.options.maxReconnectAttempts) {
+            this.emit('max-reconnects');
+            return;
+        }
+        
+        this.reconnectAttempts++;
+        
+        const timeout = Math.min(
+            this.options.reconnectInterval * Math.pow(
+                this.options.reconnectDecay,
+                this.reconnectAttempts - 1
+            ),
+            this.options.maxReconnectInterval
+        );
+        
+        console.log(`Reconnecting in ${timeout}ms (attempt ${this.reconnectAttempts})`);
+        
+        this.reconnectTimer = setTimeout(() => {
+            console.log('Reconnecting...');
+            this.connect();
+        }, timeout);
+        
+        this.emit('reconnecting', {
+            attempt: this.reconnectAttempts,
+            timeout
+        });
+    }
+    
+    send(data) {
+        if (this.ws && this.ws.readyState === WebSocket.OPEN) {
+            const message = typeof data === 'string' ? data : JSON.stringify(data);
+            this.ws.send(message);
+        } else {
+            // Queue message for later
+            this.messageQueue.push(data);
+        }
+    }
+    
+    startPing() {
+        this.pingTimer = setInterval(() => {
+            if (this.ws && this.ws.readyState === WebSocket.OPEN) {
+                this.send({ type: 'ping', timestamp: Date.now() });
+            }
+        }, 30000); // Ping every 30 seconds
+    }
+    
+    stopPing() {
+        if (this.pingTimer) {
+            clearInterval(this.pingTimer);
+            this.pingTimer = null;
+        }
+    }
+    
+    handlePong(message) {
+        const latency = Date.now() - message.timestamp;
+        this.emit('latency', latency);
+    }
+    
+    on(event, handler) {
+        if (!this.eventHandlers.has(event)) {
+            this.eventHandlers.set(event, []);
+        }
+        this.eventHandlers.get(event).push(handler);
+    }
+    
+    off(event, handler) {
+        const handlers = this.eventHandlers.get(event);
+        if (handlers) {
+            const index = handlers.indexOf(handler);
+            if (index !== -1) {
+                handlers.splice(index, 1);
+            }
+        }
+    }
+    
+    emit(event, data) {
+        const handlers = this.eventHandlers.get(event);
+        if (handlers) {
+            handlers.forEach(handler => {
+                try {
+                    handler(data);
+                } catch (error) {
+                    console.error(`Error in event handler for ${event}:`, error);
+                }
+            });
+        }
+    }
+    
+    close() {
+        this.forcedClose = true;
+        
+        if (this.reconnectTimer) {
+            clearTimeout(this.reconnectTimer);
+            this.reconnectTimer = null;
+        }
+        
+        if (this.ws) {
+            this.ws.close();
+        }
+        
+        this.stopPing();
+    }
+    
+    getState() {
+        if (!this.ws) {
+            return 'DISCONNECTED';
+        }
+        
+        switch (this.ws.readyState) {
+            case WebSocket.CONNECTING:
+                return 'CONNECTING';
+            case WebSocket.OPEN:
+                return 'CONNECTED';
+            case WebSocket.CLOSING:
+                return 'CLOSING';
+            case WebSocket.CLOSED:
+                return 'DISCONNECTED';
+            default:
+                return 'UNKNOWN';
+        }
+    }
+}
+```
+
+## Authentication
+
+WebSocket connections inherit authentication from the HTTP session or require token-based auth.
+
+### Session-Based Authentication
+
+```javascript
+// Session auth (cookies must be included)
+const ws = new WebSocket('ws://localhost:8080', {
+    headers: {
+        'Cookie': document.cookie  // Include session cookie
+    }
+});
+```
+
+### Token-Based Authentication
+
+```javascript
+// Send auth token after connection
+class AuthenticatedWebSocket {
+    constructor(url, token) {
+        this.url = url;
+        this.token = token;
+        this.authenticated = false;
+    }
+    
+    connect() {
+        this.ws = new WebSocket(this.url);
+        
+        this.ws.onopen = () => {
+            // Send authentication message
+            this.send({
+                type: 'auth',
+                token: this.token
+            });
+        };
+        
+        this.ws.onmessage = (event) => {
+            const message = JSON.parse(event.data);
+            
+            if (message.type === 'auth-success') {
+                this.authenticated = true;
+                this.onAuthenticated();
+            } else if (message.type === 'auth-error') {
+                this.onAuthError(message.error);
+            } else if (this.authenticated) {
+                this.handleMessage(message);
+            }
+        };
+    }
+    
+    send(data) {
+        if (this.ws && this.ws.readyState === WebSocket.OPEN) {
+            this.ws.send(JSON.stringify(data));
+        }
+    }
+    
+    onAuthenticated() {
+        console.log('WebSocket authenticated');
+    }
+    
+    onAuthError(error) {
+        console.error('Authentication failed:', error);
+    }
+    
+    handleMessage(message) {
+        // Handle authenticated messages
+    }
+}
+```
+
+## Message Format
+
+### Standard Message Structure
+
+```typescript
+interface WebSocketMessage {
+    type: string;           // Message type identifier
+    data?: any;            // Message payload
+    timestamp?: number;    // Unix timestamp
+    id?: string;          // Message ID for tracking
+    error?: string;       // Error message if applicable
+}
+```
+
+### Common Message Types
+
+```javascript
+// Incoming messages from server
+const incomingMessages = {
+    // Synchronization
+    'sync': {
+        type: 'sync',
+        data: {
+            entityChanges: [],
+            lastSyncedPush: 12345
+        }
+    },
+    
+    // Entity changes
+    'entity-changes': {
+        type: 'entity-changes',
+        data: [
+            {
+                entityName: 'notes',
+                entityId: 'noteId123',
+                action: 'update',
+                entity: { /* note data */ }
+            }
+        ]
+    },
+    
+    // Note events
+    'note-created': {
+        type: 'note-created',
+        data: {
+            noteId: 'newNoteId',
+            title: 'New Note',
+            parentNoteId: 'parentId'
+        }
+    },
+    
+    'note-updated': {
+        type: 'note-updated',
+        data: {
+            noteId: 'noteId123',
+            changes: { title: 'Updated Title' }
+        }
+    },
+    
+    'note-deleted': {
+        type: 'note-deleted',
+        data: {
+            noteId: 'deletedNoteId'
+        }
+    },
+    
+    // Tree structure changes
+    'refresh-tree': {
+        type: 'refresh-tree',
+        data: {
+            noteId: 'affectedNoteId'
+        }
+    },
+    
+    // Script execution
+    'frontend-script': {
+        type: 'frontend-script',
+        data: {
+            script: 'console.log("Hello from backend")',
+            params: { key: 'value' }
+        }
+    },
+    
+    // Progress updates
+    'progress-update': {
+        type: 'progress-update',
+        data: {
+            taskId: 'task123',
+            progress: 75,
+            message: 'Processing...'
+        }
+    },
+    
+    // LLM streaming
+    'llm-stream': {
+        type: 'llm-stream',
+        chatNoteId: 'chatNote123',
+        content: 'Streaming response...',
+        done: false
+    }
+};
+
+// Outgoing messages to server
+const outgoingMessages = {
+    // Keep-alive ping
+    'ping': {
+        type: 'ping',
+        timestamp: Date.now()
+    },
+    
+    // Client logging
+    'log-error': {
+        type: 'log-error',
+        error: 'Error message',
+        stack: 'Stack trace'
+    },
+    
+    'log-info': {
+        type: 'log-info',
+        info: 'Information message'
+    },
+    
+    // Custom events
+    'custom-event': {
+        type: 'custom-event',
+        data: {
+            eventName: 'user-action',
+            payload: { /* custom data */ }
+        }
+    }
+};
+```
+
+## Event Types
+
+### System Events
+
+```javascript
+class TriliumEventHandler {
+    constructor(wsManager) {
+        this.wsManager = wsManager;
+        this.setupEventHandlers();
+    }
+    
+    setupEventHandlers() {
+        // Connection events
+        this.wsManager.on('open', () => {
+            console.log('Connected to Trilium');
+            this.onConnect();
+        });
+        
+        this.wsManager.on('close', () => {
+            console.log('Disconnected from Trilium');
+            this.onDisconnect();
+        });
+        
+        this.wsManager.on('error', (error) => {
+            console.error('WebSocket error:', error);
+            this.onError(error);
+        });
+        
+        this.wsManager.on('reconnecting', (info) => {
+            console.log(`Reconnecting... Attempt ${info.attempt}`);
+            this.onReconnecting(info);
+        });
+        
+        // Trilium-specific events
+        this.wsManager.on('sync', (data) => {
+            this.handleSync(data);
+        });
+        
+        this.wsManager.on('entity-changes', (changes) => {
+            this.handleEntityChanges(changes);
+        });
+        
+        this.wsManager.on('note-created', (note) => {
+            this.handleNoteCreated(note);
+        });
+        
+        this.wsManager.on('note-updated', (update) => {
+            this.handleNoteUpdated(update);
+        });
+        
+        this.wsManager.on('note-deleted', (deletion) => {
+            this.handleNoteDeleted(deletion);
+        });
+        
+        this.wsManager.on('refresh-tree', (data) => {
+            this.handleTreeRefresh(data);
+        });
+    }
+    
+    onConnect() {
+        // Update UI to show connected status
+        this.updateConnectionStatus('connected');
+    }
+    
+    onDisconnect() {
+        // Update UI to show disconnected status
+        this.updateConnectionStatus('disconnected');
+    }
+    
+    onError(error) {
+        // Handle error
+        this.showError(error.message);
+    }
+    
+    onReconnecting(info) {
+        // Show reconnection status
+        this.updateConnectionStatus(`reconnecting (${info.attempt})`);
+    }
+    
+    handleSync(data) {
+        console.log('Sync data received:', data);
+        // Process synchronization data
+        if (data.entityChanges && data.entityChanges.length > 0) {
+            this.processSyncChanges(data.entityChanges);
+        }
+    }
+    
+    handleEntityChanges(changes) {
+        console.log('Entity changes:', changes);
+        
+        changes.forEach(change => {
+            switch (change.entityName) {
+                case 'notes':
+                    this.processNoteChange(change);
+                    break;
+                case 'branches':
+                    this.processBranchChange(change);
+                    break;
+                case 'attributes':
+                    this.processAttributeChange(change);
+                    break;
+            }
+        });
+    }
+    
+    handleNoteCreated(note) {
+        console.log('Note created:', note);
+        // Update local cache
+        this.addNoteToCache(note);
+        // Update UI
+        this.addNoteToTree(note);
+    }
+    
+    handleNoteUpdated(update) {
+        console.log('Note updated:', update);
+        // Update local cache
+        this.updateNoteInCache(update.noteId, update.changes);
+        // Update UI if note is visible
+        if (this.isNoteVisible(update.noteId)) {
+            this.refreshNoteDisplay(update.noteId);
+        }
+    }
+    
+    handleNoteDeleted(deletion) {
+        console.log('Note deleted:', deletion);
+        // Remove from cache
+        this.removeNoteFromCache(deletion.noteId);
+        // Update UI
+        this.removeNoteFromTree(deletion.noteId);
+    }
+    
+    handleTreeRefresh(data) {
+        console.log('Tree refresh requested:', data);
+        // Refresh tree structure
+        this.refreshTreeBranch(data.noteId);
+    }
+    
+    // Placeholder methods for UI updates
+    updateConnectionStatus(status) { /* ... */ }
+    showError(message) { /* ... */ }
+    processSyncChanges(changes) { /* ... */ }
+    processNoteChange(change) { /* ... */ }
+    processBranchChange(change) { /* ... */ }
+    processAttributeChange(change) { /* ... */ }
+    addNoteToCache(note) { /* ... */ }
+    addNoteToTree(note) { /* ... */ }
+    updateNoteInCache(noteId, changes) { /* ... */ }
+    isNoteVisible(noteId) { /* ... */ }
+    refreshNoteDisplay(noteId) { /* ... */ }
+    removeNoteFromCache(noteId) { /* ... */ }
+    removeNoteFromTree(noteId) { /* ... */ }
+    refreshTreeBranch(noteId) { /* ... */ }
+}
+```
+
+## Real-time Synchronization
+
+### Sync Protocol Implementation
+
+```javascript
+class TriliumSyncManager {
+    constructor(wsManager) {
+        this.wsManager = wsManager;
+        this.lastSyncedPush = null;
+        this.pendingChanges = [];
+        this.syncInProgress = false;
+        
+        this.setupSyncHandlers();
+    }
+    
+    setupSyncHandlers() {
+        this.wsManager.on('sync', (data) => {
+            this.handleIncomingSync(data);
+        });
+        
+        this.wsManager.on('sync-complete', (data) => {
+            this.onSyncComplete(data);
+        });
+        
+        this.wsManager.on('sync-error', (error) => {
+            this.onSyncError(error);
+        });
+    }
+    
+    async handleIncomingSync(syncData) {
+        console.log('Processing sync data:', syncData);
+        
+        this.syncInProgress = true;
+        
+        try {
+            // Process entity changes in order
+            for (const change of syncData.entityChanges) {
+                await this.processEntityChange(change);
+            }
+            
+            // Update sync position
+            this.lastSyncedPush = syncData.lastSyncedPush;
+            
+            // Send acknowledgment
+            this.wsManager.send({
+                type: 'sync-ack',
+                lastSyncedPush: this.lastSyncedPush
+            });
+            
+        } catch (error) {
+            console.error('Sync processing error:', error);
+            this.wsManager.send({
+                type: 'sync-error',
+                error: error.message,
+                lastSyncedPush: this.lastSyncedPush
+            });
+        } finally {
+            this.syncInProgress = false;
+            this.processPendingChanges();
+        }
+    }
+    
+    async processEntityChange(change) {
+        const { entityName, entityId, action, entity } = change;
+        
+        console.log(`Processing ${action} for ${entityName}:${entityId}`);
+        
+        switch (entityName) {
+            case 'notes':
+                await this.processNoteChange(action, entityId, entity);
+                break;
+            case 'branches':
+                await this.processBranchChange(action, entityId, entity);
+                break;
+            case 'attributes':
+                await this.processAttributeChange(action, entityId, entity);
+                break;
+            case 'note_contents':
+                await this.processContentChange(action, entityId, entity);
+                break;
+        }
+    }
+    
+    async processNoteChange(action, noteId, noteData) {
+        switch (action) {
+            case 'create':
+                await this.createNote(noteId, noteData);
+                break;
+            case 'update':
+                await this.updateNote(noteId, noteData);
+                break;
+            case 'delete':
+                await this.deleteNote(noteId);
+                break;
+        }
+    }
+    
+    async createNote(noteId, noteData) {
+        // Add to local database/cache
+        await localDB.notes.add({
+            ...noteData,
+            noteId,
+            syncVersion: this.lastSyncedPush
+        });
+        
+        // Emit event for UI update
+        this.emit('note-created', { noteId, noteData });
+    }
+    
+    async updateNote(noteId, updates) {
+        // Update local database/cache
+        await localDB.notes.update(noteId, {
+            ...updates,
+            syncVersion: this.lastSyncedPush
+        });
+        
+        // Emit event for UI update
+        this.emit('note-updated', { noteId, updates });
+    }
+    
+    async deleteNote(noteId) {
+        // Remove from local database/cache
+        await localDB.notes.delete(noteId);
+        
+        // Emit event for UI update
+        this.emit('note-deleted', { noteId });
+    }
+    
+    // Send local changes to server
+    async pushLocalChanges() {
+        if (this.syncInProgress) {
+            return;
+        }
+        
+        const localChanges = await this.getLocalChanges();
+        
+        if (localChanges.length === 0) {
+            return;
+        }
+        
+        this.wsManager.send({
+            type: 'push-changes',
+            changes: localChanges,
+            lastSyncedPull: this.lastSyncedPull
+        });
+    }
+    
+    async getLocalChanges() {
+        // Get changes from local database that haven't been synced
+        const changes = await localDB.changes
+            .where('syncVersion')
+            .above(this.lastSyncedPush || 0)
+            .toArray();
+        
+        return changes;
+    }
+    
+    processPendingChanges() {
+        if (this.pendingChanges.length > 0 && !this.syncInProgress) {
+            const changes = this.pendingChanges.splice(0);
+            this.handleIncomingSync({ entityChanges: changes });
+        }
+    }
+    
+    emit(event, data) {
+        // Emit events to application
+        window.dispatchEvent(new CustomEvent(`trilium:${event}`, { detail: data }));
+    }
+}
+```
+
+### Conflict Resolution
+
+```javascript
+class ConflictResolver {
+    constructor(syncManager) {
+        this.syncManager = syncManager;
+    }
+    
+    async resolveConflict(localEntity, remoteEntity) {
+        // Compare timestamps
+        const localTime = new Date(localEntity.utcDateModified).getTime();
+        const remoteTime = new Date(remoteEntity.utcDateModified).getTime();
+        
+        if (localTime === remoteTime) {
+            // Same timestamp, compare content
+            return this.resolveByContent(localEntity, remoteEntity);
+        }
+        
+        // Default: last-write-wins
+        if (remoteTime > localTime) {
+            return {
+                winner: 'remote',
+                entity: remoteEntity,
+                backup: localEntity
+            };
+        } else {
+            return {
+                winner: 'local',
+                entity: localEntity,
+                backup: remoteEntity
+            };
+        }
+    }
+    
+    resolveByContent(localEntity, remoteEntity) {
+        // Create three-way merge if possible
+        const baseEntity = this.getBaseEntity(localEntity.entityId);
+        
+        if (baseEntity) {
+            return this.threeWayMerge(baseEntity, localEntity, remoteEntity);
+        }
+        
+        // Fall back to manual resolution
+        return this.promptUserResolution(localEntity, remoteEntity);
+    }
+    
+    threeWayMerge(base, local, remote) {
+        // Implement three-way merge logic
+        const merged = { ...base };
+        
+        // Merge each property
+        for (const key in local) {
+            if (local[key] !== base[key] && remote[key] !== base[key]) {
+                // Both changed - conflict
+                if (local[key] === remote[key]) {
+                    // Same change
+                    merged[key] = local[key];
+                } else {
+                    // Different changes - need resolution
+                    merged[key] = this.mergeProperty(key, base[key], local[key], remote[key]);
+                }
+            } else if (local[key] !== base[key]) {
+                // Only local changed
+                merged[key] = local[key];
+            } else if (remote[key] !== base[key]) {
+                // Only remote changed
+                merged[key] = remote[key];
+            }
+        }
+        
+        return {
+            winner: 'merged',
+            entity: merged,
+            localChanges: this.diff(base, local),
+            remoteChanges: this.diff(base, remote)
+        };
+    }
+    
+    mergeProperty(key, base, local, remote) {
+        // Property-specific merge strategies
+        switch (key) {
+            case 'content':
+                // For content, try text merge
+                return this.mergeText(base, local, remote);
+            case 'attributes':
+                // For attributes, merge arrays
+                return this.mergeArrays(base, local, remote);
+            default:
+                // Default to remote for safety
+                return remote;
+        }
+    }
+    
+    async promptUserResolution(local, remote) {
+        // Show conflict resolution UI
+        const resolution = await this.showConflictDialog({
+            local,
+            remote,
+            diff: this.diff(local, remote)
+        });
+        
+        return resolution;
+    }
+    
+    diff(obj1, obj2) {
+        const changes = {};
+        
+        for (const key in obj2) {
+            if (obj1[key] !== obj2[key]) {
+                changes[key] = {
+                    old: obj1[key],
+                    new: obj2[key]
+                };
+            }
+        }
+        
+        return changes;
+    }
+}
+```
+
+## Custom Event Broadcasting
+
+### Creating Custom Events
+
+```javascript
+class CustomEventBroadcaster {
+    constructor(wsManager) {
+        this.wsManager = wsManager;
+        this.eventListeners = new Map();
+    }
+    
+    // Broadcast event to all connected clients
+    broadcast(eventName, data) {
+        this.wsManager.send({
+            type: 'custom-broadcast',
+            eventName,
+            data,
+            timestamp: Date.now()
+        });
+    }
+    
+    // Send event to specific clients
+    sendToClients(clientIds, eventName, data) {
+        this.wsManager.send({
+            type: 'targeted-broadcast',
+            targets: clientIds,
+            eventName,
+            data,
+            timestamp: Date.now()
+        });
+    }
+    
+    // Subscribe to custom events
+    subscribe(eventName, handler) {
+        if (!this.eventListeners.has(eventName)) {
+            this.eventListeners.set(eventName, []);
+        }
+        
+        this.eventListeners.get(eventName).push(handler);
+        
+        // Register with server
+        this.wsManager.send({
+            type: 'subscribe',
+            eventName
+        });
+    }
+    
+    // Unsubscribe from events
+    unsubscribe(eventName, handler) {
+        const handlers = this.eventListeners.get(eventName);
+        if (handlers) {
+            const index = handlers.indexOf(handler);
+            if (index !== -1) {
+                handlers.splice(index, 1);
+            }
+            
+            if (handlers.length === 0) {
+                this.eventListeners.delete(eventName);
+                
+                // Unregister with server
+                this.wsManager.send({
+                    type: 'unsubscribe',
+                    eventName
+                });
+            }
+        }
+    }
+    
+    // Handle incoming custom events
+    handleCustomEvent(message) {
+        const { eventName, data } = message;
+        const handlers = this.eventListeners.get(eventName);
+        
+        if (handlers) {
+            handlers.forEach(handler => {
+                try {
+                    handler(data);
+                } catch (error) {
+                    console.error(`Error handling custom event ${eventName}:`, error);
+                }
+            });
+        }
+    }
+}
+
+// Usage example
+const broadcaster = new CustomEventBroadcaster(wsManager);
+
+// Subscribe to custom events
+broadcaster.subscribe('user-joined', (data) => {
+    console.log(`User ${data.username} joined`);
+});
+
+broadcaster.subscribe('collaborative-edit', (data) => {
+    console.log(`Edit on note ${data.noteId}: ${data.change}`);
+});
+
+// Broadcast custom event
+broadcaster.broadcast('user-action', {
+    action: 'viewed-note',
+    noteId: 'abc123',
+    userId: 'user456'
+});
+```
+
+### Collaborative Features
+
+```javascript
+class CollaborationManager {
+    constructor(wsManager, userId) {
+        this.wsManager = wsManager;
+        this.userId = userId;
+        this.activeSessions = new Map();
+        this.cursorPositions = new Map();
+        
+        this.setupCollaborationHandlers();
+    }
+    
+    setupCollaborationHandlers() {
+        this.wsManager.on('collab-session-started', (data) => {
+            this.handleSessionStarted(data);
+        });
+        
+        this.wsManager.on('collab-user-joined', (data) => {
+            this.handleUserJoined(data);
+        });
+        
+        this.wsManager.on('collab-user-left', (data) => {
+            this.handleUserLeft(data);
+        });
+        
+        this.wsManager.on('collab-cursor-update', (data) => {
+            this.handleCursorUpdate(data);
+        });
+        
+        this.wsManager.on('collab-selection-update', (data) => {
+            this.handleSelectionUpdate(data);
+        });
+        
+        this.wsManager.on('collab-content-change', (data) => {
+            this.handleContentChange(data);
+        });
+    }
+    
+    startCollaborationSession(noteId) {
+        this.wsManager.send({
+            type: 'start-collab-session',
+            noteId,
+            userId: this.userId
+        });
+        
+        const session = {
+            noteId,
+            users: new Set([this.userId]),
+            startTime: Date.now()
+        };
+        
+        this.activeSessions.set(noteId, session);
+        
+        return session;
+    }
+    
+    joinCollaborationSession(noteId) {
+        this.wsManager.send({
+            type: 'join-collab-session',
+            noteId,
+            userId: this.userId
+        });
+    }
+    
+    leaveCollaborationSession(noteId) {
+        this.wsManager.send({
+            type: 'leave-collab-session',
+            noteId,
+            userId: this.userId
+        });
+        
+        this.activeSessions.delete(noteId);
+    }
+    
+    sendCursorPosition(noteId, position) {
+        this.wsManager.send({
+            type: 'collab-cursor-update',
+            noteId,
+            userId: this.userId,
+            position
+        });
+    }
+    
+    sendSelectionUpdate(noteId, selection) {
+        this.wsManager.send({
+            type: 'collab-selection-update',
+            noteId,
+            userId: this.userId,
+            selection
+        });
+    }
+    
+    sendContentChange(noteId, change) {
+        this.wsManager.send({
+            type: 'collab-content-change',
+            noteId,
+            userId: this.userId,
+            change
+        });
+    }
+    
+    handleSessionStarted(data) {
+        const { noteId, users } = data;
+        
+        const session = {
+            noteId,
+            users: new Set(users),
+            startTime: Date.now()
+        };
+        
+        this.activeSessions.set(noteId, session);
+        
+        // Update UI to show collaboration indicators
+        this.showCollaborationIndicator(noteId, users);
+    }
+    
+    handleUserJoined(data) {
+        const { noteId, userId, userInfo } = data;
+        const session = this.activeSessions.get(noteId);
+        
+        if (session) {
+            session.users.add(userId);
+            this.showUserJoinedNotification(userInfo);
+        }
+    }
+    
+    handleUserLeft(data) {
+        const { noteId, userId } = data;
+        const session = this.activeSessions.get(noteId);
+        
+        if (session) {
+            session.users.delete(userId);
+            this.removeUserCursor(userId);
+        }
+    }
+    
+    handleCursorUpdate(data) {
+        const { userId, position } = data;
+        
+        if (userId !== this.userId) {
+            this.cursorPositions.set(userId, position);
+            this.updateUserCursor(userId, position);
+        }
+    }
+    
+    handleSelectionUpdate(data) {
+        const { userId, selection } = data;
+        
+        if (userId !== this.userId) {
+            this.updateUserSelection(userId, selection);
+        }
+    }
+    
+    handleContentChange(data) {
+        const { noteId, userId, change } = data;
+        
+        if (userId !== this.userId) {
+            this.applyRemoteChange(noteId, change);
+        }
+    }
+    
+    // UI update methods (implement based on your UI framework)
+    showCollaborationIndicator(noteId, users) { /* ... */ }
+    showUserJoinedNotification(userInfo) { /* ... */ }
+    removeUserCursor(userId) { /* ... */ }
+    updateUserCursor(userId, position) { /* ... */ }
+    updateUserSelection(userId, selection) { /* ... */ }
+    applyRemoteChange(noteId, change) { /* ... */ }
+}
+```
+
+## Client Implementation Examples
+
+### React Hook
+
+```
+// useWebSocket.js
+import { useEffect, useRef, useState, useCallback } from 'react';
+
+export function useTriliumWebSocket(url, options = {}) {
+    const [isConnected, setIsConnected] = useState(false);
+    const [lastMessage, setLastMessage] = useState(null);
+    const [error, setError] = useState(null);
+    
+    const wsManager = useRef(null);
+    const messageHandlers = useRef(new Map());
+    
+    useEffect(() => {
+        wsManager.current = new TriliumWebSocketManager(url, options);
+        
+        wsManager.current.on('open', () => {
+            setIsConnected(true);
+            setError(null);
+        });
+        
+        wsManager.current.on('close', () => {
+            setIsConnected(false);
+        });
+        
+        wsManager.current.on('error', (err) => {
+            setError(err);
+        });
+        
+        wsManager.current.on('message', (msg) => {
+            setLastMessage(msg);
+            
+            // Call registered handlers
+            const handler = messageHandlers.current.get(msg.type);
+            if (handler) {
+                handler(msg.data || msg);
+            }
+        });
+        
+        wsManager.current.connect();
+        
+        return () => {
+            wsManager.current.close();
+        };
+    }, [url]);
+    
+    const sendMessage = useCallback((message) => {
+        if (wsManager.current) {
+            wsManager.current.send(message);
+        }
+    }, []);
+    
+    const subscribe = useCallback((messageType, handler) => {
+        messageHandlers.current.set(messageType, handler);
+        
+        return () => {
+            messageHandlers.current.delete(messageType);
+        };
+    }, []);
+    
+    return {
+        isConnected,
+        lastMessage,
+        error,
+        sendMessage,
+        subscribe
+    };
+}
+
+// Usage in React component
+function TriliumNoteEditor({ noteId }) {
+    const { isConnected, sendMessage, subscribe } = useTriliumWebSocket(
+        'ws://localhost:8080'
+    );
+    
+    const [content, setContent] = useState('');
+    
+    useEffect(() => {
+        // Subscribe to note updates
+        const unsubscribe = subscribe('note-updated', (data) => {
+            if (data.noteId === noteId) {
+                setContent(data.content);
+            }
+        });
+        
+        return unsubscribe;
+    }, [noteId, subscribe]);
+    
+    const handleContentChange = (newContent) => {
+        setContent(newContent);
+        
+        // Send update via WebSocket
+        sendMessage({
+            type: 'update-note',
+            noteId,
+            content: newContent
+        });
+    };
+    
+    return (
+        <div>
+            <div>Connection: {isConnected ? '🟢' : '🔴'}</div>
+            <textarea
+                value={content}
+                onChange={(e) => handleContentChange(e.target.value)}
+            />
+        </div>
+    );
+}
+```
+
+### Vue 3 Composable
+
+```javascript
+// useTriliumWebSocket.js
+import { ref, onMounted, onUnmounted } from 'vue';
+
+export function useTriliumWebSocket(url, options = {}) {
+    const isConnected = ref(false);
+    const lastMessage = ref(null);
+    const error = ref(null);
+    
+    let wsManager = null;
+    const messageHandlers = new Map();
+    
+    onMounted(() => {
+        wsManager = new TriliumWebSocketManager(url, options);
+        
+        wsManager.on('open', () => {
+            isConnected.value = true;
+            error.value = null;
+        });
+        
+        wsManager.on('close', () => {
+            isConnected.value = false;
+        });
+        
+        wsManager.on('error', (err) => {
+            error.value = err;
+        });
+        
+        wsManager.on('message', (msg) => {
+            lastMessage.value = msg;
+            
+            const handler = messageHandlers.get(msg.type);
+            if (handler) {
+                handler(msg.data || msg);
+            }
+        });
+        
+        wsManager.connect();
+    });
+    
+    onUnmounted(() => {
+        if (wsManager) {
+            wsManager.close();
+        }
+    });
+    
+    const sendMessage = (message) => {
+        if (wsManager) {
+            wsManager.send(message);
+        }
+    };
+    
+    const subscribe = (messageType, handler) => {
+        messageHandlers.set(messageType, handler);
+        
+        return () => {
+            messageHandlers.delete(messageType);
+        };
+    };
+    
+    return {
+        isConnected,
+        lastMessage,
+        error,
+        sendMessage,
+        subscribe
+    };
+}
+```
+
+### Angular Service
+
+```typescript
+// trilium-websocket.service.ts
+import { Injectable, OnDestroy } from '@angular/core';
+import { BehaviorSubject, Observable, Subject } from 'rxjs';
+import { filter, map } from 'rxjs/operators';
+
+@Injectable({
+    providedIn: 'root'
+})
+export class TriliumWebSocketService implements OnDestroy {
+    private wsManager: TriliumWebSocketManager | null = null;
+    private isConnected$ = new BehaviorSubject<boolean>(false);
+    private messages$ = new Subject<any>();
+    private error$ = new Subject<Error>();
+    
+    constructor() {}
+    
+    connect(url: string, options: any = {}): void {
+        this.wsManager = new TriliumWebSocketManager(url, options);
+        
+        this.wsManager.on('open', () => {
+            this.isConnected$.next(true);
+        });
+        
+        this.wsManager.on('close', () => {
+            this.isConnected$.next(false);
+        });
+        
+        this.wsManager.on('error', (error) => {
+            this.error$.next(error);
+        });
+        
+        this.wsManager.on('message', (message) => {
+            this.messages$.next(message);
+        });
+        
+        this.wsManager.connect();
+    }
+    
+    disconnect(): void {
+        if (this.wsManager) {
+            this.wsManager.close();
+            this.wsManager = null;
+        }
+    }
+    
+    send(message: any): void {
+        if (this.wsManager) {
+            this.wsManager.send(message);
+        }
+    }
+    
+    getConnectionStatus(): Observable<boolean> {
+        return this.isConnected$.asObservable();
+    }
+    
+    getMessages(): Observable<any> {
+        return this.messages$.asObservable();
+    }
+    
+    getMessagesByType(type: string): Observable<any> {
+        return this.messages$.pipe(
+            filter(msg => msg.type === type),
+            map(msg => msg.data || msg)
+        );
+    }
+    
+    getErrors(): Observable<Error> {
+        return this.error$.asObservable();
+    }
+    
+    ngOnDestroy(): void {
+        this.disconnect();
+    }
+}
+```
+
+## Debugging WebSocket Connections
+
+### Debug Logger
+
+```javascript
+class WebSocketDebugger {
+    constructor(wsManager, options = {}) {
+        this.wsManager = wsManager;
+        this.options = {
+            logMessages: true,
+            logEvents: true,
+            logErrors: true,
+            maxLogSize: 100,
+            ...options
+        };
+        
+        this.logs = [];
+        this.stats = {
+            messagesSent: 0,
+            messagesReceived: 0,
+            bytesReceived: 0,
+            errors: 0,
+            reconnects: 0,
+            latency: []
+        };
+        
+        this.setupDebugHandlers();
+    }
+    
+    setupDebugHandlers() {
+        // Intercept send method
+        const originalSend = this.wsManager.send.bind(this.wsManager);
+        this.wsManager.send = (data) => {
+            this.logOutgoing(data);
+            this.stats.messagesSent++;
+            return originalSend(data);
+        };
+        
+        // Log incoming messages
+        this.wsManager.on('message', (message) => {
+            this.logIncoming(message);
+            this.stats.messagesReceived++;
+        });
+        
+        // Log events
+        this.wsManager.on('open', () => {
+            this.logEvent('Connected');
+        });
+        
+        this.wsManager.on('close', (event) => {
+            this.logEvent(`Disconnected (code: ${event.code})`);
+        });
+        
+        this.wsManager.on('error', (error) => {
+            this.logError(error);
+            this.stats.errors++;
+        });
+        
+        this.wsManager.on('reconnecting', (info) => {
+            this.logEvent(`Reconnecting (attempt ${info.attempt})`);
+            this.stats.reconnects++;
+        });
+        
+        this.wsManager.on('latency', (latency) => {
+            this.stats.latency.push(latency);
+            if (this.stats.latency.length > 100) {
+                this.stats.latency.shift();
+            }
+        });
+    }
+    
+    logOutgoing(data) {
+        if (this.options.logMessages) {
+            this.addLog('OUT', data);
+            console.log('%c→ OUT', 'color: #4CAF50', data);
+        }
+    }
+    
+    logIncoming(data) {
+        if (this.options.logMessages) {
+            this.addLog('IN', data);
+            console.log('%c← IN', 'color: #2196F3', data);
+        }
+        
+        // Track data size
+        const size = JSON.stringify(data).length;
+        this.stats.bytesReceived += size;
+    }
+    
+    logEvent(event) {
+        if (this.options.logEvents) {
+            this.addLog('EVENT', event);
+            console.log('%c● EVENT', 'color: #FF9800', event);
+        }
+    }
+    
+    logError(error) {
+        if (this.options.logErrors) {
+            this.addLog('ERROR', error);
+            console.error('WebSocket Error:', error);
+        }
+    }
+    
+    addLog(type, data) {
+        const log = {
+            type,
+            data,
+            timestamp: new Date().toISOString()
+        };
+        
+        this.logs.push(log);
+        
+        // Limit log size
+        if (this.logs.length > this.options.maxLogSize) {
+            this.logs.shift();
+        }
+    }
+    
+    getStats() {
+        const avgLatency = this.stats.latency.length > 0
+            ? this.stats.latency.reduce((a, b) => a + b, 0) / this.stats.latency.length
+            : 0;
+        
+        return {
+            ...this.stats,
+            averageLatency: avgLatency,
+            currentLatency: this.stats.latency[this.stats.latency.length - 1] || 0
+        };
+    }
+    
+    getLogs(filter = null) {
+        if (filter) {
+            return this.logs.filter(log => log.type === filter);
+        }
+        return this.logs;
+    }
+    
+    exportLogs() {
+        const data = {
+            logs: this.logs,
+            stats: this.getStats(),
+            timestamp: new Date().toISOString()
+        };
+        
+        const blob = new Blob([JSON.stringify(data, null, 2)], {
+            type: 'application/json'
+        });
+        
+        const url = URL.createObjectURL(blob);
+        const a = document.createElement('a');
+        a.href = url;
+        a.download = `websocket-debug-${Date.now()}.json`;
+        a.click();
+        
+        URL.revokeObjectURL(url);
+    }
+    
+    createDebugPanel() {
+        const panel = document.createElement('div');
+        panel.id = 'ws-debug-panel';
+        panel.innerHTML = `
+            <style>
+                #ws-debug-panel {
+                    position: fixed;
+                    bottom: 0;
+                    right: 0;
+                    width: 400px;
+                    height: 300px;
+                    background: #1e1e1e;
+                    color: #fff;
+                    font-family: monospace;
+                    font-size: 12px;
+                    z-index: 10000;
+                    display: flex;
+                    flex-direction: column;
+                }
+                #ws-debug-header {
+                    padding: 10px;
+                    background: #2d2d2d;
+                    display: flex;
+                    justify-content: space-between;
+                }
+                #ws-debug-stats {
+                    padding: 10px;
+                    border-bottom: 1px solid #444;
+                }
+                #ws-debug-logs {
+                    flex: 1;
+                    overflow-y: auto;
+                    padding: 10px;
+                }
+                .ws-log-entry {
+                    margin-bottom: 5px;
+                    padding: 5px;
+                    background: #2d2d2d;
+                    border-radius: 3px;
+                }
+                .ws-log-out { border-left: 3px solid #4CAF50; }
+                .ws-log-in { border-left: 3px solid #2196F3; }
+                .ws-log-event { border-left: 3px solid #FF9800; }
+                .ws-log-error { border-left: 3px solid #f44336; }
+            </style>
+            <div id="ws-debug-header">
+                <span>WebSocket Debug</span>
+                <button onclick="this.parentElement.parentElement.remove()">✕</button>
+            </div>
+            <div id="ws-debug-stats"></div>
+            <div id="ws-debug-logs"></div>
+        `;
+        
+        document.body.appendChild(panel);
+        
+        // Update stats periodically
+        setInterval(() => {
+            this.updateDebugPanel();
+        }, 1000);
+    }
+    
+    updateDebugPanel() {
+        const statsEl = document.getElementById('ws-debug-stats');
+        const logsEl = document.getElementById('ws-debug-logs');
+        
+        if (!statsEl || !logsEl) return;
+        
+        const stats = this.getStats();
+        statsEl.innerHTML = `
+            <div>Sent: ${stats.messagesSent} | Received: ${stats.messagesReceived}</div>
+            <div>Bytes: ${(stats.bytesReceived / 1024).toFixed(2)} KB</div>
+            <div>Latency: ${stats.currentLatency}ms (avg: ${stats.averageLatency.toFixed(1)}ms)</div>
+            <div>Errors: ${stats.errors} | Reconnects: ${stats.reconnects}</div>
+        `;
+        
+        // Show recent logs
+        const recentLogs = this.logs.slice(-10);
+        logsEl.innerHTML = recentLogs.map(log => `
+            <div class="ws-log-entry ws-log-${log.type.toLowerCase()}">
+                <small>${new Date(log.timestamp).toLocaleTimeString()}</small>
+                ${log.type}: ${typeof log.data === 'object' ? JSON.stringify(log.data).substring(0, 100) : log.data}
+            </div>
+        `).join('');
+    }
+}
+
+// Usage
+const debugger = new WebSocketDebugger(wsManager, {
+    logMessages: true,
+    logEvents: true,
+    logErrors: true
+});
+
+// Create visual debug panel
+debugger.createDebugPanel();
+
+// Export logs for analysis
+debugger.exportLogs();
+```
+
+## Best Practices
+
+### 1\. Connection Management
+
+*   Always implement reconnection logic with exponential backoff
+*   Handle connection state changes gracefully
+*   Queue messages during disconnection
+*   Implement heartbeat/ping mechanism
+
+### 2\. Message Handling
+
+*   Always validate incoming message format
+*   Use structured message types
+*   Implement message acknowledgment for critical operations
+*   Handle message ordering and deduplication
+
+### 3\. Error Recovery
+
+*   Implement comprehensive error handling
+*   Log errors for debugging
+*   Provide user feedback for connection issues
+*   Implement fallback mechanisms
+
+### 4\. Performance
+
+*   Batch messages when possible
+*   Implement message compression for large payloads
+*   Use binary frames for file transfers
+*   Limit message frequency (throttle/debounce)
+
+### 5\. Security
+
+*   Always use WSS (WebSocket Secure) in production
+*   Validate all incoming data
+*   Implement rate limiting
+*   Use authentication tokens with expiration
+
+## Conclusion
+
+The Trilium WebSocket API provides powerful real-time capabilities for building responsive, collaborative applications. Key takeaways:
+
+1.  **Use WebSocket for real-time features** - synchronization, collaboration, live updates
+2.  **Implement robust connection management** - reconnection, queuing, state handling
+3.  **Handle all message types** - system events, custom events, errors
+4.  **Debug thoroughly** - use logging, monitoring, and debugging tools
+5.  **Follow best practices** - security, performance, error handling
+
+For more information:
+
+*   [Internal API Reference](Internal%20API%20Reference.md)
+*   [ETAPI Complete Guide](ETAPI%20Complete%20Guide.md)
+*   [API Client Libraries](API%20Client%20Libraries.md)
\ No newline at end of file
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+# API-Architecture
+## API Architecture
+
+Trilium provides multiple API layers for different use cases: Internal API for frontend-backend communication, ETAPI for external integrations, and WebSocket for real-time synchronization. This document details each API layer's design, usage, and best practices.
+
+## API Layers Overview
+
+```
+graph TB
+    subgraph "Client Applications"
+        WebApp[Web Application]
+        Desktop[Desktop App]
+        Mobile[Mobile App]
+        External[External Apps]
+        Scripts[User Scripts]
+    end
+    
+    subgraph "API Layers"
+        Internal[Internal API<br/>REST + WebSocket]
+        ETAPI[ETAPI<br/>External API]
+        WS[WebSocket<br/>Real-time Sync]
+    end
+    
+    subgraph "Backend Services"
+        Routes[Route Handlers]
+        Services[Business Logic]
+        Becca[Becca Cache]
+        DB[(Database)]
+    end
+    
+    WebApp --> Internal
+    Desktop --> Internal
+    Mobile --> Internal
+    External --> ETAPI
+    Scripts --> ETAPI
+    
+    Internal --> Routes
+    ETAPI --> Routes
+    WS --> Services
+    
+    Routes --> Services
+    Services --> Becca
+    Becca --> DB
+    
+    style Internal fill:#e3f2fd
+    style ETAPI fill:#fff3e0
+    style WS fill:#f3e5f5
+```
+
+## Internal API
+
+**Location**: `/apps/server/src/routes/api/`
+
+The Internal API handles communication between Trilium's frontend and backend, providing full access to application functionality.
+
+### Architecture
+
+```typescript
+// Route structure
+/api/
+├── notes.ts           // Note operations
+├── branches.ts        // Branch management
+├── attributes.ts      // Attribute operations
+├── tree.ts           // Tree structure
+├── search.ts         // Search functionality
+├── sync.ts           // Synchronization
+├── options.ts        // Configuration
+└── special.ts        // Special operations
+```
+
+### Request/Response Pattern
+
+```typescript
+// Typical API endpoint structure
+router.get('/notes/:noteId', (req, res) => {
+    const note = becca.getNote(req.params.noteId);
+    
+    if (!note) {
+        return res.status(404).json({ 
+            error: 'Note not found' 
+        });
+    }
+    
+    res.json(note.getPojo());
+});
+
+router.put('/notes/:noteId', (req, res) => {
+    const note = becca.getNoteOrThrow(req.params.noteId);
+    
+    note.title = req.body.title;
+    note.content = req.body.content;
+    note.save();
+    
+    res.json({ success: true });
+});
+```
+
+### Key Endpoints
+
+#### Note Operations
+
+```typescript
+// Get note with content
+GET /api/notes/:noteId
+Response: {
+    noteId: string,
+    title: string,
+    type: string,
+    content: string,
+    dateCreated: string,
+    dateModified: string
+}
+
+// Update note
+PUT /api/notes/:noteId
+Body: {
+    title?: string,
+    content?: string,
+    type?: string,
+    mime?: string
+}
+
+// Create note
+POST /api/notes/:parentNoteId/children
+Body: {
+    title: string,
+    type: string,
+    content?: string,
+    position?: number
+}
+
+// Delete note
+DELETE /api/notes/:noteId
+```
+
+#### Tree Operations
+
+```typescript
+// Get tree structure
+GET /api/tree
+Query: {
+    subTreeNoteId?: string,
+    includeAttributes?: boolean
+}
+Response: {
+    notes: FNoteRow[],
+    branches: FBranchRow[],
+    attributes: FAttributeRow[]
+}
+
+// Move branch
+PUT /api/branches/:branchId/move
+Body: {
+    parentNoteId: string,
+    position: number
+}
+```
+
+#### Search Operations
+
+```typescript
+// Execute search
+GET /api/search
+Query: {
+    query: string,
+    fastSearch?: boolean,
+    includeArchivedNotes?: boolean,
+    ancestorNoteId?: string
+}
+Response: {
+    results: Array<{
+        noteId: string,
+        title: string,
+        path: string,
+        score: number
+    }>
+}
+```
+
+### Authentication & Security
+
+```typescript
+// CSRF protection
+app.use(csrfMiddleware);
+
+// Session authentication
+router.use((req, res, next) => {
+    if (!req.session.loggedIn) {
+        return res.status(401).json({ 
+            error: 'Not authenticated' 
+        });
+    }
+    next();
+});
+
+// Protected note access
+router.get('/notes/:noteId', (req, res) => {
+    const note = becca.getNote(req.params.noteId);
+    
+    if (note.isProtected && !protectedSessionService.isProtectedSessionAvailable()) {
+        return res.status(403).json({ 
+            error: 'Protected session required' 
+        });
+    }
+    
+    res.json(note.getPojo());
+});
+```
+
+## ETAPI (External API)
+
+**Location**: `/apps/server/src/etapi/`
+
+ETAPI provides a stable, versioned API for external applications and scripts to interact with Trilium.
+
+### Architecture
+
+```typescript
+// ETAPI structure
+/etapi/
+├── etapi.openapi.yaml    // OpenAPI specification
+├── auth.ts               // Authentication
+├── notes.ts              // Note endpoints
+├── branches.ts           // Branch endpoints
+├── attributes.ts         // Attribute endpoints
+├── attachments.ts        // Attachment endpoints
+└── special_notes.ts      // Special note operations
+```
+
+### Authentication
+
+ETAPI uses token-based authentication:
+
+```typescript
+// Creating ETAPI token
+POST /etapi/auth/login
+Body: {
+    username: string,
+    password: string
+}
+Response: {
+    authToken: string
+}
+
+// Using token in requests
+GET /etapi/notes/:noteId
+Headers: {
+    Authorization: "authToken"
+}
+```
+
+### Key Endpoints
+
+#### Note CRUD Operations
+
+```typescript
+// Create note
+POST /etapi/notes
+Body: {
+    noteId?: string,
+    parentNoteId: string,
+    title: string,
+    type: string,
+    content?: string,
+    position?: number
+}
+
+// Get note
+GET /etapi/notes/:noteId
+Response: {
+    noteId: string,
+    title: string,
+    type: string,
+    mime: string,
+    isProtected: boolean,
+    attributes: Array<{
+        attributeId: string,
+        type: string,
+        name: string,
+        value: string
+    }>,
+    parentNoteIds: string[],
+    childNoteIds: string[],
+    dateCreated: string,
+    dateModified: string
+}
+
+// Update note content
+PUT /etapi/notes/:noteId/content
+Body: string | Buffer
+Headers: {
+    "Content-Type": mime-type
+}
+
+// Delete note
+DELETE /etapi/notes/:noteId
+```
+
+#### Attribute Management
+
+```typescript
+// Create attribute
+POST /etapi/attributes
+Body: {
+    noteId: string,
+    type: 'label' | 'relation',
+    name: string,
+    value: string,
+    isInheritable?: boolean
+}
+
+// Update attribute
+PATCH /etapi/attributes/:attributeId
+Body: {
+    value?: string,
+    isInheritable?: boolean
+}
+```
+
+#### Search
+
+```typescript
+// Search notes
+GET /etapi/notes/search
+Query: {
+    search: string,
+    limit?: number,
+    orderBy?: string,
+    orderDirection?: 'asc' | 'desc'
+}
+Response: {
+    results: Array<{
+        noteId: string,
+        title: string,
+        // Other note properties
+    }>
+}
+```
+
+### Client Libraries
+
+```javascript
+// JavaScript client example
+class EtapiClient {
+    constructor(serverUrl, authToken) {
+        this.serverUrl = serverUrl;
+        this.authToken = authToken;
+    }
+    
+    async getNote(noteId) {
+        const response = await fetch(
+            `${this.serverUrl}/etapi/notes/${noteId}`,
+            {
+                headers: {
+                    'Authorization': this.authToken
+                }
+            }
+        );
+        return response.json();
+    }
+    
+    async createNote(parentNoteId, title, content) {
+        const response = await fetch(
+            `${this.serverUrl}/etapi/notes`,
+            {
+                method: 'POST',
+                headers: {
+                    'Authorization': this.authToken,
+                    'Content-Type': 'application/json'
+                },
+                body: JSON.stringify({
+                    parentNoteId,
+                    title,
+                    type: 'text',
+                    content
+                })
+            }
+        );
+        return response.json();
+    }
+}
+```
+
+### Python Client Example
+
+```python
+import requests
+
+class TriliumETAPI:
+    def __init__(self, server_url, auth_token):
+        self.server_url = server_url
+        self.auth_token = auth_token
+        self.headers = {'Authorization': auth_token}
+    
+    def get_note(self, note_id):
+        response = requests.get(
+            f"{self.server_url}/etapi/notes/{note_id}",
+            headers=self.headers
+        )
+        return response.json()
+    
+    def create_note(self, parent_note_id, title, content=""):
+        response = requests.post(
+            f"{self.server_url}/etapi/notes",
+            headers=self.headers,
+            json={
+                'parentNoteId': parent_note_id,
+                'title': title,
+                'type': 'text',
+                'content': content
+            }
+        )
+        return response.json()
+    
+    def search_notes(self, query):
+        response = requests.get(
+            f"{self.server_url}/etapi/notes/search",
+            headers=self.headers,
+            params={'search': query}
+        )
+        return response.json()
+```
+
+## WebSocket Real-time Synchronization
+
+**Location**: `/apps/server/src/services/ws.ts`
+
+WebSocket connections provide real-time updates and synchronization between clients.
+
+### Architecture
+
+```typescript
+// WebSocket message types
+interface WSMessage {
+    type: string;
+    data: any;
+}
+
+// Common message types
+type MessageType = 
+    | 'entity-changes'      // Entity updates
+    | 'sync'               // Sync events
+    | 'note-content-change' // Content updates
+    | 'refresh-tree'       // Tree structure changes
+    | 'options-changed'    // Configuration updates
+```
+
+### Connection Management
+
+```typescript
+// Client connection
+const ws = new WebSocket('wss://server/ws');
+
+ws.on('open', () => {
+    // Authenticate
+    ws.send(JSON.stringify({
+        type: 'auth',
+        token: sessionToken
+    }));
+});
+
+ws.on('message', (data) => {
+    const message = JSON.parse(data);
+    handleWSMessage(message);
+});
+
+// Server-side handling
+import WebSocket from 'ws';
+
+const wss = new WebSocket.Server({ server });
+
+wss.on('connection', (ws, req) => {
+    const session = parseSession(req);
+    
+    if (!session.authenticated) {
+        ws.close(1008, 'Not authenticated');
+        return;
+    }
+    
+    clients.add(ws);
+    
+    ws.on('message', (message) => {
+        handleClientMessage(ws, message);
+    });
+    
+    ws.on('close', () => {
+        clients.delete(ws);
+    });
+});
+```
+
+### Message Broadcasting
+
+```typescript
+// Broadcast entity changes
+function broadcastEntityChanges(changes: EntityChange[]) {
+    const message = {
+        type: 'entity-changes',
+        data: changes
+    };
+    
+    for (const client of clients) {
+        if (client.readyState === WebSocket.OPEN) {
+            client.send(JSON.stringify(message));
+        }
+    }
+}
+
+// Targeted messages
+function sendToClient(clientId: string, message: WSMessage) {
+    const client = clients.get(clientId);
+    if (client?.readyState === WebSocket.OPEN) {
+        client.send(JSON.stringify(message));
+    }
+}
+```
+
+### Real-time Sync Protocol
+
+```typescript
+// Entity change notification
+{
+    type: 'entity-changes',
+    data: [
+        {
+            entityName: 'notes',
+            entityId: 'noteId123',
+            action: 'update',
+            entity: { /* note data */ }
+        }
+    ]
+}
+
+// Sync pull request
+{
+    type: 'sync-pull',
+    data: {
+        lastSyncId: 12345
+    }
+}
+
+// Sync push
+{
+    type: 'sync-push',
+    data: {
+        entities: [ /* changed entities */ ]
+    }
+}
+```
+
+### Client-side Handling
+
+```typescript
+// Froca WebSocket integration
+class WSClient {
+    constructor() {
+        this.ws = null;
+        this.reconnectTimeout = null;
+        this.connect();
+    }
+    
+    connect() {
+        this.ws = new WebSocket(this.getWSUrl());
+        
+        this.ws.onmessage = (event) => {
+            const message = JSON.parse(event.data);
+            this.handleMessage(message);
+        };
+        
+        this.ws.onclose = () => {
+            // Reconnect with exponential backoff
+            this.scheduleReconnect();
+        };
+    }
+    
+    handleMessage(message: WSMessage) {
+        switch (message.type) {
+            case 'entity-changes':
+                this.handleEntityChanges(message.data);
+                break;
+            case 'refresh-tree':
+                froca.loadInitialTree();
+                break;
+            case 'note-content-change':
+                this.handleContentChange(message.data);
+                break;
+        }
+    }
+    
+    handleEntityChanges(changes: EntityChange[]) {
+        for (const change of changes) {
+            if (change.entityName === 'notes') {
+                froca.reloadNotes([change.entityId]);
+            }
+        }
+    }
+}
+```
+
+## API Security
+
+### Authentication Methods
+
+```typescript
+// 1. Session-based (Internal API)
+app.use(session({
+    secret: config.sessionSecret,
+    resave: false,
+    saveUninitialized: false
+}));
+
+// 2. Token-based (ETAPI)
+router.use('/etapi', (req, res, next) => {
+    const token = req.headers.authorization;
+    
+    const etapiToken = becca.getEtapiToken(token);
+    if (!etapiToken || etapiToken.isExpired()) {
+        return res.status(401).json({ 
+            error: 'Invalid or expired token' 
+        });
+    }
+    
+    req.etapiToken = etapiToken;
+    next();
+});
+
+// 3. WebSocket authentication
+ws.on('connection', (socket) => {
+    socket.on('auth', (token) => {
+        if (!validateToken(token)) {
+            socket.close(1008, 'Invalid token');
+        }
+    });
+});
+```
+
+### Rate Limiting
+
+```typescript
+import rateLimit from 'express-rate-limit';
+
+// Global rate limit
+const globalLimiter = rateLimit({
+    windowMs: 15 * 60 * 1000, // 15 minutes
+    max: 1000 // limit each IP to 1000 requests per windowMs
+});
+
+// Strict limit for authentication
+const authLimiter = rateLimit({
+    windowMs: 15 * 60 * 1000,
+    max: 5,
+    message: 'Too many authentication attempts'
+});
+
+app.use('/api', globalLimiter);
+app.use('/api/auth', authLimiter);
+```
+
+### Input Validation
+
+```typescript
+import { body, validationResult } from 'express-validator';
+
+router.post('/api/notes',
+    body('title').isString().isLength({ min: 1, max: 1000 }),
+    body('type').isIn(['text', 'code', 'file', 'image']),
+    body('content').optional().isString(),
+    (req, res) => {
+        const errors = validationResult(req);
+        if (!errors.isEmpty()) {
+            return res.status(400).json({ 
+                errors: errors.array() 
+            });
+        }
+        
+        // Process valid input
+    }
+);
+```
+
+## Performance Optimization
+
+### Caching Strategies
+
+```typescript
+// Response caching
+const cache = new Map();
+
+router.get('/api/notes/:noteId', (req, res) => {
+    const cacheKey = `note:${req.params.noteId}`;
+    const cached = cache.get(cacheKey);
+    
+    if (cached && cached.expires > Date.now()) {
+        return res.json(cached.data);
+    }
+    
+    const note = becca.getNote(req.params.noteId);
+    const data = note.getPojo();
+    
+    cache.set(cacheKey, {
+        data,
+        expires: Date.now() + 60000 // 1 minute
+    });
+    
+    res.json(data);
+});
+```
+
+### Batch Operations
+
+```typescript
+// Batch API endpoint
+router.post('/api/batch', async (req, res) => {
+    const operations = req.body.operations;
+    const results = [];
+    
+    await sql.transactional(async () => {
+        for (const op of operations) {
+            const result = await executeOperation(op);
+            results.push(result);
+        }
+    });
+    
+    res.json({ results });
+});
+
+// Client batch usage
+const batch = [
+    { method: 'PUT', path: '/notes/1', body: { title: 'Note 1' }},
+    { method: 'PUT', path: '/notes/2', body: { title: 'Note 2' }},
+    { method: 'POST', path: '/notes/3/attributes', body: { type: 'label', name: 'todo' }}
+];
+
+await api.post('/batch', { operations: batch });
+```
+
+### Streaming Responses
+
+```typescript
+// Stream large data
+router.get('/api/export', (req, res) => {
+    res.writeHead(200, {
+        'Content-Type': 'application/x-ndjson',
+        'Transfer-Encoding': 'chunked'
+    });
+    
+    const noteStream = createNoteExportStream();
+    
+    noteStream.on('data', (note) => {
+        res.write(JSON.stringify(note) + '\n');
+    });
+    
+    noteStream.on('end', () => {
+        res.end();
+    });
+});
+```
+
+## Error Handling
+
+### Standard Error Responses
+
+```typescript
+// Error response format
+interface ErrorResponse {
+    error: string;
+    code?: string;
+    details?: any;
+}
+
+// Error handling middleware
+app.use((err: Error, req: Request, res: Response, next: NextFunction) => {
+    console.error('API Error:', err);
+    
+    if (err instanceof NotFoundError) {
+        return res.status(404).json({
+            error: err.message,
+            code: 'NOT_FOUND'
+        });
+    }
+    
+    if (err instanceof ValidationError) {
+        return res.status(400).json({
+            error: err.message,
+            code: 'VALIDATION_ERROR',
+            details: err.details
+        });
+    }
+    
+    // Generic error
+    res.status(500).json({
+        error: 'Internal server error',
+        code: 'INTERNAL_ERROR'
+    });
+});
+```
+
+## API Documentation
+
+### OpenAPI/Swagger
+
+```yaml
+# etapi.openapi.yaml
+openapi: 3.0.0
+info:
+  title: Trilium ETAPI
+  version: 1.0.0
+  description: External API for Trilium Notes
+
+paths:
+  /etapi/notes/{noteId}:
+    get:
+      summary: Get note by ID
+      parameters:
+        - name: noteId
+          in: path
+          required: true
+          schema:
+            type: string
+      responses:
+        200:
+          description: Note found
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Note'
+        404:
+          description: Note not found
+
+components:
+  schemas:
+    Note:
+      type: object
+      properties:
+        noteId:
+          type: string
+        title:
+          type: string
+        type:
+          type: string
+          enum: [text, code, file, image]
+```
+
+### API Testing
+
+```typescript
+// API test example
+describe('Notes API', () => {
+    it('should create a note', async () => {
+        const response = await request(app)
+            .post('/api/notes/root/children')
+            .send({
+                title: 'Test Note',
+                type: 'text',
+                content: 'Test content'
+            })
+            .expect(200);
+            
+        expect(response.body).toHaveProperty('noteId');
+        expect(response.body.title).toBe('Test Note');
+    });
+    
+    it('should handle errors', async () => {
+        const response = await request(app)
+            .get('/api/notes/invalid')
+            .expect(404);
+            
+        expect(response.body).toHaveProperty('error');
+    });
+});
+```
+
+## Best Practices
+
+### API Design
+
+1.  **RESTful conventions**: Use appropriate HTTP methods and status codes
+2.  **Consistent naming**: Use camelCase for JSON properties
+3.  **Versioning**: Version the API to maintain compatibility
+4.  **Documentation**: Keep OpenAPI spec up to date
+
+### Security
+
+1.  **Authentication**: Always verify user identity
+2.  **Authorization**: Check permissions for each operation
+3.  **Validation**: Validate all input data
+4.  **Rate limiting**: Prevent abuse with appropriate limits
+
+### Performance
+
+1.  **Pagination**: Limit response sizes with pagination
+2.  **Caching**: Cache frequently accessed data
+3.  **Batch operations**: Support bulk operations
+4.  **Async processing**: Use queues for long-running tasks
+
+## Related Documentation
+
+*   [Three-Layer Cache System](Three-Layer-Cache-System.md) - Cache architecture
+*   [Entity System](Entity-System.md) - Data model
+*   [ETAPI Reference](#root/YCSbHgSqH9PA) - OpenAPI specification
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/Architecture/Entity-System.md b/docs/Developer Guide/Developer Guide/Architecture/Entity-System.md
new file mode 100644
index 0000000000..c22a008a78
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/Architecture/Entity-System.md	
@@ -0,0 +1,614 @@
+# Entity-System
+## Entity System Architecture
+
+The Entity System forms the core data model of Trilium Notes, providing a flexible and powerful structure for organizing information. This document details the entities, their relationships, and usage patterns.
+
+## Core Entities Overview
+
+```
+erDiagram
+    Note ||--o{ Branch : "parent-child"
+    Note ||--o{ Attribute : "has"
+    Note ||--o{ Revision : "history"
+    Note ||--o{ Attachment : "contains"
+    Attachment ||--|| Blob : "stores in"
+    Revision ||--|| Blob : "stores in"
+    Note }o--o{ Note : "relates via Attribute"
+    
+    Note {
+        string noteId PK
+        string title
+        string type
+        string content
+        boolean isProtected
+        string dateCreated
+        string dateModified
+    }
+    
+    Branch {
+        string branchId PK
+        string noteId FK
+        string parentNoteId FK
+        integer notePosition
+        string prefix
+        boolean isExpanded
+    }
+    
+    Attribute {
+        string attributeId PK
+        string noteId FK
+        string type "label or relation"
+        string name
+        string value
+        integer position
+        boolean isInheritable
+    }
+    
+    Revision {
+        string revisionId PK
+        string noteId FK
+        string title
+        string type
+        boolean isProtected
+        string dateCreated
+    }
+    
+    Attachment {
+        string attachmentId PK
+        string ownerId FK
+        string role
+        string mime
+        string title
+        string blobId FK
+    }
+    
+    Blob {
+        string blobId PK
+        binary content
+        string dateModified
+    }
+    
+    Option {
+        string name PK
+        string value
+        boolean isSynced
+    }
+```
+
+## Entity Definitions
+
+### BNote - Notes with Content and Metadata
+
+**Location**: `/apps/server/src/becca/entities/bnote.ts`
+
+Notes are the fundamental unit of information in Trilium. Each note can contain different types of content and maintain relationships with other notes.
+
+#### Properties
+
+```typescript
+class BNote {
+    noteId: string;           // Unique identifier
+    title: string;            // Display title
+    type: string;             // Content type (text, code, file, etc.)
+    mime: string;             // MIME type for content
+    isProtected: boolean;     // Encryption flag
+    dateCreated: string;      // Creation timestamp
+    dateModified: string;     // Last modification
+    utcDateCreated: string;   // UTC creation
+    utcDateModified: string;  // UTC modification
+    
+    // Relationships
+    parentBranches: BBranch[];  // Parent connections
+    children: BBranch[];        // Child connections
+    attributes: BAttribute[];   // Metadata
+    
+    // Content
+    content?: string | Buffer;  // Note content (lazy loaded)
+    
+    // Computed
+    isDecrypted: boolean;       // Decryption status
+}
+```
+
+#### Note Types
+
+*   **text**: Rich text content with HTML formatting
+*   **code**: Source code with syntax highlighting
+*   **file**: Binary file attachment
+*   **image**: Image with preview capabilities
+*   **search**: Saved search query
+*   **book**: Container for hierarchical documentation
+*   **relationMap**: Visual relationship diagram
+*   **canvas**: Drawing canvas (Excalidraw)
+*   **mermaid**: Mermaid diagram
+*   **mindMap**: Mind mapping visualization
+*   **webView**: Embedded web content
+*   **noteMap**: Tree visualization
+
+#### Usage Examples
+
+```typescript
+// Create a new note
+const note = new BNote({
+    noteId: generateNoteId(),
+    title: "My Note",
+    type: "text",
+    mime: "text/html",
+    content: "<p>Note content</p>"
+});
+note.save();
+
+// Get note with content
+const note = becca.getNote(noteId);
+await note.loadContent();
+
+// Update note
+note.title = "Updated Title";
+note.save();
+
+// Protect note
+note.isProtected = true;
+note.encrypt();
+note.save();
+```
+
+### BBranch - Hierarchical Relationships
+
+**Location**: `/apps/server/src/becca/entities/bbranch.ts`
+
+Branches define the parent-child relationships between notes, allowing a note to have multiple parents (cloning).
+
+#### Properties
+
+```typescript
+class BBranch {
+    branchId: string;        // Unique identifier
+    noteId: string;          // Child note ID
+    parentNoteId: string;    // Parent note ID
+    notePosition: number;    // Order among siblings
+    prefix: string;          // Optional prefix label
+    isExpanded: boolean;     // Tree UI state
+    
+    // Computed
+    childNote: BNote;        // Reference to child
+    parentNote: BNote;       // Reference to parent
+}
+```
+
+#### Key Features
+
+*   **Multiple Parents**: Notes can appear in multiple locations
+*   **Ordering**: Explicit positioning among siblings
+*   **Prefixes**: Optional labels for context (e.g., "Chapter 1:")
+*   **UI State**: Expansion state persisted per branch
+
+#### Usage Examples
+
+```typescript
+// Create parent-child relationship
+const branch = new BBranch({
+    noteId: childNote.noteId,
+    parentNoteId: parentNote.noteId,
+    notePosition: 10
+});
+branch.save();
+
+// Clone note to another parent
+const cloneBranch = childNote.cloneTo(otherParent.noteId);
+
+// Reorder children
+parentNote.sortChildren((a, b) => 
+    a.title.localeCompare(b.title)
+);
+
+// Add prefix
+branch.prefix = "Important: ";
+branch.save();
+```
+
+### BAttribute - Key-Value Metadata
+
+**Location**: `/apps/server/src/becca/entities/battribute.ts`
+
+Attributes provide flexible metadata and relationships between notes.
+
+#### Types
+
+1.  **Labels**: Key-value pairs for metadata
+2.  **Relations**: References to other notes
+
+#### Properties
+
+```typescript
+class BAttribute {
+    attributeId: string;     // Unique identifier
+    noteId: string;          // Owning note
+    type: 'label' | 'relation';
+    name: string;            // Attribute name
+    value: string;           // Value or target noteId
+    position: number;        // Display order
+    isInheritable: boolean;  // Inherited by children
+    
+    // Computed
+    note: BNote;             // Owner note
+    targetNote?: BNote;      // For relations
+}
+```
+
+#### Common Patterns
+
+```typescript
+// Add label
+note.addLabel("status", "active");
+note.addLabel("priority", "high");
+
+// Add relation
+note.addRelation("template", templateNoteId);
+note.addRelation("renderNote", renderNoteId);
+
+// Query by attributes
+const todos = becca.findAttributes("label", "todoItem");
+const templates = becca.findAttributes("label", "template");
+
+// Inheritable attributes
+note.addLabel("workspace", "project", true); // Children inherit
+```
+
+#### System Attributes
+
+Special attributes with system behavior:
+
+*   `#hidePromotedAttributes`: Hide promoted attributes in UI
+*   `#readOnly`: Prevent note editing
+*   `#autoReadOnlyDisabled`: Disable auto read-only
+*   `#hideChildrenOverview`: Hide children count
+*   `~template`: Note template relation
+*   `~renderNote`: Custom rendering relation
+
+### BRevision - Version History
+
+**Location**: `/apps/server/src/becca/entities/brevision.ts`
+
+Revisions provide version history and recovery capabilities.
+
+#### Properties
+
+```typescript
+class BRevision {
+    revisionId: string;      // Unique identifier
+    noteId: string;          // Parent note
+    type: string;            // Content type
+    mime: string;            // MIME type
+    title: string;           // Historical title
+    isProtected: boolean;    // Encryption flag
+    dateCreated: string;     // Creation time
+    utcDateCreated: string;  // UTC time
+    dateModified: string;    // Content modification
+    blobId: string;          // Content storage
+    
+    // Methods
+    getContent(): string | Buffer;
+    restore(): void;
+}
+```
+
+#### Revision Strategy
+
+*   Created automatically on significant changes
+*   Configurable retention period
+*   Day/week/month/year retention rules
+*   Protected note revisions are encrypted
+
+#### Usage Examples
+
+```typescript
+// Get note revisions
+const revisions = note.getRevisions();
+
+// Restore revision
+const revision = becca.getRevision(revisionId);
+revision.restore();
+
+// Manual revision creation
+note.saveRevision();
+
+// Compare revisions
+const diff = revision1.getContent() !== revision2.getContent();
+```
+
+### BOption - Application Configuration
+
+**Location**: `/apps/server/src/becca/entities/boption.ts`
+
+Options store application and user preferences.
+
+#### Properties
+
+```typescript
+class BOption {
+    name: string;            // Option key
+    value: string;           // Option value
+    isSynced: boolean;       // Sync across instances
+    utcDateModified: string; // Last change
+}
+```
+
+#### Common Options
+
+```typescript
+// Theme settings
+setOption("theme", "dark");
+
+// Protected session timeout
+setOption("protectedSessionTimeout", "600");
+
+// Sync settings
+setOption("syncServerHost", "https://sync.server");
+
+// Note settings
+setOption("defaultNoteType", "text");
+```
+
+### BAttachment - File Attachments
+
+**Location**: `/apps/server/src/becca/entities/battachment.ts`
+
+Attachments link binary content to notes.
+
+#### Properties
+
+```typescript
+class BAttachment {
+    attachmentId: string;    // Unique identifier
+    ownerId: string;         // Parent note ID
+    role: string;            // Attachment role
+    mime: string;            // MIME type
+    title: string;           // Display title
+    blobId: string;          // Content reference
+    utcDateScheduledForDeletion: string;
+    
+    // Methods
+    getContent(): Buffer;
+    getBlob(): BBlob;
+}
+```
+
+#### Usage Patterns
+
+```typescript
+// Add attachment to note
+const attachment = note.addAttachment({
+    role: "file",
+    mime: "application/pdf",
+    title: "document.pdf",
+    content: buffer
+});
+
+// Get attachments
+const attachments = note.getAttachments();
+
+// Download attachment
+const content = attachment.getContent();
+```
+
+## Entity Relationships
+
+### Parent-Child Hierarchy
+
+```typescript
+// Single parent
+childNote.setParent(parentNote.noteId);
+
+// Multiple parents (cloning)
+childNote.cloneTo(parent1.noteId);
+childNote.cloneTo(parent2.noteId);
+
+// Get parents
+const parents = childNote.getParentNotes();
+
+// Get children
+const children = parentNote.getChildNotes();
+
+// Get subtree
+const subtree = parentNote.getSubtreeNotes();
+```
+
+### Attribute Relationships
+
+```typescript
+// Direct relations
+note.addRelation("author", authorNote.noteId);
+
+// Bidirectional relations
+note1.addRelation("related", note2.noteId);
+note2.addRelation("related", note1.noteId);
+
+// Get related notes
+const related = note.getRelations("related");
+
+// Get notes relating to this one
+const targetRelations = note.getTargetRelations();
+```
+
+## Entity Lifecycle
+
+### Creation
+
+```typescript
+// Note creation
+const note = new BNote({
+    noteId: generateNoteId(),
+    title: "New Note",
+    type: "text"
+});
+note.save();
+
+// With parent
+const child = parentNote.addChild({
+    title: "Child Note",
+    type: "text",
+    content: "Content"
+});
+```
+
+### Updates
+
+```typescript
+// Atomic updates
+note.title = "New Title";
+note.save();
+
+// Batch updates
+sql.transactional(() => {
+    note1.title = "Title 1";
+    note1.save();
+    
+    note2.content = "Content 2";
+    note2.save();
+});
+```
+
+### Deletion
+
+```typescript
+// Soft delete (move to trash)
+note.deleteNote();
+
+// Mark for deletion
+note.isDeleted = true;
+note.save();
+
+// Permanent deletion (after grace period)
+note.eraseNote();
+```
+
+## Performance Considerations
+
+### Lazy Loading
+
+```typescript
+// Note content loaded on demand
+const note = becca.getNote(noteId); // Metadata only
+await note.loadContent(); // Load content when needed
+
+// Revisions loaded on demand
+const revisions = note.getRevisions(); // Database query
+```
+
+### Batch Operations
+
+```typescript
+// Efficient bulk loading
+const notes = becca.getNotes(noteIds);
+
+// Batch attribute queries
+const attributes = sql.getRows(`
+    SELECT * FROM attributes 
+    WHERE noteId IN (???) 
+    AND name = ?
+`, [noteIds, 'label']);
+```
+
+### Indexing
+
+```typescript
+// Attribute index for fast lookups
+const labels = becca.findAttributes("label", "important");
+
+// Branch index for relationship queries
+const branch = becca.getBranchFromChildAndParent(childId, parentId);
+```
+
+## Best Practices
+
+### Entity Creation
+
+```typescript
+// Always use transactions for multiple operations
+sql.transactional(() => {
+    const note = new BNote({...});
+    note.save();
+    
+    note.addLabel("status", "draft");
+    note.addRelation("template", templateId);
+});
+```
+
+### Entity Updates
+
+```typescript
+// Check existence before update
+const note = becca.getNote(noteId);
+if (note) {
+    note.title = "Updated";
+    note.save();
+}
+
+// Use proper error handling
+try {
+    const note = becca.getNoteOrThrow(noteId);
+    note.save();
+} catch (e) {
+    log.error(`Note ${noteId} not found`);
+}
+```
+
+### Querying
+
+```typescript
+// Use indexed queries
+const attrs = becca.findAttributes("label", "task");
+
+// Avoid N+1 queries
+const noteIds = [...];
+const notes = becca.getNotes(noteIds); // Single batch
+
+// Use SQL for complex queries
+const results = sql.getRows(`
+    SELECT n.noteId, n.title, COUNT(b.branchId) as childCount
+    FROM notes n
+    LEFT JOIN branches b ON b.parentNoteId = n.noteId
+    GROUP BY n.noteId
+`);
+```
+
+## Troubleshooting
+
+### Common Issues
+
+1.  **Circular References**
+    
+    ```typescript
+    // Detect cycles before creating branches
+    if (!parentNote.hasAncestor(childNote.noteId)) {
+        childNote.setParent(parentNote.noteId);
+    }
+    ```
+2.  **Orphaned Entities**
+    
+    ```typescript
+    // Find orphaned notes
+    const orphans = sql.getRows(`
+        SELECT noteId FROM notes
+        WHERE noteId != 'root'
+        AND noteId NOT IN (SELECT noteId FROM branches)
+    `);
+    ```
+3.  **Attribute Conflicts**
+    
+    ```typescript
+    // Handle duplicate attributes
+    const existing = note.getAttribute("label", "status");
+    if (existing) {
+        existing.value = "new value";
+        existing.save();
+    } else {
+        note.addLabel("status", "new value");
+    }
+    ```
+
+## Related Documentation
+
+*   [Three-Layer Cache System](Three-Layer-Cache-System.md) - Cache architecture
+*   [Database Schema](#root/eZcnGfMUmic0) - Database structure
+*   [Script API](#root/7Pp4moCrBVzA) - Entity API for scripts
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/Architecture/Monorepo-Structure.md b/docs/Developer Guide/Developer Guide/Architecture/Monorepo-Structure.md
new file mode 100644
index 0000000000..6867ce67f8
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/Architecture/Monorepo-Structure.md	
@@ -0,0 +1,612 @@
+# Monorepo-Structure
+## Monorepo Structure
+
+Trilium is organized as a TypeScript monorepo using NX, facilitating code sharing, consistent tooling, and efficient build processes. This document provides a comprehensive overview of the project structure, build system, and development workflow.
+
+## Project Organization
+
+```
+TriliumNext/Trilium/
+├── apps/                      # Runnable applications
+│   ├── client/               # Frontend web application
+│   ├── server/               # Node.js backend server
+│   ├── desktop/              # Electron desktop application
+│   ├── web-clipper/          # Browser extension
+│   ├── db-compare/           # Database comparison tool
+│   ├── dump-db/              # Database dump utility
+│   └── edit-docs/            # Documentation editor
+├── packages/                  # Shared libraries
+│   ├── commons/              # Shared interfaces and utilities
+│   ├── ckeditor5/            # Rich text editor
+│   ├── codemirror/           # Code editor
+│   ├── highlightjs/          # Syntax highlighting
+│   ├── ckeditor5-admonition/ # CKEditor plugin
+│   ├── ckeditor5-footnotes/  # CKEditor plugin
+│   ├── ckeditor5-math/       # CKEditor plugin
+│   └── ckeditor5-mermaid/    # CKEditor plugin
+├── docs/                      # Documentation
+├── nx.json                    # NX workspace configuration
+├── package.json              # Root package configuration
+├── pnpm-workspace.yaml       # PNPM workspace configuration
+└── tsconfig.base.json        # Base TypeScript configuration
+```
+
+## Applications
+
+### Client (`/apps/client`)
+
+The frontend application shared by both server and desktop versions.
+
+```
+apps/client/
+├── src/
+│   ├── components/         # Core UI components
+│   ├── entities/           # Frontend entities (FNote, FBranch, etc.)
+│   ├── services/           # Business logic and API calls
+│   ├── widgets/            # UI widgets system
+│   │   ├── type_widgets/   # Note type specific widgets
+│   │   ├── dialogs/        # Dialog components
+│   │   └── panels/         # Panel widgets
+│   ├── public/
+│   │   ├── fonts/          # Font assets
+│   │   ├── images/         # Image assets
+│   │   └── libraries/      # Third-party libraries
+│   └── desktop.ts          # Desktop entry point
+├── package.json
+├── project.json            # NX project configuration
+└── vite.config.ts          # Vite build configuration
+```
+
+#### Key Files
+
+*   `desktop.ts` - Main application initialization
+*   `services/froca.ts` - Frontend cache implementation
+*   `widgets/basic_widget.ts` - Base widget class
+*   `services/server.ts` - API communication layer
+
+### Server (`/apps/server`)
+
+The Node.js backend providing API, database, and business logic.
+
+```
+apps/server/
+├── src/
+│   ├── becca/              # Backend cache system
+│   │   ├── entities/       # Core entities (BNote, BBranch, etc.)
+│   │   └── becca.ts        # Cache interface
+│   ├── routes/             # Express routes
+│   │   ├── api/            # Internal API endpoints
+│   │   └── pages/          # HTML page routes
+│   ├── etapi/              # External API
+│   ├── services/           # Business services
+│   ├── share/              # Note sharing functionality
+│   │   └── shaca/          # Share cache
+│   ├── migrations/         # Database migrations
+│   ├── assets/
+│   │   ├── db/             # Database schema
+│   │   └── doc_notes/      # Documentation notes
+│   └── main.ts             # Server entry point
+├── package.json
+├── project.json
+└── webpack.config.js       # Webpack configuration
+```
+
+#### Key Services
+
+*   `services/sql.ts` - Database access layer
+*   `services/sync.ts` - Synchronization logic
+*   `services/ws.ts` - WebSocket server
+*   `services/protected_session.ts` - Encryption handling
+
+### Desktop (`/apps/desktop`)
+
+Electron wrapper for the desktop application.
+
+```
+apps/desktop/
+├── src/
+│   ├── main.ts             # Electron main process
+│   ├── preload.ts          # Preload script
+│   ├── services/           # Desktop-specific services
+│   └── utils/              # Desktop utilities
+├── resources/              # Desktop resources (icons, etc.)
+├── package.json
+└── electron-builder.yml    # Electron Builder configuration
+```
+
+### Web Clipper (`/apps/web-clipper`)
+
+Browser extension for saving web content to Trilium.
+
+```
+apps/web-clipper/
+├── src/
+│   ├── background.js       # Background script
+│   ├── content.js          # Content script
+│   ├── popup/              # Extension popup
+│   └── options/            # Extension options
+├── manifest.json           # Extension manifest
+└── package.json
+```
+
+## Packages
+
+### Commons (`/packages/commons`)
+
+Shared TypeScript interfaces and utilities used across applications.
+
+```typescript
+// packages/commons/src/types.ts
+export interface NoteRow {
+    noteId: string;
+    title: string;
+    type: string;
+    mime: string;
+    isProtected: boolean;
+    dateCreated: string;
+    dateModified: string;
+}
+
+export interface BranchRow {
+    branchId: string;
+    noteId: string;
+    parentNoteId: string;
+    notePosition: number;
+    prefix: string;
+    isExpanded: boolean;
+}
+```
+
+### CKEditor5 (`/packages/ckeditor5`)
+
+Custom CKEditor5 build with Trilium-specific plugins.
+
+```
+packages/ckeditor5/
+├── src/
+│   ├── ckeditor.ts         # Editor configuration
+│   ├── plugins.ts          # Plugin registration
+│   └── trilium/            # Custom plugins
+├── theme/                  # Editor themes
+└── package.json
+```
+
+#### Custom Plugins
+
+*   **Admonition**: Note boxes with icons
+*   **Footnotes**: Reference footnotes
+*   **Math**: LaTeX equation rendering
+*   **Mermaid**: Diagram integration
+
+### CodeMirror (`/packages/codemirror`)
+
+Code editor customizations for the code note type.
+
+```typescript
+// packages/codemirror/src/index.ts
+export function createCodeMirror(element: HTMLElement, options: CodeMirrorOptions) {
+    return CodeMirror(element, {
+        ...defaultOptions,
+        ...options,
+        // Trilium-specific customizations
+    });
+}
+```
+
+## Build System
+
+### NX Configuration
+
+**`nx.json`**
+
+```json
+{
+  "tasksRunnerOptions": {
+    "default": {
+      "runner": "nx/tasks-runners/default",
+      "options": {
+        "cacheableOperations": ["build", "test", "lint"],
+        "parallel": 3
+      }
+    }
+  },
+  "targetDefaults": {
+    "build": {
+      "dependsOn": ["^build"],
+      "cache": true
+    },
+    "test": {
+      "cache": true
+    }
+  }
+}
+```
+
+### Project Configuration
+
+Each application and package has a `project.json` defining its targets:
+
+```json
+{
+  "name": "server",
+  "targets": {
+    "build": {
+      "executor": "@nx/webpack:webpack",
+      "options": {
+        "outputPath": "dist/apps/server",
+        "main": "apps/server/src/main.ts",
+        "tsConfig": "apps/server/tsconfig.app.json"
+      }
+    },
+    "serve": {
+      "executor": "@nx/node:node",
+      "options": {
+        "buildTarget": "server:build"
+      }
+    },
+    "test": {
+      "executor": "@nx/jest:jest",
+      "options": {
+        "jestConfig": "apps/server/jest.config.ts"
+      }
+    }
+  }
+}
+```
+
+### Build Commands
+
+```sh
+# Build specific project
+pnpm nx build server
+pnpm nx build client
+
+# Build all projects
+pnpm nx run-many --target=build --all
+
+# Build with dependencies
+pnpm nx build server --with-deps
+
+# Production build
+pnpm nx build server --configuration=production
+```
+
+## Development Workflow
+
+### Initial Setup
+
+```sh
+# Install dependencies
+pnpm install
+
+# Enable corepack for pnpm
+corepack enable
+
+# Build all packages
+pnpm nx run-many --target=build --all
+```
+
+### Development Commands
+
+```sh
+# Start development server
+pnpm run server:start
+# or
+pnpm nx run server:serve
+
+# Start desktop app
+pnpm nx run desktop:serve
+
+# Run client dev server
+pnpm nx run client:serve
+
+# Watch mode for packages
+pnpm nx run commons:build --watch
+```
+
+### Testing
+
+```sh
+# Run all tests
+pnpm test:all
+
+# Run tests for specific project
+pnpm nx test server
+pnpm nx test client
+
+# Run tests in watch mode
+pnpm nx test server --watch
+
+# Generate coverage
+pnpm nx test server --coverage
+```
+
+### Linting and Type Checking
+
+```sh
+# Lint specific project
+pnpm nx lint server
+
+# Type check
+pnpm nx run server:typecheck
+
+# Lint all projects
+pnpm nx run-many --target=lint --all
+
+# Fix lint issues
+pnpm nx lint server --fix
+```
+
+## Dependency Management
+
+### Package Dependencies
+
+Dependencies are managed at both root and project levels:
+
+```json
+// Root package.json - shared dev dependencies
+{
+  "devDependencies": {
+    "@nx/workspace": "^17.0.0",
+    "typescript": "^5.0.0",
+    "eslint": "^8.0.0"
+  }
+}
+
+// Project package.json - project-specific dependencies
+{
+  "dependencies": {
+    "express": "^4.18.0",
+    "better-sqlite3": "^9.0.0"
+  }
+}
+```
+
+### Adding Dependencies
+
+```sh
+# Add to root
+pnpm add -D typescript
+
+# Add to specific project
+pnpm add express --filter server
+
+# Add to multiple projects
+pnpm add lodash --filter server --filter client
+```
+
+### Workspace References
+
+Internal packages are referenced using workspace protocol:
+
+```json
+{
+  "dependencies": {
+    "@triliumnext/commons": "workspace:*"
+  }
+}
+```
+
+## TypeScript Configuration
+
+### Base Configuration
+
+**`tsconfig.base.json`**
+
+```json
+{
+  "compilerOptions": {
+    "rootDir": ".",
+    "sourceMap": true,
+    "declaration": false,
+    "moduleResolution": "node",
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "importHelpers": true,
+    "target": "ES2022",
+    "module": "ESNext",
+    "lib": ["ES2022", "dom"],
+    "skipLibCheck": true,
+    "skipDefaultLibCheck": true,
+    "baseUrl": ".",
+    "paths": {
+      "@triliumnext/commons": ["packages/commons/src/index.ts"]
+    }
+  }
+}
+```
+
+### Project-Specific Configuration
+
+```json
+// apps/server/tsconfig.json
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "module": "commonjs",
+    "types": ["node"]
+  },
+  "include": ["src/**/*"],
+  "exclude": ["**/*.spec.ts"]
+}
+```
+
+## Build Optimization
+
+### NX Cloud
+
+```sh
+# Enable NX Cloud for distributed caching
+pnpm nx connect-to-nx-cloud
+```
+
+### Affected Commands
+
+```sh
+# Build only affected projects
+pnpm nx affected:build --base=main
+
+# Test only affected projects
+pnpm nx affected:test --base=main
+
+# Lint only affected projects
+pnpm nx affected:lint --base=main
+```
+
+### Build Caching
+
+NX caches build outputs to speed up subsequent builds:
+
+```sh
+# Clear cache
+pnpm nx reset
+
+# Run with cache disabled
+pnpm nx build server --skip-nx-cache
+
+# See cache statistics
+pnpm nx report
+```
+
+## Production Builds
+
+### Building for Production
+
+```sh
+# Build server for production
+pnpm nx build server --configuration=production
+
+# Build client with optimization
+pnpm nx build client --configuration=production
+
+# Build desktop app
+pnpm nx build desktop --configuration=production
+pnpm electron:build  # Creates distributables
+```
+
+### Docker Build
+
+```dockerfile
+# Multi-stage build
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+COPY package*.json pnpm-lock.yaml ./
+RUN corepack enable && pnpm install --frozen-lockfile
+
+COPY . .
+RUN pnpm nx build server --configuration=production
+
+FROM node:20-alpine
+WORKDIR /app
+COPY --from=builder /app/dist/apps/server ./
+COPY --from=builder /app/node_modules ./node_modules
+
+CMD ["node", "main.js"]
+```
+
+## Continuous Integration
+
+### GitHub Actions Example
+
+```yaml
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - uses: actions/checkout@v3
+      
+      - uses: pnpm/action-setup@v2
+        with:
+          version: 8
+          
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 20
+          cache: 'pnpm'
+          
+      - run: pnpm install --frozen-lockfile
+      
+      - run: pnpm nx affected:lint --base=origin/main
+      
+      - run: pnpm nx affected:test --base=origin/main
+      
+      - run: pnpm nx affected:build --base=origin/main
+```
+
+## Troubleshooting
+
+### Common Issues
+
+1.  **Build Cache Issues**
+    
+    ```sh
+    # Clear NX cache
+    pnpm nx reset
+    
+    # Clear node_modules and reinstall
+    rm -rf node_modules
+    pnpm install
+    ```
+2.  **Dependency Version Conflicts**
+    
+    ```sh
+    # Check for duplicate packages
+    pnpm list --depth=0
+    
+    # Update all dependencies
+    pnpm update --recursive
+    ```
+3.  **TypeScript Path Resolution**
+    
+    ```sh
+    # Verify TypeScript paths
+    pnpm nx run server:typecheck --traceResolution
+    ```
+
+### Debug Commands
+
+```sh
+# Show project graph
+pnpm nx graph
+
+# Show project dependencies
+pnpm nx print-affected --type=app --select=projects
+
+# Verbose output
+pnpm nx build server --verbose
+
+# Profile build performance
+pnpm nx build server --profile
+```
+
+## Best Practices
+
+### Project Structure
+
+1.  **Keep packages focused**: Each package should have a single, clear purpose
+2.  **Minimize circular dependencies**: Use dependency graph to identify issues
+3.  **Share common code**: Extract shared logic to packages/commons
+
+### Development
+
+1.  **Use NX generators**: Generate consistent code structure
+2.  **Leverage caching**: Don't skip-nx-cache unless debugging
+3.  **Run affected commands**: Save time by only building/testing changed code
+
+### Testing
+
+1.  **Colocate tests**: Keep test files next to source files
+2.  **Use workspace scripts**: Define common scripts in root package.json
+3.  **Parallel execution**: Use `--parallel` flag for faster execution
+
+## Related Documentation
+
+*   [Environment Setup](#root/tFVKyUp99QEc) - Development environment setup
+*   [Project Structure](#root/NurKhC1Zq1CN) - Detailed project structure
+*   [Build Information](#root/m5GSI5gIyqs5) - Build details
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/Architecture/README.md b/docs/Developer Guide/Developer Guide/Architecture/README.md
new file mode 100644
index 0000000000..342c58b9e1
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/Architecture/README.md	
@@ -0,0 +1,97 @@
+# README
+## Trilium Architecture Documentation
+
+This comprehensive guide documents the architecture of Trilium Notes, providing developers with detailed information about the system's core components, data flow, and design patterns.
+
+## Table of Contents
+
+1.  [Three-Layer Cache System](Three-Layer-Cache-System.md)
+2.  [Entity System](Entity-System.md)
+3.  [Widget-Based UI Architecture](Widget-Based-UI-Architecture.md)
+4.  [API Architecture](API-Architecture.md)
+5.  [Monorepo Structure](Monorepo-Structure.md)
+
+## Overview
+
+Trilium Notes is built as a TypeScript monorepo using NX, featuring a sophisticated architecture that balances performance, flexibility, and maintainability. The system is designed around several key architectural patterns:
+
+*   **Three-layer caching system** for optimal performance across backend, frontend, and shared content
+*   **Entity-based data model** supporting hierarchical note structures with multiple parent relationships
+*   **Widget-based UI architecture** enabling modular and extensible interface components
+*   **Multiple API layers** for internal operations, external integrations, and real-time synchronization
+*   **Monorepo structure** facilitating code sharing and consistent development patterns
+
+## Quick Start for Developers
+
+If you're new to Trilium development, start with these sections:
+
+1.  [Monorepo Structure](Monorepo-Structure.md) - Understand the project organization
+2.  [Entity System](Entity-System.md) - Learn about the core data model
+3.  [Three-Layer Cache System](Three-Layer-Cache-System.md) - Understand data flow and caching
+
+For UI development, refer to:
+
+*   [Widget-Based UI Architecture](Widget-Based-UI-Architecture.md)
+
+For API integration, see:
+
+*   [API Architecture](API-Architecture.md)
+
+## Architecture Principles
+
+### Performance First
+
+*   Lazy loading of note content
+*   Efficient caching at multiple layers
+*   Optimized database queries with prepared statements
+
+### Flexibility
+
+*   Support for multiple note types
+*   Extensible through scripting
+*   Plugin architecture for UI widgets
+
+### Data Integrity
+
+*   Transactional database operations
+*   Revision history for all changes
+*   Synchronization conflict resolution
+
+### Security
+
+*   Per-note encryption
+*   Protected sessions
+*   API authentication tokens
+
+## Development Workflow
+
+1.  **Setup Development Environment**
+    
+    ```sh
+    pnpm install
+    pnpm run server:start
+    ```
+2.  **Make Changes**
+    
+    *   Backend changes in `apps/server/src/`
+    *   Frontend changes in `apps/client/src/`
+    *   Shared code in `packages/`
+3.  **Test Your Changes**
+    
+    ```sh
+    pnpm test:all
+    pnpm nx run <project>:lint
+    ```
+4.  **Build for Production**
+    
+    ```sh
+    pnpm nx build server
+    pnpm nx build client
+    ```
+
+## Further Reading
+
+*   [Development Environment Setup](#root/tFVKyUp99QEc)
+*   [Adding a New Note Type](#root/6aV1LKciq0CF)
+*   [Database Schema](#root/eZcnGfMUmic0)
+*   [Script API Documentation](#root/7Pp4moCrBVzA)
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/Architecture/Three-Layer-Cache-System.md b/docs/Developer Guide/Developer Guide/Architecture/Three-Layer-Cache-System.md
new file mode 100644
index 0000000000..c393e7f266
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/Architecture/Three-Layer-Cache-System.md	
@@ -0,0 +1,374 @@
+# Three-Layer-Cache-System
+## Three-Layer Cache System Architecture
+
+Trilium implements a sophisticated three-layer caching system to optimize performance and reduce database load. This architecture ensures fast access to frequently used data while maintaining consistency across different application contexts.
+
+## Overview
+
+The three cache layers are:
+
+1.  **Becca** (Backend Cache) - Server-side entity cache
+2.  **Froca** (Frontend Cache) - Client-side mirror of backend data
+3.  **Shaca** (Share Cache) - Optimized cache for shared/published notes
+
+```
+graph TB
+    subgraph "Database Layer"
+        DB[(SQLite Database)]
+    end
+    
+    subgraph "Backend Layer"
+        Becca[Becca Cache<br/>Backend Cache]
+        API[API Layer]
+    end
+    
+    subgraph "Frontend Layer"
+        Froca[Froca Cache<br/>Frontend Cache]
+        UI[UI Components]
+    end
+    
+    subgraph "Share Layer"
+        Shaca[Shaca Cache<br/>Share Cache]
+        Share[Public Share Interface]
+    end
+    
+    DB <--> Becca
+    Becca <--> API
+    API <--> Froca
+    Froca <--> UI
+    DB <--> Shaca
+    Shaca <--> Share
+    
+    style Becca fill:#e1f5fe
+    style Froca fill:#fff3e0
+    style Shaca fill:#f3e5f5
+```
+
+## Becca (Backend Cache)
+
+**Location**: `/apps/server/src/becca/`
+
+Becca is the authoritative cache layer that maintains all notes, branches, attributes, and options in server memory.
+
+### Key Components
+
+#### Becca Interface (`becca-interface.ts`)
+
+```typescript
+export default class Becca {
+    loaded: boolean;
+    notes: Record<string, BNote>;
+    branches: Record<string, BBranch>;
+    childParentToBranch: Record<string, BBranch>;
+    attributes: Record<string, BAttribute>;
+    attributeIndex: Record<string, BAttribute[]>;
+    options: Record<string, BOption>;
+    etapiTokens: Record<string, BEtapiToken>;
+    allNoteSetCache: NoteSet | null;
+}
+```
+
+### Features
+
+*   **In-memory storage**: All active entities are kept in memory for fast access
+*   **Lazy loading**: Related entities (revisions, attachments) loaded on demand
+*   **Index structures**: Optimized lookups via `childParentToBranch` and `attributeIndex`
+*   **Cache invalidation**: Automatic cache updates on entity changes
+*   **Protected note decryption**: On-demand decryption of encrypted content
+
+### Usage Example
+
+```typescript
+import becca from "./becca/becca.js";
+
+// Get a note
+const note = becca.getNote("noteId");
+
+// Find attributes by type and name
+const labels = becca.findAttributes("label", "todoItem");
+
+// Get branch relationships
+const branch = becca.getBranchFromChildAndParent(childId, parentId);
+```
+
+### Data Flow
+
+1.  **Initialization**: Load all notes, branches, and attributes from database
+2.  **Access**: Direct memory access for cached entities
+3.  **Updates**: Write-through cache with immediate database persistence
+4.  **Invalidation**: Automatic cache refresh on entity changes
+
+## Froca (Frontend Cache)
+
+**Location**: `/apps/client/src/services/froca.ts`
+
+Froca is the frontend mirror of Becca, maintaining a subset of backend data for client-side operations.
+
+### Key Components
+
+#### Froca Implementation (`froca.ts`)
+
+```typescript
+class FrocaImpl implements Froca {
+    notes: Record<string, FNote>;
+    branches: Record<string, FBranch>;
+    attributes: Record<string, FAttribute>;
+    attachments: Record<string, FAttachment>;
+    blobPromises: Record<string, Promise<FBlob | null> | null>;
+}
+```
+
+### Features
+
+*   **Lazy loading**: Notes loaded on-demand with their immediate context
+*   **Subtree loading**: Efficient loading of note hierarchies
+*   **Real-time updates**: WebSocket synchronization with backend changes
+*   **Search note support**: Virtual branches for search results
+*   **Promise-based blob loading**: Asynchronous content loading
+
+### Loading Strategy
+
+```typescript
+// Initial load - loads root and immediate children
+await froca.loadInitialTree();
+
+// Load subtree on demand
+const note = await froca.loadSubTree(noteId);
+
+// Reload specific notes
+await froca.reloadNotes([noteId1, noteId2]);
+```
+
+### Synchronization
+
+Froca maintains consistency with Becca through:
+
+1.  **Initial sync**: Load essential tree structure on startup
+2.  **On-demand loading**: Fetch notes as needed
+3.  **WebSocket updates**: Real-time push of changes from backend
+4.  **Batch reloading**: Efficient refresh of multiple notes
+
+## Shaca (Share Cache)
+
+**Location**: `/apps/server/src/share/shaca/`
+
+Shaca is a specialized cache for publicly shared notes, optimized for read-only access.
+
+### Key Components
+
+#### Shaca Interface (`shaca-interface.ts`)
+
+```typescript
+export default class Shaca {
+    notes: Record<string, SNote>;
+    branches: Record<string, SBranch>;
+    childParentToBranch: Record<string, SBranch>;
+    attributes: Record<string, SAttribute>;
+    attachments: Record<string, SAttachment>;
+    aliasToNote: Record<string, SNote>;
+    shareRootNote: SNote | null;
+    shareIndexEnabled: boolean;
+}
+```
+
+### Features
+
+*   **Read-only optimization**: Streamlined for public access
+*   **Alias support**: URL-friendly note access via aliases
+*   **Share index**: Optional indexing of all shared subtrees
+*   **Minimal memory footprint**: Only shared content cached
+*   **Security isolation**: Separate from main application cache
+
+### Usage Patterns
+
+```typescript
+// Get shared note by ID
+const note = shaca.getNote(noteId);
+
+// Access via alias
+const aliasedNote = shaca.aliasToNote[alias];
+
+// Check if note is shared
+const isShared = shaca.hasNote(noteId);
+```
+
+## Cache Interaction and Data Flow
+
+### 1\. Create/Update Flow
+
+```
+sequenceDiagram
+    participant Client
+    participant Froca
+    participant API
+    participant Becca
+    participant DB
+    
+    Client->>API: Update Note
+    API->>Becca: Update Cache
+    Becca->>DB: Persist Change
+    Becca->>API: Confirm
+    API->>Froca: Push Update (WebSocket)
+    Froca->>Client: Update UI
+```
+
+### 2\. Read Flow
+
+```
+sequenceDiagram
+    participant Client
+    participant Froca
+    participant API
+    participant Becca
+    
+    Client->>Froca: Request Note
+    alt Note in Cache
+        Froca->>Client: Return Cached Note
+    else Note not in Cache
+        Froca->>API: Fetch Note
+        API->>Becca: Get Note
+        Becca->>API: Return Note
+        API->>Froca: Send Note Data
+        Froca->>Froca: Cache Note
+        Froca->>Client: Return Note
+    end
+```
+
+### 3\. Share Access Flow
+
+```
+sequenceDiagram
+    participant Browser
+    participant ShareUI
+    participant Shaca
+    participant DB
+    
+    Browser->>ShareUI: Access Shared URL
+    ShareUI->>Shaca: Get Shared Note
+    alt Note in Cache
+        Shaca->>ShareUI: Return Cached
+    else Not in Cache
+        Shaca->>DB: Load Shared Tree
+        DB->>Shaca: Return Data
+        Shaca->>Shaca: Build Cache
+        Shaca->>ShareUI: Return Note
+    end
+    ShareUI->>Browser: Render Content
+```
+
+## Performance Considerations
+
+### Memory Management
+
+*   **Becca**: Keeps entire note tree in memory (~100-500MB for typical use)
+*   **Froca**: Loads notes on-demand, automatic cleanup of unused notes
+*   **Shaca**: Minimal footprint, only shared content
+
+### Cache Warming
+
+*   **Becca**: Full load on server startup
+*   **Froca**: Progressive loading based on user navigation
+*   **Shaca**: Lazy loading with configurable index
+
+### Optimization Strategies
+
+1.  **Attribute Indexing**: Pre-built indexes for fast attribute queries
+2.  **Batch Operations**: Group updates to minimize round trips
+3.  **Partial Loading**: Load only required fields for lists
+4.  **WebSocket Compression**: Compressed real-time updates
+
+## Best Practices
+
+### When to Use Each Cache
+
+**Use Becca when**:
+
+*   Implementing server-side business logic
+*   Performing bulk operations
+*   Handling synchronization
+*   Managing protected notes
+
+**Use Froca when**:
+
+*   Building UI components
+*   Handling user interactions
+*   Displaying note content
+*   Managing client state
+
+**Use Shaca when**:
+
+*   Serving public content
+*   Building share pages
+*   Implementing read-only access
+*   Creating public APIs
+
+### Cache Invalidation
+
+```typescript
+// Becca - automatic on entity save
+note.save(); // Cache updated automatically
+
+// Froca - manual reload when needed
+await froca.reloadNotes([noteId]);
+
+// Shaca - rebuild on share changes
+shaca.reset();
+shaca.load();
+```
+
+### Error Handling
+
+```typescript
+// Becca - throw on missing required entities
+const note = becca.getNoteOrThrow(noteId); // throws NotFoundError
+
+// Froca - graceful degradation
+const note = await froca.getNote(noteId);
+if (!note) {
+    // Handle missing note
+}
+
+// Shaca - check existence first
+if (shaca.hasNote(noteId)) {
+    const note = shaca.getNote(noteId);
+}
+```
+
+## Troubleshooting
+
+### Common Issues
+
+1.  **Cache Inconsistency**
+    
+    *   Symptom: UI shows outdated data
+    *   Solution: Force reload with `froca.reloadNotes()`
+2.  **Memory Growth**
+    
+    *   Symptom: Server memory usage increases
+    *   Solution: Check for memory leaks in custom scripts
+3.  **Slow Initial Load**
+    
+    *   Symptom: Long startup time
+    *   Solution: Optimize database queries, add indexes
+
+### Debug Commands
+
+```javascript
+// Check cache sizes
+console.log('Becca notes:', Object.keys(becca.notes).length);
+console.log('Froca notes:', Object.keys(froca.notes).length);
+console.log('Shaca notes:', Object.keys(shaca.notes).length);
+
+// Force cache refresh
+await froca.loadInitialTree();
+
+// Clear and reload Shaca
+shaca.reset();
+await shaca.load();
+```
+
+## Related Documentation
+
+*   [Entity System](Entity-System.md) - Detailed entity documentation
+*   [Database Schema](#root/eZcnGfMUmic0) - Database structure
+*   [WebSocket Synchronization](#root/UBgXVlHv3d66) - Real-time updates
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/Architecture/Widget-Based-UI-Architecture.md b/docs/Developer Guide/Developer Guide/Architecture/Widget-Based-UI-Architecture.md
new file mode 100644
index 0000000000..e2688a4e54
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/Architecture/Widget-Based-UI-Architecture.md	
@@ -0,0 +1,514 @@
+# Widget-Based-UI-Architecture
+## Widget-Based UI Architecture
+
+Trilium's user interface is built on a widget system where each UI element is a self-contained component. This approach makes the interface modular, allowing developers to create custom widgets and extend the application's functionality.
+
+## Understanding Widgets
+
+Widgets in Trilium form a hierarchy, with each level adding specific capabilities. At the base, every widget is a Component that can have children and communicate with other widgets. The BasicWidget layer adds DOM manipulation, while NoteContextAwareWidget provides automatic updates when notes change.
+
+## Core Widget Classes
+
+### Component (Base Class)
+
+**Location**: `/apps/client/src/components/component.js`
+
+Every UI element in Trilium inherits from Component, which provides the foundation for parent-child relationships and event communication between widgets.
+
+### BasicWidget
+
+**Location**: `/apps/client/src/widgets/basic_widget.ts`
+
+BasicWidget extends Component with DOM manipulation capabilities. It provides a fluent API for styling and composing UI elements:
+
+```typescript
+class MyWidget extends BasicWidget {
+    doRender() {
+        this.$widget = $('<div class="my-widget">');
+        this.$widget.append($('<h3>').text('Title'));
+        return this.$widget;
+    }
+}
+
+// Compose widgets using method chaining
+const container = new FlexContainer('column')
+    .id('main-container')
+    .css('padding', '10px')
+    .child(new MyWidget());
+```
+
+The chaining API makes it easy to build complex UIs declaratively. Methods like `css()`, `class()`, and `child()` return the widget itself, allowing you to chain multiple operations together.
+
+### NoteContextAwareWidget
+
+**Location**: `/apps/client/src/widgets/note_context_aware_widget.ts`
+
+Widgets that need to react to note changes extend NoteContextAwareWidget. This class automatically calls your widget's methods when the active note changes, making it easy to keep the UI synchronized with the current note.
+
+```typescript
+class MyNoteWidget extends NoteContextAwareWidget {
+    async refreshWithNote(note) {
+        // Automatically called when note changes
+        this.$widget.find('.title').text(note.title);
+    }
+}
+```
+
+Key lifecycle methods:
+
+*   `refreshWithNote(note)` - Called when the active note changes
+*   `noteSwitched()` - Called after switching to a different note
+*   `noteTypeMimeChanged()` - Called when the note's type changes
+
+The widget automatically maintains references to the current note, making it simple to build note-aware UI components.
+
+### RightPanelWidget
+
+**Location**: `/apps/client/src/widgets/right_panel_widget.ts`
+
+Widgets in the right sidebar extend RightPanelWidget. These widgets appear as collapsible panels and can show note-specific information or tools.
+
+```typescript
+class InfoWidget extends RightPanelWidget {
+    getTitle() { return "Note Info"; }
+    getIcon() { return "info"; }
+    
+    async doRenderBody() {
+        return $('<div class="info-widget">');
+    }
+    
+    async refreshWithNote(note: FNote) {
+        this.$body.find('.created').text(`Created: ${note.dateCreated}`);
+        this.$body.find('.modified').text(`Modified: ${note.dateModified}`);
+        
+        const wordCount = this.calculateWordCount(await note.getContent());
+        this.$body.find('.word-count').text(`Words: ${wordCount}`);
+    }
+}
+```
+
+## Type-Specific Widgets
+
+**Location**: `/apps/client/src/widgets/type_widgets/`
+
+Each note type has a specialized widget for rendering and editing.
+
+### TypeWidget Interface
+
+```typescript
+abstract class TypeWidget extends NoteContextAwareWidget {
+    abstract static getType(): string;
+    
+    // Content management
+    async getContent(): Promise<string>;
+    async saveContent(content: string): Promise<void>;
+    
+    // Focus management
+    async focus(): Promise<void>;
+    async blur(): Promise<void>;
+    
+    // Cleanup
+    async cleanup(): Promise<void>;
+}
+```
+
+### Common Type Widgets
+
+#### TextTypeWidget
+
+```typescript
+class TextTypeWidget extends TypeWidget {
+    static getType() { return 'text'; }
+    
+    private textEditor: TextEditor;
+    
+    async doRender() {
+        const $editor = $('<div class="ck-editor">');
+        this.textEditor = await TextEditor.create($editor[0], {
+            noteId: this.noteId,
+            content: await this.note.getContent()
+        });
+        
+        return $editor;
+    }
+    
+    async getContent() {
+        return this.textEditor.getData();
+    }
+}
+```
+
+#### CodeTypeWidget
+
+```typescript
+class CodeTypeWidget extends TypeWidget {
+    static getType() { return 'code'; }
+    
+    private codeMirror: CodeMirror;
+    
+    async doRender() {
+        const $container = $('<div class="code-editor">');
+        
+        this.codeMirror = CodeMirror($container[0], {
+            value: await this.note.getContent(),
+            mode: this.note.mime,
+            theme: 'default',
+            lineNumbers: true
+        });
+        
+        return $container;
+    }
+}
+```
+
+## Widget Composition
+
+### Container Widgets
+
+```typescript
+// Flexible container layouts
+class FlexContainer extends BasicWidget {
+    constructor(private direction: 'row' | 'column') {
+        super();
+    }
+    
+    doRender() {
+        this.$widget = $('<div class="flex-container">')
+            .css('display', 'flex')
+            .css('flex-direction', this.direction);
+            
+        for (const child of this.children) {
+            this.$widget.append(child.render());
+        }
+        
+        return this.$widget;
+    }
+}
+
+// Tab container
+class TabContainer extends BasicWidget {
+    private tabs: Array<{title: string, widget: BasicWidget}> = [];
+    
+    addTab(title: string, widget: BasicWidget) {
+        this.tabs.push({title, widget});
+        this.child(widget);
+        return this;
+    }
+    
+    doRender() {
+        // Render tab headers and content panels
+    }
+}
+```
+
+### Composite Widgets
+
+```typescript
+class NoteEditorWidget extends NoteContextAwareWidget {
+    private typeWidget: TypeWidget;
+    private titleWidget: NoteTitleWidget;
+    private toolbarWidget: NoteToolbarWidget;
+    
+    constructor() {
+        super();
+        
+        this.child(
+            this.toolbarWidget = new NoteToolbarWidget(),
+            this.titleWidget = new NoteTitleWidget(),
+            // Type widget added dynamically
+        );
+    }
+    
+    async refreshWithNote(note: FNote) {
+        // Remove old type widget
+        if (this.typeWidget) {
+            this.typeWidget.remove();
+        }
+        
+        // Add appropriate type widget
+        const WidgetClass = typeWidgetService.getWidgetClass(note.type);
+        this.typeWidget = new WidgetClass();
+        this.child(this.typeWidget);
+        
+        await this.typeWidget.refresh();
+    }
+}
+```
+
+## Widget Communication
+
+### Event System
+
+```typescript
+// Publishing events
+class PublisherWidget extends BasicWidget {
+    async handleClick() {
+        // Local event
+        this.trigger('itemSelected', { itemId: '123' });
+        
+        // Global event
+        appContext.triggerEvent('noteChanged', { noteId: this.noteId });
+    }
+}
+
+// Subscribing to events
+class SubscriberWidget extends BasicWidget {
+    constructor() {
+        super();
+        
+        // Local event subscription
+        this.on('itemSelected', (event) => {
+            console.log('Item selected:', event.itemId);
+        });
+        
+        // Global event subscription
+        appContext.addEventListener('noteChanged', (event) => {
+            this.handleNoteChange(event.noteId);
+        });
+    }
+}
+```
+
+### Command System
+
+```typescript
+// Registering commands
+class CommandWidget extends BasicWidget {
+    constructor() {
+        super();
+        
+        this.bindCommand('saveNote', () => this.saveNote());
+        this.bindCommand('deleteNote', () => this.deleteNote());
+    }
+    
+    getCommands() {
+        return [
+            {
+                command: 'myWidget:doAction',
+                handler: () => this.doAction(),
+                hotkey: 'ctrl+shift+a'
+            }
+        ];
+    }
+}
+```
+
+## Custom Widget Development
+
+### Creating Custom Widgets
+
+```typescript
+// 1. Define widget class
+class TaskListWidget extends NoteContextAwareWidget {
+    doRender() {
+        this.$widget = $('<div class="task-list-widget">');
+        this.$list = $('<ul>').appendTo(this.$widget);
+        return this.$widget;
+    }
+    
+    async refreshWithNote(note: FNote) {
+        const tasks = await this.loadTasks(note);
+        
+        this.$list.empty();
+        for (const task of tasks) {
+            $('<li>')
+                .text(task.title)
+                .toggleClass('completed', task.completed)
+                .appendTo(this.$list);
+        }
+    }
+    
+    private async loadTasks(note: FNote) {
+        // Load task data from note attributes
+        const taskLabels = note.getLabels('task');
+        return taskLabels.map(label => JSON.parse(label.value));
+    }
+}
+
+// 2. Register widget
+api.addWidget(TaskListWidget);
+```
+
+### Widget Lifecycle
+
+```typescript
+class LifecycleWidget extends NoteContextAwareWidget {
+    // 1. Construction
+    constructor() {
+        super();
+        console.log('Widget constructed');
+    }
+    
+    // 2. Initial render
+    doRender() {
+        console.log('Initial render');
+        return $('<div>');
+    }
+    
+    // 3. Context initialization
+    async refresh() {
+        console.log('Context refresh');
+        await super.refresh();
+    }
+    
+    // 4. Note updates
+    async refreshWithNote(note: FNote) {
+        console.log('Note refresh:', note.noteId);
+    }
+    
+    // 5. Cleanup
+    async cleanup() {
+        console.log('Widget cleanup');
+        // Release resources
+    }
+}
+```
+
+## Performance Optimization
+
+### Lazy Loading
+
+```typescript
+class LazyWidget extends BasicWidget {
+    private contentLoaded = false;
+    
+    async becomeVisible() {
+        if (!this.contentLoaded) {
+            await this.loadContent();
+            this.contentLoaded = true;
+        }
+    }
+    
+    private async loadContent() {
+        // Heavy content loading
+        const data = await server.get('expensive-data');
+        this.renderContent(data);
+    }
+}
+```
+
+### Debouncing Updates
+
+```typescript
+class DebouncedWidget extends NoteContextAwareWidget {
+    private refreshDebounced = utils.debounce(
+        () => this.doRefresh(),
+        500
+    );
+    
+    async refreshWithNote(note: FNote) {
+        // Debounce rapid updates
+        this.refreshDebounced();
+    }
+    
+    private async doRefresh() {
+        // Actual refresh logic
+    }
+}
+```
+
+### Virtual Scrolling
+
+```typescript
+class VirtualListWidget extends BasicWidget {
+    private visibleItems: any[] = [];
+    
+    renderVisibleItems(scrollTop: number) {
+        const itemHeight = 30;
+        const containerHeight = this.$widget.height();
+        
+        const startIndex = Math.floor(scrollTop / itemHeight);
+        const endIndex = Math.ceil((scrollTop + containerHeight) / itemHeight);
+        
+        this.visibleItems = this.allItems.slice(startIndex, endIndex);
+        this.renderItems();
+    }
+}
+```
+
+## Best Practices
+
+### Widget Design
+
+1.  **Single Responsibility**: Each widget should have one clear purpose
+2.  **Composition over Inheritance**: Use composition for complex UIs
+3.  **Lazy Initialization**: Load resources only when needed
+4.  **Event Cleanup**: Remove event listeners in cleanup()
+
+### State Management
+
+```typescript
+class StatefulWidget extends NoteContextAwareWidget {
+    private state = {
+        isExpanded: false,
+        selectedItems: new Set<string>()
+    };
+    
+    setState(updates: Partial<typeof this.state>) {
+        Object.assign(this.state, updates);
+        this.renderState();
+    }
+    
+    private renderState() {
+        this.$widget.toggleClass('expanded', this.state.isExpanded);
+        // Update DOM based on state
+    }
+}
+```
+
+### Error Handling
+
+```typescript
+class ResilientWidget extends BasicWidget {
+    async refreshWithNote(note: FNote) {
+        try {
+            await this.loadData(note);
+        } catch (error) {
+            this.showError('Failed to load data');
+            console.error('Widget error:', error);
+        }
+    }
+    
+    private showError(message: string) {
+        this.$widget.html(`
+            <div class="alert alert-danger">
+                ${message}
+            </div>
+        `);
+    }
+}
+```
+
+## Testing Widgets
+
+```typescript
+// Widget test example
+describe('TaskListWidget', () => {
+    let widget: TaskListWidget;
+    let note: FNote;
+    
+    beforeEach(() => {
+        widget = new TaskListWidget();
+        note = createMockNote({
+            noteId: 'test123',
+            attributes: [
+                { type: 'label', name: 'task', value: '{"title":"Task 1"}' }
+            ]
+        });
+    });
+    
+    it('should render tasks', async () => {
+        await widget.refreshWithNote(note);
+        
+        const tasks = widget.$widget.find('li');
+        expect(tasks.length).toBe(1);
+        expect(tasks.text()).toBe('Task 1');
+    });
+});
+```
+
+## Related Documentation
+
+*   [Frontend Basics](#root/8Cc2LnZFcF3K) - Frontend scripting guide
+*   [Custom Widgets](#root/VAerafq2qHO1) - Creating custom widgets
+*   [Script API](#root/7Pp4moCrBVzA) - Widget API reference
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/Plugin Development/Backend Script Development.md b/docs/Developer Guide/Developer Guide/Plugin Development/Backend Script Development.md
new file mode 100644
index 0000000000..f2545c1ce2
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/Plugin Development/Backend Script Development.md	
@@ -0,0 +1,1422 @@
+# Backend Script Development
+## Backend Script Development Guide
+
+This guide covers developing backend scripts in Trilium Notes. Backend scripts run in the Node.js context on the server, providing access to the database, file system, and external services.
+
+## Prerequisites
+
+*   JavaScript/Node.js knowledge
+*   Understanding of async/await patterns
+*   Familiarity with Trilium's database structure
+*   Basic knowledge of SQL (optional but helpful)
+
+## Getting Started
+
+### Creating a Backend Script
+
+1.  Create a new code note with type "JS Backend"
+2.  Add appropriate execution labels:
+    *   `#run=backendStartup` - Run once on startup
+    *   `#run=hourly` - Run every hour
+    *   `#run=daily` - Run daily
+    *   `#run=never` - Manual execution only
+
+```javascript
+// Basic backend script
+const note = await api.createNote(
+    'root',
+    'Generated Note',
+    `Created at ${new Date().toISOString()}`
+);
+
+api.log(`Created note ${note.noteId}`);
+```
+
+### Execution Context
+
+Backend scripts have access to:
+
+*   Full Node.js API
+*   Trilium's Backend API (`api` object)
+*   Database access via SQL
+*   File system operations
+*   Network requests
+*   System processes
+
+## Backend API Reference
+
+### Core API Methods
+
+```javascript
+// Logging
+api.log('Information message');
+api.logWarning('Warning message');
+api.logError('Error message');
+
+// Get application info
+const appInfo = api.getAppInfo();
+console.log(`Trilium ${appInfo.appVersion}`);
+
+// Get instance name
+const instanceName = api.getInstanceName();
+
+// Get current date note
+const todayNote = await api.getTodayNote();
+const dateNote = await api.getDateNote('2024-01-15');
+
+// Get week note
+const weekNote = await api.getWeekNote('2024-01-15');
+
+// Get month note
+const monthNote = await api.getMonthNote('2024-01');
+
+// Get year note  
+const yearNote = await api.getYearNote('2024');
+```
+
+### Note Operations
+
+#### Creating Notes
+
+```javascript
+// Simple note creation
+const note = await api.createNote(
+    parentNoteId,
+    title,
+    content
+);
+
+// Create note with parameters
+const note = await api.createNewNote({
+    parentNoteId: 'root',
+    title: 'Advanced Note',
+    content: 'Content here',
+    type: 'text',
+    mime: 'text/html',
+    isProtected: false
+});
+
+// Create data note
+const dataNote = await api.createDataNote(
+    parentNoteId,
+    'config.json',
+    { 
+        settings: {},
+        version: 1
+    }
+);
+
+// Create text note with attributes
+const note = await api.createTextNote(
+    parentNoteId,
+    'Task',
+    'Task description',
+    {
+        attributes: [
+            { type: 'label', name: 'status', value: 'pending' },
+            { type: 'label', name: 'priority', value: 'high' },
+            { type: 'relation', name: 'assignedTo', value: userId }
+        ]
+    }
+);
+```
+
+#### Reading Notes
+
+```javascript
+// Get note by ID
+const note = await api.getNote(noteId);
+
+// Get note with content
+const noteWithContent = await api.getNoteWithContent(noteId);
+
+// Get root note
+const root = await api.getRootNote();
+
+// Get notes by label
+const tasksNote = await api.getNoteWithLabel('tasks');
+const pendingTasks = await api.getNotesWithLabel('status', 'pending');
+
+// Search notes
+const results = await api.searchForNotes('type:text @label=important');
+
+// Get note content
+const content = await note.getContent();
+const jsonContent = await note.getJsonContent();
+```
+
+#### Modifying Notes
+
+```javascript
+// Update note properties
+note.title = 'New Title';
+note.type = 'code';
+note.mime = 'application/javascript';
+await note.save();
+
+// Set content
+await note.setContent('New content');
+await note.setJsonContent({ data: 'value' });
+
+// Add attributes
+await note.addLabel('status', 'completed');
+await note.addRelation('relatedTo', targetNoteId);
+
+// Remove attributes
+await note.removeLabel('draft');
+await note.removeRelation('obsolete');
+
+// Toggle label
+await note.toggleLabel('archived');
+await note.toggleLabel('priority', 'low');
+
+// Set label (add or update)
+await note.setLabel('version', '2.0');
+
+// Set relation
+await note.setRelation('parent', parentNoteId);
+```
+
+### Database Operations
+
+#### SQL Queries
+
+```javascript
+// Execute query
+const rows = api.sql.getRows(`
+    SELECT noteId, title, type 
+    FROM notes 
+    WHERE isDeleted = 0 
+    AND type = ?
+`, ['text']);
+
+// Get single row
+const note = api.sql.getRow(`
+    SELECT * FROM notes WHERE noteId = ?
+`, [noteId]);
+
+// Get single value
+const count = api.sql.getValue(`
+    SELECT COUNT(*) FROM notes WHERE type = ?
+`, ['text']);
+
+// Execute statement (INSERT, UPDATE, DELETE)
+api.sql.execute(`
+    UPDATE notes 
+    SET dateModified = ? 
+    WHERE noteId = ?
+`, [new Date().toISOString(), noteId]);
+
+// Transaction
+api.sql.transactional(() => {
+    api.sql.execute('INSERT INTO ...', params1);
+    api.sql.execute('UPDATE ...', params2);
+    // All or nothing - rollback on error
+});
+```
+
+#### Entity Access
+
+```javascript
+// Access Becca entities directly
+const becca = api.getBecca();
+
+// Get all notes
+const allNotes = Object.values(becca.notes);
+
+// Get all attributes
+const allAttributes = Object.values(becca.attributes);
+
+// Get branches (hierarchy)
+const branches = Object.values(becca.branches);
+
+// Find entities
+const note = becca.getNote(noteId);
+const attribute = becca.getAttribute(attributeId);
+const branch = becca.getBranch(branchId);
+```
+
+### Date and Time
+
+```javascript
+// Using dayjs
+const dayjs = api.dayjs;
+
+// Current date/time
+const now = dayjs();
+const formatted = now.format('YYYY-MM-DD HH:mm:ss');
+
+// Date arithmetic
+const tomorrow = dayjs().add(1, 'day');
+const lastWeek = dayjs().subtract(1, 'week');
+const endOfMonth = dayjs().endOf('month');
+
+// Parse dates
+const date = dayjs('2024-01-15');
+const parsed = dayjs('01/15/2024', 'MM/DD/YYYY');
+
+// Compare dates
+const isPast = dayjs('2024-01-01').isBefore(dayjs());
+const isFuture = dayjs('2025-01-01').isAfter(dayjs());
+const isSame = dayjs('2024-01-15').isSame('2024-01-15', 'day');
+```
+
+### HTTP Requests
+
+```javascript
+// Using fetch (recommended)
+const response = await fetch('https://api.example.com/data', {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'Authorization': 'Bearer token'
+    },
+    body: JSON.stringify({ key: 'value' })
+});
+
+const data = await response.json();
+
+// Using axios (deprecated but available)
+const axios = api.axios;
+const response = await axios.get('https://api.example.com/data');
+const data = response.data;
+```
+
+### File System Operations
+
+```javascript
+const fs = require('fs').promises;
+const path = require('path');
+
+// Read file
+const content = await fs.readFile('/path/to/file.txt', 'utf8');
+
+// Write file
+await fs.writeFile('/path/to/output.txt', 'Content here');
+
+// Check if file exists
+const exists = await fs.access('/path/to/file')
+    .then(() => true)
+    .catch(() => false);
+
+// Read directory
+const files = await fs.readdir('/path/to/directory');
+
+// Get file stats
+const stats = await fs.stat('/path/to/file');
+const fileSize = stats.size;
+const isDirectory = stats.isDirectory();
+```
+
+## Complete Example: Note Backup Automation
+
+Here's a comprehensive example that automatically backs up important notes:
+
+```javascript
+/**
+ * Automatic Note Backup System
+ * Backs up notes with specific labels to JSON files
+ * Run daily with #run=daily
+ */
+
+const fs = require('fs').promises;
+const path = require('path');
+const crypto = require('crypto');
+
+class BackupManager {
+    constructor() {
+        this.backupDir = this.getBackupDirectory();
+        this.config = {
+            maxBackups: 30,
+            backupLabels: ['important', 'backup', 'critical'],
+            excludeLabels: ['draft', 'temporary'],
+            includeAttachments: true,
+            compress: true
+        };
+    }
+    
+    async run() {
+        try {
+            api.log('Starting backup process...');
+            
+            // Ensure backup directory exists
+            await this.ensureBackupDirectory();
+            
+            // Get notes to backup
+            const notes = await this.getNotesToBackup();
+            api.log(`Found ${notes.length} notes to backup`);
+            
+            // Create backup
+            const backupPath = await this.createBackup(notes);
+            api.log(`Backup created: ${backupPath}`);
+            
+            // Clean old backups
+            await this.cleanOldBackups();
+            
+            // Send notification
+            await this.sendNotification('success', notes.length);
+            
+            api.log('Backup process completed successfully');
+            
+        } catch (error) {
+            api.logError(`Backup failed: ${error.message}`);
+            await this.sendNotification('error', 0, error.message);
+        }
+    }
+    
+    getBackupDirectory() {
+        // Use data directory for backups
+        const dataDir = process.env.TRILIUM_DATA_DIR || './data';
+        return path.join(dataDir, 'backups');
+    }
+    
+    async ensureBackupDirectory() {
+        try {
+            await fs.access(this.backupDir);
+        } catch {
+            await fs.mkdir(this.backupDir, { recursive: true });
+        }
+    }
+    
+    async getNotesToBackup() {
+        const notes = [];
+        
+        // Get notes with backup labels
+        for (const label of this.config.backupLabels) {
+            const labeledNotes = await api.getNotesWithLabel(label);
+            notes.push(...labeledNotes);
+        }
+        
+        // Filter out excluded notes
+        const filtered = notes.filter(note => {
+            const labels = note.getLabels();
+            return !labels.some(l => 
+                this.config.excludeLabels.includes(l.name)
+            );
+        });
+        
+        // Remove duplicates
+        const uniqueNotes = Array.from(
+            new Map(filtered.map(n => [n.noteId, n])).values()
+        );
+        
+        return uniqueNotes;
+    }
+    
+    async createBackup(notes) {
+        const timestamp = api.dayjs().format('YYYY-MM-DD_HHmmss');
+        const backupName = `backup_${timestamp}.json`;
+        const backupPath = path.join(this.backupDir, backupName);
+        
+        const backupData = {
+            version: '1.0',
+            timestamp: new Date().toISOString(),
+            instanceName: api.getInstanceName(),
+            appVersion: api.getAppInfo().appVersion,
+            noteCount: notes.length,
+            notes: []
+        };
+        
+        for (const note of notes) {
+            const noteData = await this.exportNote(note);
+            backupData.notes.push(noteData);
+        }
+        
+        // Write backup file
+        const json = JSON.stringify(backupData, null, 2);
+        
+        if (this.config.compress) {
+            const zlib = require('zlib');
+            const compressed = await new Promise((resolve, reject) => {
+                zlib.gzip(json, (error, result) => {
+                    if (error) reject(error);
+                    else resolve(result);
+                });
+            });
+            await fs.writeFile(backupPath + '.gz', compressed);
+            return backupPath + '.gz';
+        } else {
+            await fs.writeFile(backupPath, json);
+            return backupPath;
+        }
+    }
+    
+    async exportNote(note) {
+        const content = await note.getContent();
+        const attributes = note.getAttributes();
+        const children = await note.getChildNotes();
+        
+        const noteData = {
+            noteId: note.noteId,
+            title: note.title,
+            type: note.type,
+            mime: note.mime,
+            isProtected: note.isProtected,
+            dateCreated: note.dateCreated,
+            dateModified: note.dateModified,
+            content: content,
+            contentHash: this.hashContent(content),
+            attributes: attributes.map(attr => ({
+                type: attr.type,
+                name: attr.name,
+                value: attr.value,
+                position: attr.position
+            })),
+            childrenIds: children.map(c => c.noteId),
+            parentIds: note.getParentNotes().map(p => p.noteId)
+        };
+        
+        // Include attachments if configured
+        if (this.config.includeAttachments && note.type === 'file') {
+            const attachments = await note.getAttachments();
+            noteData.attachments = [];
+            
+            for (const attachment of attachments) {
+                const blob = await attachment.getBlob();
+                noteData.attachments.push({
+                    attachmentId: attachment.attachmentId,
+                    title: attachment.title,
+                    role: attachment.role,
+                    mime: attachment.mime,
+                    content: blob.content.toString('base64')
+                });
+            }
+        }
+        
+        return noteData;
+    }
+    
+    hashContent(content) {
+        return crypto.createHash('sha256')
+            .update(content)
+            .digest('hex');
+    }
+    
+    async cleanOldBackups() {
+        const files = await fs.readdir(this.backupDir);
+        const backupFiles = files
+            .filter(f => f.startsWith('backup_'))
+            .sort()
+            .reverse();
+        
+        if (backupFiles.length > this.config.maxBackups) {
+            const toDelete = backupFiles.slice(this.config.maxBackups);
+            
+            for (const file of toDelete) {
+                const filePath = path.join(this.backupDir, file);
+                await fs.unlink(filePath);
+                api.log(`Deleted old backup: ${file}`);
+            }
+        }
+    }
+    
+    async sendNotification(status, noteCount, error = null) {
+        // Create or update status note
+        let statusNote = await api.getNoteWithLabel('backupStatus');
+        
+        if (!statusNote) {
+            statusNote = await api.createNote(
+                'root',
+                'Backup Status',
+                ''
+            );
+            await statusNote.addLabel('backupStatus', 'true');
+            await statusNote.addLabel('hideFromTree', 'true');
+        }
+        
+        const statusHtml = `
+            <h2>Backup Status</h2>
+            <table>
+                <tr>
+                    <td><strong>Last Run:</strong></td>
+                    <td>${new Date().toISOString()}</td>
+                </tr>
+                <tr>
+                    <td><strong>Status:</strong></td>
+                    <td>${status === 'success' ? '✅ Success' : '❌ Failed'}</td>
+                </tr>
+                <tr>
+                    <td><strong>Notes Backed Up:</strong></td>
+                    <td>${noteCount}</td>
+                </tr>
+                ${error ? `
+                <tr>
+                    <td><strong>Error:</strong></td>
+                    <td>${error}</td>
+                </tr>
+                ` : ''}
+                <tr>
+                    <td><strong>Backup Directory:</strong></td>
+                    <td><code>${this.backupDir}</code></td>
+                </tr>
+            </table>
+            
+            <h3>Recent Backups</h3>
+            <ul>
+                ${await this.getRecentBackupsList()}
+            </ul>
+        `;
+        
+        await statusNote.setContent(statusHtml);
+    }
+    
+    async getRecentBackupsList() {
+        const files = await fs.readdir(this.backupDir);
+        const backupFiles = files
+            .filter(f => f.startsWith('backup_'))
+            .sort()
+            .reverse()
+            .slice(0, 10);
+        
+        const items = [];
+        for (const file of backupFiles) {
+            const filePath = path.join(this.backupDir, file);
+            const stats = await fs.stat(filePath);
+            const size = (stats.size / 1024).toFixed(2);
+            items.push(`<li>${file} (${size} KB)</li>`);
+        }
+        
+        return items.join('\n');
+    }
+    
+    // Restore functionality
+    async restore(backupFile) {
+        api.log(`Starting restore from ${backupFile}`);
+        
+        const backupPath = path.join(this.backupDir, backupFile);
+        let content;
+        
+        if (backupFile.endsWith('.gz')) {
+            const zlib = require('zlib');
+            const compressed = await fs.readFile(backupPath);
+            content = await new Promise((resolve, reject) => {
+                zlib.gunzip(compressed, (error, result) => {
+                    if (error) reject(error);
+                    else resolve(result.toString());
+                });
+            });
+        } else {
+            content = await fs.readFile(backupPath, 'utf8');
+        }
+        
+        const backupData = JSON.parse(content);
+        
+        // Create restore folder
+        const restoreNote = await api.createNote(
+            'root',
+            `Restore ${backupData.timestamp}`,
+            `<p>Restored ${backupData.noteCount} notes from backup</p>`
+        );
+        
+        // Restore notes
+        const noteIdMap = new Map();
+        
+        for (const noteData of backupData.notes) {
+            const restoredNote = await this.restoreNote(
+                noteData,
+                restoreNote.noteId,
+                noteIdMap
+            );
+        }
+        
+        api.log(`Restore completed: ${backupData.noteCount} notes`);
+        return restoreNote;
+    }
+    
+    async restoreNote(noteData, parentId, noteIdMap) {
+        // Create note
+        const note = await api.createNewNote({
+            parentNoteId: parentId,
+            title: noteData.title,
+            content: noteData.content,
+            type: noteData.type,
+            mime: noteData.mime,
+            isProtected: noteData.isProtected
+        });
+        
+        // Map old ID to new ID
+        noteIdMap.set(noteData.noteId, note.noteId);
+        
+        // Restore attributes
+        for (const attr of noteData.attributes) {
+            if (attr.type === 'label') {
+                await note.addLabel(attr.name, attr.value);
+            } else if (attr.type === 'relation') {
+                // Will be restored in second pass
+            }
+        }
+        
+        // Restore attachments
+        if (noteData.attachments) {
+            for (const attachmentData of noteData.attachments) {
+                const content = Buffer.from(
+                    attachmentData.content,
+                    'base64'
+                );
+                await note.addAttachment({
+                    title: attachmentData.title,
+                    role: attachmentData.role,
+                    mime: attachmentData.mime,
+                    content: content
+                });
+            }
+        }
+        
+        return note;
+    }
+}
+
+// Run backup
+const backup = new BackupManager();
+await backup.run();
+
+// Optional: Add manual trigger
+api.createNote(
+    'root',
+    'Run Backup',
+    `
+    <button onclick="api.runAsyncOnBackendWithManualTransactionHandling(async () => {
+        const backup = new BackupManager();
+        await backup.run();
+    })">Run Backup Now</button>
+    `
+);
+```
+
+## Advanced Techniques
+
+### Scheduled Tasks
+
+```javascript
+// Schedule task for specific time
+class TaskScheduler {
+    constructor() {
+        this.tasks = [];
+    }
+    
+    scheduleDaily(hour, minute, taskFunc) {
+        const task = {
+            type: 'daily',
+            hour,
+            minute,
+            func: taskFunc,
+            lastRun: null
+        };
+        
+        this.tasks.push(task);
+        this.startScheduler();
+    }
+    
+    scheduleHourly(minute, taskFunc) {
+        const task = {
+            type: 'hourly',
+            minute,
+            func: taskFunc,
+            lastRun: null
+        };
+        
+        this.tasks.push(task);
+        this.startScheduler();
+    }
+    
+    startScheduler() {
+        setInterval(() => {
+            this.checkTasks();
+        }, 60000); // Check every minute
+    }
+    
+    checkTasks() {
+        const now = api.dayjs();
+        
+        for (const task of this.tasks) {
+            if (this.shouldRun(task, now)) {
+                this.runTask(task);
+                task.lastRun = now;
+            }
+        }
+    }
+    
+    shouldRun(task, now) {
+        if (task.type === 'daily') {
+            return now.hour() === task.hour && 
+                   now.minute() === task.minute &&
+                   (!task.lastRun || !now.isSame(task.lastRun, 'day'));
+        } else if (task.type === 'hourly') {
+            return now.minute() === task.minute &&
+                   (!task.lastRun || !now.isSame(task.lastRun, 'hour'));
+        }
+        return false;
+    }
+    
+    async runTask(task) {
+        try {
+            await task.func();
+        } catch (error) {
+            api.logError(`Task failed: ${error.message}`);
+        }
+    }
+}
+
+const scheduler = new TaskScheduler();
+
+// Schedule daily report at 9:00 AM
+scheduler.scheduleDaily(9, 0, async () => {
+    await generateDailyReport();
+});
+
+// Schedule hourly sync at :30
+scheduler.scheduleHourly(30, async () => {
+    await syncWithExternalService();
+});
+```
+
+### Working with External Services
+
+```javascript
+// Integrate with external API
+class ExternalServiceClient {
+    constructor(apiKey) {
+        this.apiKey = apiKey;
+        this.baseUrl = 'https://api.example.com';
+    }
+    
+    async request(endpoint, method = 'GET', data = null) {
+        const url = `${this.baseUrl}${endpoint}`;
+        
+        const options = {
+            method,
+            headers: {
+                'Authorization': `Bearer ${this.apiKey}`,
+                'Content-Type': 'application/json'
+            }
+        };
+        
+        if (data) {
+            options.body = JSON.stringify(data);
+        }
+        
+        try {
+            const response = await fetch(url, options);
+            
+            if (!response.ok) {
+                throw new Error(`HTTP ${response.status}: ${response.statusText}`);
+            }
+            
+            return await response.json();
+            
+        } catch (error) {
+            api.logError(`External API error: ${error.message}`);
+            throw error;
+        }
+    }
+    
+    async syncNotes() {
+        // Get notes to sync
+        const notes = await api.getNotesWithLabel('sync');
+        
+        for (const note of notes) {
+            const content = await note.getContent();
+            
+            // Send to external service
+            const result = await this.request('/notes', 'POST', {
+                id: note.noteId,
+                title: note.title,
+                content: content,
+                tags: note.getLabels().map(l => l.value)
+            });
+            
+            // Update sync status
+            await note.setLabel('syncId', result.id);
+            await note.setLabel('lastSync', new Date().toISOString());
+        }
+        
+        api.log(`Synced ${notes.length} notes`);
+    }
+}
+
+// Use the client
+const apiKey = await api.getOption('externalApiKey');
+const client = new ExternalServiceClient(apiKey);
+await client.syncNotes();
+```
+
+### Database Transactions
+
+```javascript
+// Complex database operation with transaction
+async function reorganizeNotes() {
+    await api.sql.transactional(async () => {
+        // Get all notes to reorganize
+        const notes = api.sql.getRows(`
+            SELECT noteId, title, dateCreated 
+            FROM notes 
+            WHERE type = ? 
+            AND isDeleted = 0
+        `, ['text']);
+        
+        // Create year/month structure
+        for (const noteRow of notes) {
+            const date = api.dayjs(noteRow.dateCreated);
+            const year = date.year();
+            const month = date.format('MM');
+            
+            // Get or create year note
+            let yearNote = await api.getYearNote(year.toString());
+            if (!yearNote) {
+                yearNote = await api.createNote(
+                    'root',
+                    year.toString(),
+                    ''
+                );
+            }
+            
+            // Get or create month note
+            let monthNote = await api.getMonthNote(`${year}-${month}`);
+            if (!monthNote) {
+                monthNote = await api.createNote(
+                    yearNote.noteId,
+                    date.format('MMMM'),
+                    ''
+                );
+            }
+            
+            // Move note to month
+            const note = await api.getNote(noteRow.noteId);
+            await api.sql.execute(`
+                UPDATE branches 
+                SET parentNoteId = ? 
+                WHERE noteId = ?
+            `, [monthNote.noteId, note.noteId]);
+        }
+        
+        api.log(`Reorganized ${notes.length} notes`);
+    });
+}
+```
+
+### Event Processing
+
+```javascript
+// Process entity change events
+class EventProcessor {
+    constructor() {
+        this.handlers = new Map();
+        this.registerHandlers();
+    }
+    
+    registerHandlers() {
+        // Handle note creation
+        this.handlers.set('create_note', async (entity) => {
+            api.log(`Note created: ${entity.title}`);
+            
+            // Auto-tag based on content
+            const content = await entity.getContent();
+            if (content.includes('TODO')) {
+                await entity.addLabel('todo', 'true');
+            }
+            if (content.includes('IMPORTANT')) {
+                await entity.addLabel('priority', 'high');
+            }
+        });
+        
+        // Handle attribute changes
+        this.handlers.set('update_attribute', async (entity) => {
+            if (entity.name === 'status' && entity.value === 'completed') {
+                const note = await api.getNote(entity.noteId);
+                await note.addLabel('completedDate', new Date().toISOString());
+            }
+        });
+    }
+    
+    async processEvent(event) {
+        const handler = this.handlers.get(event.type);
+        if (handler) {
+            await handler(event.entity);
+        }
+    }
+}
+
+const processor = new EventProcessor();
+
+// Process events (usually triggered by note changes)
+api.onNoteChange(async (note) => {
+    await processor.processEvent({
+        type: 'update_note',
+        entity: note
+    });
+});
+```
+
+## Performance Optimization
+
+### Batch Operations
+
+```javascript
+// Batch process notes for better performance
+async function batchProcess(notes, batchSize = 100) {
+    const results = [];
+    
+    for (let i = 0; i < notes.length; i += batchSize) {
+        const batch = notes.slice(i, i + batchSize);
+        
+        // Process batch in parallel
+        const batchResults = await Promise.all(
+            batch.map(note => processNote(note))
+        );
+        
+        results.push(...batchResults);
+        
+        // Log progress
+        const progress = Math.min(i + batchSize, notes.length);
+        api.log(`Processed ${progress}/${notes.length} notes`);
+    }
+    
+    return results;
+}
+
+async function processNote(note) {
+    // Process individual note
+    const content = await note.getContent();
+    // ... processing logic
+    return result;
+}
+```
+
+### Caching
+
+```javascript
+// Implement caching for expensive operations
+class Cache {
+    constructor(ttl = 3600000) { // 1 hour default
+        this.cache = new Map();
+        this.ttl = ttl;
+    }
+    
+    set(key, value) {
+        this.cache.set(key, {
+            value,
+            expires: Date.now() + this.ttl
+        });
+    }
+    
+    get(key) {
+        const item = this.cache.get(key);
+        
+        if (!item) return null;
+        
+        if (Date.now() > item.expires) {
+            this.cache.delete(key);
+            return null;
+        }
+        
+        return item.value;
+    }
+    
+    clear() {
+        this.cache.clear();
+    }
+}
+
+const cache = new Cache();
+
+async function getProcessedContent(noteId) {
+    let result = cache.get(noteId);
+    
+    if (!result) {
+        const note = await api.getNote(noteId);
+        result = await expensiveProcessing(note);
+        cache.set(noteId, result);
+    }
+    
+    return result;
+}
+```
+
+### Resource Management
+
+```javascript
+// Manage resources properly
+class ResourceManager {
+    constructor() {
+        this.resources = [];
+    }
+    
+    async acquireConnection() {
+        // Get database connection
+        const conn = await api.sql.getConnection();
+        this.resources.push(conn);
+        return conn;
+    }
+    
+    async cleanup() {
+        // Clean up all resources
+        for (const resource of this.resources) {
+            try {
+                if (resource.close) {
+                    await resource.close();
+                }
+            } catch (error) {
+                api.logError(`Failed to close resource: ${error.message}`);
+            }
+        }
+        
+        this.resources = [];
+    }
+}
+
+const manager = new ResourceManager();
+
+try {
+    // Use resources
+    const conn = await manager.acquireConnection();
+    // ... do work
+} finally {
+    // Always cleanup
+    await manager.cleanup();
+}
+```
+
+## Error Handling and Logging
+
+```javascript
+// Comprehensive error handling
+class ErrorHandler {
+    async handle(error, context) {
+        // Log error
+        api.logError(`Error in ${context}: ${error.message}`);
+        api.logError(`Stack: ${error.stack}`);
+        
+        // Create error note
+        const errorNote = await this.getOrCreateErrorLog();
+        await this.logErrorToNote(errorNote, error, context);
+        
+        // Send notification if critical
+        if (this.isCritical(error)) {
+            await this.sendNotification(error, context);
+        }
+    }
+    
+    async getOrCreateErrorLog() {
+        let errorLog = await api.getNoteWithLabel('errorLog');
+        
+        if (!errorLog) {
+            errorLog = await api.createNote(
+                'root',
+                'Script Error Log',
+                '<h1>Script Errors</h1>'
+            );
+            await errorLog.addLabel('errorLog', 'true');
+            await errorLog.addLabel('hideFromTree', 'true');
+        }
+        
+        return errorLog;
+    }
+    
+    async logErrorToNote(note, error, context) {
+        const content = await note.getContent();
+        const errorEntry = `
+            <div class="error-entry">
+                <h3>${new Date().toISOString()}</h3>
+                <p><strong>Context:</strong> ${context}</p>
+                <p><strong>Error:</strong> ${error.message}</p>
+                <pre>${error.stack}</pre>
+            </div>
+            <hr>
+        `;
+        
+        await note.setContent(errorEntry + content);
+    }
+    
+    isCritical(error) {
+        return error.message.includes('CRITICAL') ||
+               error.code === 'ECONNREFUSED' ||
+               error.code === 'EACCES';
+    }
+    
+    async sendNotification(error, context) {
+        // Create notification note
+        const notification = await api.createNote(
+            'root',
+            `CRITICAL ERROR: ${context}`,
+            `<p style="color: red;">A critical error occurred:</p>
+             <pre>${error.message}</pre>`
+        );
+        
+        await notification.addLabel('notification', 'error');
+        await notification.addLabel('priority', 'high');
+    }
+}
+
+const errorHandler = new ErrorHandler();
+
+// Usage in scripts
+try {
+    await riskyOperation();
+} catch (error) {
+    await errorHandler.handle(error, 'riskyOperation');
+}
+```
+
+## Security Considerations
+
+```javascript
+// Secure handling of sensitive data
+class SecureStorage {
+    async storeSecret(key, value) {
+        // Encrypt before storing
+        const encrypted = await this.encrypt(value);
+        
+        // Store in protected note
+        let secretNote = await api.getNoteWithLabel('secrets');
+        if (!secretNote) {
+            secretNote = await api.createNote(
+                'root',
+                'Secrets',
+                '{}'
+            );
+            await secretNote.addLabel('secrets', 'true');
+            await secretNote.addLabel('hideFromTree', 'true');
+            await secretNote.setProtected(true);
+        }
+        
+        const secrets = await secretNote.getJsonContent();
+        secrets[key] = encrypted;
+        await secretNote.setJsonContent(secrets);
+    }
+    
+    async getSecret(key) {
+        const secretNote = await api.getNoteWithLabel('secrets');
+        if (!secretNote) return null;
+        
+        const secrets = await secretNote.getJsonContent();
+        const encrypted = secrets[key];
+        if (!encrypted) return null;
+        
+        return await this.decrypt(encrypted);
+    }
+    
+    async encrypt(text) {
+        const crypto = require('crypto');
+        const algorithm = 'aes-256-gcm';
+        const key = await this.getKey();
+        const iv = crypto.randomBytes(16);
+        
+        const cipher = crypto.createCipheriv(algorithm, key, iv);
+        
+        let encrypted = cipher.update(text, 'utf8', 'hex');
+        encrypted += cipher.final('hex');
+        
+        const authTag = cipher.getAuthTag();
+        
+        return {
+            encrypted,
+            authTag: authTag.toString('hex'),
+            iv: iv.toString('hex')
+        };
+    }
+    
+    async decrypt(data) {
+        const crypto = require('crypto');
+        const algorithm = 'aes-256-gcm';
+        const key = await this.getKey();
+        
+        const decipher = crypto.createDecipheriv(
+            algorithm,
+            key,
+            Buffer.from(data.iv, 'hex')
+        );
+        
+        decipher.setAuthTag(Buffer.from(data.authTag, 'hex'));
+        
+        let decrypted = decipher.update(data.encrypted, 'hex', 'utf8');
+        decrypted += decipher.final('utf8');
+        
+        return decrypted;
+    }
+    
+    async getKey() {
+        // Derive key from instance ID or use environment variable
+        const crypto = require('crypto');
+        const instanceId = api.getInstanceName();
+        return crypto.scryptSync(instanceId, 'salt', 32);
+    }
+}
+
+const storage = new SecureStorage();
+
+// Store API key securely
+await storage.storeSecret('apiKey', 'secret-key-123');
+
+// Retrieve API key
+const apiKey = await storage.getSecret('apiKey');
+```
+
+## Testing Backend Scripts
+
+```javascript
+// Test framework for backend scripts
+class TestSuite {
+    constructor(name) {
+        this.name = name;
+        this.tests = [];
+        this.results = [];
+    }
+    
+    test(description, testFunc) {
+        this.tests.push({ description, testFunc });
+    }
+    
+    async run() {
+        api.log(`Running test suite: ${this.name}`);
+        
+        for (const test of this.tests) {
+            try {
+                await test.testFunc();
+                this.results.push({
+                    description: test.description,
+                    status: 'PASS'
+                });
+                api.log(`✓ ${test.description}`);
+            } catch (error) {
+                this.results.push({
+                    description: test.description,
+                    status: 'FAIL',
+                    error: error.message
+                });
+                api.logError(`✗ ${test.description}: ${error.message}`);
+            }
+        }
+        
+        await this.generateReport();
+    }
+    
+    async generateReport() {
+        const passed = this.results.filter(r => r.status === 'PASS').length;
+        const failed = this.results.filter(r => r.status === 'FAIL').length;
+        
+        const report = `
+            <h1>Test Report: ${this.name}</h1>
+            <p>Run at: ${new Date().toISOString()}</p>
+            <p>Results: ${passed} passed, ${failed} failed</p>
+            
+            <h2>Test Results</h2>
+            <table>
+                <tr>
+                    <th>Test</th>
+                    <th>Status</th>
+                    <th>Error</th>
+                </tr>
+                ${this.results.map(r => `
+                    <tr>
+                        <td>${r.description}</td>
+                        <td style="color: ${r.status === 'PASS' ? 'green' : 'red'}">
+                            ${r.status}
+                        </td>
+                        <td>${r.error || ''}</td>
+                    </tr>
+                `).join('')}
+            </table>
+        `;
+        
+        const reportNote = await api.createNote(
+            'root',
+            `Test Report ${this.name}`,
+            report
+        );
+        
+        await reportNote.addLabel('testReport', 'true');
+    }
+}
+
+// Write tests
+const suite = new TestSuite('Backend API Tests');
+
+suite.test('Create and retrieve note', async () => {
+    const note = await api.createNote('root', 'Test Note', 'Content');
+    const retrieved = await api.getNote(note.noteId);
+    
+    if (retrieved.title !== 'Test Note') {
+        throw new Error('Title mismatch');
+    }
+});
+
+suite.test('Add and get label', async () => {
+    const note = await api.createNote('root', 'Label Test', '');
+    await note.addLabel('testLabel', 'testValue');
+    
+    const value = note.getLabelValue('testLabel');
+    if (value !== 'testValue') {
+        throw new Error('Label value mismatch');
+    }
+});
+
+suite.test('SQL query', async () => {
+    const count = api.sql.getValue('SELECT COUNT(*) FROM notes');
+    if (typeof count !== 'number') {
+        throw new Error('Count is not a number');
+    }
+});
+
+// Run tests
+await suite.run();
+```
+
+## Best Practices
+
+1.  **Error Handling**
+    
+    *   Always wrap async operations in try-catch
+    *   Log errors appropriately
+    *   Provide fallback behavior
+2.  **Performance**
+    
+    *   Use batch operations for multiple items
+    *   Implement caching for expensive operations
+    *   Clean up resources properly
+3.  **Security**
+    
+    *   Never hardcode sensitive data
+    *   Use protected notes for secrets
+    *   Validate and sanitize input
+4.  **Maintainability**
+    
+    *   Use classes for complex logic
+    *   Add logging for debugging
+    *   Write tests for critical functions
+5.  **Database Operations**
+    
+    *   Use transactions for related changes
+    *   Parameterize SQL queries
+    *   Handle database errors gracefully
+
+## Troubleshooting
+
+### Script Not Executing
+
+*   Check the `#run` label value
+*   Verify script has no syntax errors
+*   Check logs for error messages
+
+### Database Errors
+
+*   Ensure SQL syntax is correct
+*   Check table and column names
+*   Verify data types match
+
+### Memory Issues
+
+*   Implement pagination for large datasets
+*   Clear caches periodically
+*   Use streaming for large files
+
+### External API Issues
+
+*   Check network connectivity
+*   Verify API credentials
+*   Implement retry logic
+
+## Next Steps
+
+*   Review the Custom Note Type Development guide
+*   Explore existing backend scripts in the community
+*   Learn about Theme Development
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/Plugin Development/Custom Note Type Development.md b/docs/Developer Guide/Developer Guide/Plugin Development/Custom Note Type Development.md
new file mode 100644
index 0000000000..30d480aacb
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/Plugin Development/Custom Note Type Development.md	
@@ -0,0 +1,1624 @@
+# Custom Note Type Development
+## Custom Note Type Development Guide
+
+This guide covers creating new note types in Trilium Notes. Custom note types enable specialized content handling with dedicated rendering, editing, and behavior.
+
+## Prerequisites
+
+*   TypeScript/JavaScript proficiency
+*   Understanding of Trilium's widget system
+*   Knowledge of frontend and backend development
+*   Familiarity with HTML/CSS
+
+## Understanding Note Types
+
+### Built-in Note Types
+
+Trilium includes several built-in note types:
+
+*   **text** - Rich text with HTML content
+*   **code** - Syntax-highlighted code
+*   **file** - Binary attachments
+*   **image** - Image display
+*   **search** - Saved searches
+*   **book** - Hierarchical documentation
+*   **render** - HTML rendering
+*   **canvas** - Drawing with Excalidraw
+*   **mermaid** - Diagram generation
+*   **webView** - Embedded web pages
+*   **mindMap** - Mind mapping
+*   **relationMap** - Note relationships
+*   **noteMap** - Visual note hierarchy
+
+### Note Type Architecture
+
+Each note type consists of:
+
+1.  **Type Widget** - Handles rendering and editing
+2.  **MIME Type** - Content format specification
+3.  **Backend Handler** - Server-side processing
+4.  **Import/Export** - Data conversion logic
+
+## Creating a Custom Note Type
+
+### Step 1: Define the Note Type
+
+Register your note type in the system:
+
+```typescript
+// apps/client/src/services/note_types.ts
+
+export const NOTE_TYPES = {
+    // ... existing types
+    markdown: {
+        type: 'markdown',
+        mime: 'text/markdown',
+        label: 'Markdown',
+        icon: 'bx bx-markdown',
+        description: 'Markdown document with live preview'
+    }
+};
+```
+
+### Step 2: Create the Type Widget
+
+```typescript
+// apps/client/src/widgets/type_widgets/markdown.ts
+
+import TypeWidget from "./type_widget.js";
+import { marked } from 'marked';
+import SpacedUpdate from "../../services/spaced_update.js";
+import server from "../../services/server.js";
+import toastService from "../../services/toast.js";
+
+export default class MarkdownTypeWidget extends TypeWidget {
+    static getType() { 
+        return "markdown"; 
+    }
+    
+    constructor() {
+        super();
+        
+        this.spacedUpdate = new SpacedUpdate(async () => {
+            await this.saveContent();
+        }, 1000);
+        
+        this.isEditing = false;
+        this.lastContent = '';
+    }
+    
+    doRender() {
+        this.$widget = $(`
+            <div class="markdown-type-widget">
+                <div class="markdown-toolbar">
+                    <button class="btn btn-sm toggle-edit">
+                        <span class="bx bx-edit"></span> Edit
+                    </button>
+                    <button class="btn btn-sm toggle-preview">
+                        <span class="bx bx-show"></span> Preview
+                    </button>
+                    <button class="btn btn-sm export-html">
+                        <span class="bx bx-export"></span> Export HTML
+                    </button>
+                </div>
+                
+                <div class="markdown-container">
+                    <div class="markdown-editor">
+                        <textarea class="markdown-input"></textarea>
+                    </div>
+                    <div class="markdown-preview"></div>
+                </div>
+            </div>
+        `);
+        
+        this.setupStyles();
+        this.bindEvents();
+    }
+    
+    setupStyles() {
+        this.cssBlock(`
+            .markdown-type-widget {
+                height: 100%;
+                display: flex;
+                flex-direction: column;
+            }
+            
+            .markdown-toolbar {
+                padding: 10px;
+                border-bottom: 1px solid var(--main-border-color);
+                display: flex;
+                gap: 10px;
+            }
+            
+            .markdown-container {
+                flex: 1;
+                display: flex;
+                overflow: hidden;
+            }
+            
+            .markdown-editor,
+            .markdown-preview {
+                flex: 1;
+                padding: 20px;
+                overflow-y: auto;
+            }
+            
+            .markdown-editor {
+                border-right: 1px solid var(--main-border-color);
+            }
+            
+            .markdown-input {
+                width: 100%;
+                height: 100%;
+                border: none;
+                outline: none;
+                font-family: 'Monaco', 'Courier New', monospace;
+                font-size: 14px;
+                line-height: 1.6;
+                resize: none;
+                background: var(--main-background-color);
+                color: var(--main-text-color);
+            }
+            
+            .markdown-preview {
+                background: var(--main-background-color);
+            }
+            
+            .markdown-preview h1 { 
+                font-size: 2em; 
+                margin: 0.67em 0;
+                border-bottom: 1px solid var(--main-border-color);
+                padding-bottom: 0.3em;
+            }
+            
+            .markdown-preview h2 {
+                font-size: 1.5em;
+                margin: 0.75em 0;
+                border-bottom: 1px solid var(--main-border-color);
+                padding-bottom: 0.3em;
+            }
+            
+            .markdown-preview code {
+                background: var(--code-background-color);
+                padding: 2px 4px;
+                border-radius: 3px;
+                font-family: 'Monaco', 'Courier New', monospace;
+            }
+            
+            .markdown-preview pre {
+                background: var(--code-background-color);
+                padding: 16px;
+                border-radius: 6px;
+                overflow-x: auto;
+            }
+            
+            .markdown-preview blockquote {
+                border-left: 4px solid var(--primary-color);
+                margin: 0;
+                padding-left: 16px;
+                color: var(--muted-text-color);
+            }
+            
+            .markdown-preview table {
+                border-collapse: collapse;
+                width: 100%;
+                margin: 1em 0;
+            }
+            
+            .markdown-preview th,
+            .markdown-preview td {
+                border: 1px solid var(--main-border-color);
+                padding: 8px 12px;
+            }
+            
+            .markdown-preview th {
+                background: var(--button-background-color);
+                font-weight: 600;
+            }
+            
+            .markdown-type-widget.preview-only .markdown-editor {
+                display: none;
+            }
+            
+            .markdown-type-widget.preview-only .markdown-preview {
+                border-right: none;
+            }
+            
+            .markdown-type-widget.edit-only .markdown-preview {
+                display: none;
+            }
+            
+            .markdown-type-widget.edit-only .markdown-editor {
+                border-right: none;
+            }
+        `);
+    }
+    
+    bindEvents() {
+        const $input = this.$widget.find('.markdown-input');
+        const $preview = this.$widget.find('.markdown-preview');
+        
+        // Text input handler
+        $input.on('input', () => {
+            const content = $input.val() as string;
+            this.updatePreview(content);
+            this.spacedUpdate.scheduleUpdate();
+        });
+        
+        // Toolbar buttons
+        this.$widget.find('.toggle-edit').on('click', () => {
+            this.$widget.toggleClass('edit-only');
+            this.$widget.removeClass('preview-only');
+        });
+        
+        this.$widget.find('.toggle-preview').on('click', () => {
+            this.$widget.toggleClass('preview-only');
+            this.$widget.removeClass('edit-only');
+        });
+        
+        this.$widget.find('.export-html').on('click', () => {
+            this.exportAsHtml();
+        });
+        
+        // Keyboard shortcuts
+        $input.on('keydown', (e) => {
+            this.handleKeyboard(e);
+        });
+    }
+    
+    handleKeyboard(e: JQuery.KeyDownEvent) {
+        const $input = $(e.target);
+        
+        // Tab handling for lists
+        if (e.key === 'Tab') {
+            e.preventDefault();
+            const start = ($input[0] as HTMLTextAreaElement).selectionStart;
+            const end = ($input[0] as HTMLTextAreaElement).selectionEnd;
+            const value = $input.val() as string;
+            
+            $input.val(value.substring(0, start) + '    ' + value.substring(end));
+            ($input[0] as HTMLTextAreaElement).selectionStart = 
+            ($input[0] as HTMLTextAreaElement).selectionEnd = start + 4;
+        }
+        
+        // Bold shortcut (Ctrl+B)
+        if (e.ctrlKey && e.key === 'b') {
+            e.preventDefault();
+            this.wrapSelection('**', '**');
+        }
+        
+        // Italic shortcut (Ctrl+I)
+        if (e.ctrlKey && e.key === 'i') {
+            e.preventDefault();
+            this.wrapSelection('*', '*');
+        }
+        
+        // Link shortcut (Ctrl+K)
+        if (e.ctrlKey && e.key === 'k') {
+            e.preventDefault();
+            this.insertLink();
+        }
+    }
+    
+    wrapSelection(before: string, after: string) {
+        const $input = this.$widget.find('.markdown-input');
+        const textarea = $input[0] as HTMLTextAreaElement;
+        const start = textarea.selectionStart;
+        const end = textarea.selectionEnd;
+        const value = $input.val() as string;
+        const selection = value.substring(start, end);
+        
+        const newValue = value.substring(0, start) + 
+                        before + selection + after + 
+                        value.substring(end);
+        
+        $input.val(newValue);
+        textarea.selectionStart = start + before.length;
+        textarea.selectionEnd = end + before.length;
+        
+        $input.trigger('input');
+    }
+    
+    async insertLink() {
+        const url = prompt('Enter URL:');
+        if (url) {
+            const $input = this.$widget.find('.markdown-input');
+            const textarea = $input[0] as HTMLTextAreaElement;
+            const start = textarea.selectionStart;
+            const end = textarea.selectionEnd;
+            const value = $input.val() as string;
+            const selection = value.substring(start, end) || 'link text';
+            
+            const link = `[${selection}](${url})`;
+            const newValue = value.substring(0, start) + link + value.substring(end);
+            
+            $input.val(newValue);
+            $input.trigger('input');
+        }
+    }
+    
+    updatePreview(content: string) {
+        // Configure marked options
+        marked.setOptions({
+            breaks: true,
+            gfm: true,
+            tables: true,
+            sanitize: false,
+            smartLists: true,
+            smartypants: true,
+            highlight: (code, lang) => {
+                // Add syntax highlighting if available
+                if (window.hljs && lang && window.hljs.getLanguage(lang)) {
+                    return window.hljs.highlight(code, { language: lang }).value;
+                }
+                return code;
+            }
+        });
+        
+        // Convert markdown to HTML
+        const html = marked.parse(content);
+        
+        // Update preview
+        this.$widget.find('.markdown-preview').html(html);
+        
+        // Process internal links
+        this.processInternalLinks();
+    }
+    
+    processInternalLinks() {
+        this.$widget.find('.markdown-preview a').each((_, el) => {
+            const $link = $(el);
+            const href = $link.attr('href');
+            
+            // Check for internal note links
+            if (href?.startsWith('#')) {
+                const noteId = href.substring(1);
+                $link.on('click', async (e) => {
+                    e.preventDefault();
+                    const note = await froca.getNote(noteId);
+                    if (note) {
+                        appContext.tabManager.getActiveContext()?.setNote(noteId);
+                    }
+                });
+            }
+        });
+    }
+    
+    async doRefresh(note) {
+        this.note = note;
+        const content = await this.getContent();
+        
+        this.$widget.find('.markdown-input').val(content);
+        this.updatePreview(content);
+        
+        this.lastContent = content;
+    }
+    
+    async getContent() {
+        return await this.note.getContent();
+    }
+    
+    async saveContent() {
+        const content = this.$widget.find('.markdown-input').val() as string;
+        
+        if (content === this.lastContent) {
+            return; // No changes
+        }
+        
+        try {
+            await server.put(`notes/${this.note.noteId}/content`, {
+                content: content
+            });
+            
+            this.lastContent = content;
+            
+        } catch (error) {
+            toastService.showError('Failed to save markdown content');
+            console.error('Save error:', error);
+        }
+    }
+    
+    async exportAsHtml() {
+        const content = this.$widget.find('.markdown-input').val() as string;
+        const html = marked.parse(content);
+        
+        // Create full HTML document
+        const fullHtml = `
+            <!DOCTYPE html>
+            <html>
+            <head>
+                <meta charset="UTF-8">
+                <title>${this.note.title}</title>
+                <style>
+                    body {
+                        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
+                        line-height: 1.6;
+                        max-width: 800px;
+                        margin: 0 auto;
+                        padding: 20px;
+                    }
+                    h1, h2 {
+                        border-bottom: 1px solid #eee;
+                        padding-bottom: 0.3em;
+                    }
+                    code {
+                        background: #f4f4f4;
+                        padding: 2px 4px;
+                        border-radius: 3px;
+                    }
+                    pre {
+                        background: #f4f4f4;
+                        padding: 16px;
+                        border-radius: 6px;
+                        overflow-x: auto;
+                    }
+                    blockquote {
+                        border-left: 4px solid #ddd;
+                        margin: 0;
+                        padding-left: 16px;
+                        color: #666;
+                    }
+                    table {
+                        border-collapse: collapse;
+                        width: 100%;
+                    }
+                    th, td {
+                        border: 1px solid #ddd;
+                        padding: 8px 12px;
+                    }
+                    th {
+                        background: #f4f4f4;
+                    }
+                </style>
+            </head>
+            <body>
+                ${html}
+            </body>
+            </html>
+        `;
+        
+        // Download file
+        const blob = new Blob([fullHtml], { type: 'text/html' });
+        const url = URL.createObjectURL(blob);
+        const a = document.createElement('a');
+        a.href = url;
+        a.download = `${this.note.title}.html`;
+        a.click();
+        URL.revokeObjectURL(url);
+        
+        toastService.showMessage('Markdown exported as HTML');
+    }
+    
+    cleanup() {
+        this.$widget.find('.markdown-input').off();
+        this.$widget.find('button').off();
+        this.spacedUpdate = null;
+    }
+}
+```
+
+### Step 3: Register the Widget
+
+```typescript
+// apps/client/src/services/note_type_registry.ts
+
+import MarkdownTypeWidget from "../widgets/type_widgets/markdown.js";
+
+export function registerNoteTypes() {
+    // ... existing registrations
+    
+    noteTypeService.register(MarkdownTypeWidget);
+}
+```
+
+### Step 4: Add Backend Support
+
+```typescript
+// apps/server/src/services/notes.ts
+
+// Add to note creation
+export async function createNote(params: NoteParams) {
+    // ... existing code
+    
+    if (params.type === 'markdown') {
+        // Set appropriate MIME type
+        params.mime = 'text/markdown';
+        
+        // Initialize with template if needed
+        if (!params.content) {
+            params.content = '# New Markdown Note\n\nStart writing...';
+        }
+    }
+    
+    // ... rest of creation logic
+}
+
+// Add import support
+export async function importMarkdown(filePath: string, parentNoteId: string) {
+    const fs = require('fs').promises;
+    const content = await fs.readFile(filePath, 'utf8');
+    
+    const note = await createNote({
+        parentNoteId,
+        title: path.basename(filePath, '.md'),
+        content,
+        type: 'markdown',
+        mime: 'text/markdown'
+    });
+    
+    return note;
+}
+
+// Add export support
+export async function exportMarkdown(noteId: string, targetPath: string) {
+    const note = await becca.getNote(noteId);
+    const content = await note.getContent();
+    
+    const fs = require('fs').promises;
+    await fs.writeFile(targetPath, content, 'utf8');
+}
+```
+
+## Complete Example: Markdown Preview Note Type
+
+Here's a full implementation of a markdown note type with live preview:
+
+### Widget Implementation
+
+```typescript
+// apps/client/src/widgets/type_widgets/markdown_preview.ts
+
+import TypeWidget from "./type_widget.js";
+import SpacedUpdate from "../../services/spaced_update.js";
+import server from "../../services/server.js";
+import toastService from "../../services/toast.js";
+import appContext from "../../components/app_context.js";
+import froca from "../../services/froca.js";
+import linkService from "../../services/link.js";
+import utils from "../../services/utils.js";
+
+interface MarkdownConfig {
+    splitView: boolean;
+    syncScroll: boolean;
+    showLineNumbers: boolean;
+    theme: 'light' | 'dark' | 'auto';
+}
+
+export default class MarkdownPreviewWidget extends TypeWidget {
+    static getType() { 
+        return "markdownPreview"; 
+    }
+    
+    private config: MarkdownConfig;
+    private editor: any; // CodeMirror instance
+    private spacedUpdate: SpacedUpdate;
+    private isRendering: boolean = false;
+    
+    constructor() {
+        super();
+        
+        this.config = {
+            splitView: true,
+            syncScroll: true,
+            showLineNumbers: true,
+            theme: 'auto'
+        };
+        
+        this.spacedUpdate = new SpacedUpdate(async () => {
+            await this.saveContent();
+        }, 1000);
+    }
+    
+    doRender() {
+        this.$widget = $(`
+            <div class="markdown-preview-widget">
+                <div class="markdown-header">
+                    <div class="markdown-toolbar">
+                        <div class="btn-group">
+                            <button class="btn btn-sm" data-action="bold" title="Bold (Ctrl+B)">
+                                <span class="bx bx-bold"></span>
+                            </button>
+                            <button class="btn btn-sm" data-action="italic" title="Italic (Ctrl+I)">
+                                <span class="bx bx-italic"></span>
+                            </button>
+                            <button class="btn btn-sm" data-action="strikethrough" title="Strikethrough">
+                                <span class="bx bx-strikethrough"></span>
+                            </button>
+                        </div>
+                        
+                        <div class="btn-group">
+                            <button class="btn btn-sm" data-action="h1" title="Heading 1">
+                                H1
+                            </button>
+                            <button class="btn btn-sm" data-action="h2" title="Heading 2">
+                                H2
+                            </button>
+                            <button class="btn btn-sm" data-action="h3" title="Heading 3">
+                                H3
+                            </button>
+                        </div>
+                        
+                        <div class="btn-group">
+                            <button class="btn btn-sm" data-action="ul" title="Unordered List">
+                                <span class="bx bx-list-ul"></span>
+                            </button>
+                            <button class="btn btn-sm" data-action="ol" title="Ordered List">
+                                <span class="bx bx-list-ol"></span>
+                            </button>
+                            <button class="btn btn-sm" data-action="task" title="Task List">
+                                <span class="bx bx-checkbox"></span>
+                            </button>
+                        </div>
+                        
+                        <div class="btn-group">
+                            <button class="btn btn-sm" data-action="quote" title="Quote">
+                                <span class="bx bx-message-square-dots"></span>
+                            </button>
+                            <button class="btn btn-sm" data-action="code" title="Code">
+                                <span class="bx bx-code"></span>
+                            </button>
+                            <button class="btn btn-sm" data-action="codeblock" title="Code Block">
+                                <span class="bx bx-code-block"></span>
+                            </button>
+                        </div>
+                        
+                        <div class="btn-group">
+                            <button class="btn btn-sm" data-action="link" title="Link (Ctrl+K)">
+                                <span class="bx bx-link"></span>
+                            </button>
+                            <button class="btn btn-sm" data-action="image" title="Image">
+                                <span class="bx bx-image"></span>
+                            </button>
+                            <button class="btn btn-sm" data-action="table" title="Table">
+                                <span class="bx bx-table"></span>
+                            </button>
+                        </div>
+                        
+                        <div class="btn-group">
+                            <button class="btn btn-sm" data-action="hr" title="Horizontal Rule">
+                                —
+                            </button>
+                        </div>
+                    </div>
+                    
+                    <div class="markdown-view-controls">
+                        <button class="btn btn-sm" data-view="edit" title="Edit Only">
+                            <span class="bx bx-edit"></span>
+                        </button>
+                        <button class="btn btn-sm active" data-view="split" title="Split View">
+                            <span class="bx bx-columns"></span>
+                        </button>
+                        <button class="btn btn-sm" data-view="preview" title="Preview Only">
+                            <span class="bx bx-show"></span>
+                        </button>
+                    </div>
+                </div>
+                
+                <div class="markdown-content">
+                    <div class="markdown-editor-container">
+                        <textarea class="markdown-editor"></textarea>
+                    </div>
+                    <div class="markdown-preview-container">
+                        <div class="markdown-preview"></div>
+                    </div>
+                </div>
+                
+                <div class="markdown-footer">
+                    <div class="markdown-stats">
+                        <span class="stat-item">
+                            <span class="stat-label">Words:</span>
+                            <span class="stat-value" data-stat="words">0</span>
+                        </span>
+                        <span class="stat-item">
+                            <span class="stat-label">Characters:</span>
+                            <span class="stat-value" data-stat="chars">0</span>
+                        </span>
+                        <span class="stat-item">
+                            <span class="stat-label">Lines:</span>
+                            <span class="stat-value" data-stat="lines">0</span>
+                        </span>
+                    </div>
+                    
+                    <div class="markdown-actions">
+                        <button class="btn btn-sm" data-action="export-html">
+                            Export HTML
+                        </button>
+                        <button class="btn btn-sm" data-action="export-pdf">
+                            Export PDF
+                        </button>
+                    </div>
+                </div>
+            </div>
+        `);
+        
+        this.setupStyles();
+        this.initializeEditor();
+        this.bindEvents();
+    }
+    
+    setupStyles() {
+        this.cssBlock(`
+            .markdown-preview-widget {
+                height: 100%;
+                display: flex;
+                flex-direction: column;
+                background: var(--main-background-color);
+            }
+            
+            .markdown-header {
+                border-bottom: 1px solid var(--main-border-color);
+                padding: 8px;
+                display: flex;
+                justify-content: space-between;
+                align-items: center;
+                flex-wrap: wrap;
+                gap: 8px;
+            }
+            
+            .markdown-toolbar {
+                display: flex;
+                gap: 12px;
+                flex-wrap: wrap;
+            }
+            
+            .markdown-toolbar .btn-group {
+                display: flex;
+                gap: 2px;
+            }
+            
+            .markdown-toolbar .btn {
+                padding: 4px 8px;
+                min-width: 32px;
+            }
+            
+            .markdown-view-controls {
+                display: flex;
+                gap: 2px;
+            }
+            
+            .markdown-content {
+                flex: 1;
+                display: flex;
+                overflow: hidden;
+            }
+            
+            .markdown-editor-container,
+            .markdown-preview-container {
+                flex: 1;
+                overflow: auto;
+            }
+            
+            .markdown-editor-container {
+                border-right: 1px solid var(--main-border-color);
+            }
+            
+            .CodeMirror {
+                height: 100%;
+                font-family: 'Monaco', 'Courier New', monospace;
+                font-size: 14px;
+            }
+            
+            .markdown-preview {
+                padding: 20px;
+                max-width: 900px;
+                margin: 0 auto;
+            }
+            
+            /* Markdown preview styles */
+            .markdown-preview h1 {
+                font-size: 2.5em;
+                margin: 0.67em 0;
+                padding-bottom: 0.3em;
+                border-bottom: 2px solid var(--main-border-color);
+            }
+            
+            .markdown-preview h2 {
+                font-size: 2em;
+                margin: 0.75em 0;
+                padding-bottom: 0.3em;
+                border-bottom: 1px solid var(--main-border-color);
+            }
+            
+            .markdown-preview h3 {
+                font-size: 1.5em;
+                margin: 0.83em 0;
+            }
+            
+            .markdown-preview h4 {
+                font-size: 1.2em;
+                margin: 1em 0;
+            }
+            
+            .markdown-preview p {
+                margin: 1em 0;
+                line-height: 1.7;
+            }
+            
+            .markdown-preview code {
+                background: var(--code-background-color);
+                padding: 2px 6px;
+                border-radius: 3px;
+                font-family: 'Monaco', 'Courier New', monospace;
+                font-size: 0.9em;
+            }
+            
+            .markdown-preview pre {
+                background: var(--code-background-color);
+                padding: 16px;
+                border-radius: 6px;
+                overflow-x: auto;
+                line-height: 1.45;
+            }
+            
+            .markdown-preview pre code {
+                background: none;
+                padding: 0;
+            }
+            
+            .markdown-preview blockquote {
+                border-left: 4px solid var(--primary-color);
+                margin: 1em 0;
+                padding: 0.5em 1em;
+                color: var(--muted-text-color);
+                background: var(--button-background-color);
+            }
+            
+            .markdown-preview ul,
+            .markdown-preview ol {
+                margin: 1em 0;
+                padding-left: 2em;
+            }
+            
+            .markdown-preview li {
+                margin: 0.5em 0;
+            }
+            
+            .markdown-preview table {
+                border-collapse: collapse;
+                width: 100%;
+                margin: 1em 0;
+            }
+            
+            .markdown-preview th,
+            .markdown-preview td {
+                border: 1px solid var(--main-border-color);
+                padding: 8px 12px;
+                text-align: left;
+            }
+            
+            .markdown-preview th {
+                background: var(--button-background-color);
+                font-weight: 600;
+            }
+            
+            .markdown-preview img {
+                max-width: 100%;
+                height: auto;
+                display: block;
+                margin: 1em auto;
+            }
+            
+            .markdown-preview a {
+                color: var(--link-color);
+                text-decoration: none;
+            }
+            
+            .markdown-preview a:hover {
+                text-decoration: underline;
+            }
+            
+            .markdown-preview hr {
+                border: none;
+                border-top: 2px solid var(--main-border-color);
+                margin: 2em 0;
+            }
+            
+            .markdown-preview .task-list-item {
+                list-style: none;
+                margin-left: -1.5em;
+            }
+            
+            .markdown-preview .task-list-item input[type="checkbox"] {
+                margin-right: 0.5em;
+            }
+            
+            .markdown-footer {
+                border-top: 1px solid var(--main-border-color);
+                padding: 8px 16px;
+                display: flex;
+                justify-content: space-between;
+                align-items: center;
+            }
+            
+            .markdown-stats {
+                display: flex;
+                gap: 20px;
+                font-size: 0.9em;
+                color: var(--muted-text-color);
+            }
+            
+            .stat-label {
+                margin-right: 4px;
+            }
+            
+            .stat-value {
+                font-weight: 600;
+                color: var(--main-text-color);
+            }
+            
+            /* View modes */
+            .markdown-preview-widget.edit-mode .markdown-preview-container {
+                display: none;
+            }
+            
+            .markdown-preview-widget.edit-mode .markdown-editor-container {
+                border-right: none;
+            }
+            
+            .markdown-preview-widget.preview-mode .markdown-editor-container {
+                display: none;
+            }
+            
+            /* Syntax highlighting */
+            .hljs {
+                background: var(--code-background-color);
+                color: var(--main-text-color);
+            }
+        `);
+    }
+    
+    initializeEditor() {
+        // Initialize CodeMirror
+        const textarea = this.$widget.find('.markdown-editor')[0];
+        
+        this.editor = CodeMirror.fromTextArea(textarea, {
+            mode: 'markdown',
+            lineNumbers: this.config.showLineNumbers,
+            lineWrapping: true,
+            theme: this.getEditorTheme(),
+            extraKeys: {
+                'Ctrl-B': () => this.insertFormatting('bold'),
+                'Ctrl-I': () => this.insertFormatting('italic'),
+                'Ctrl-K': () => this.insertFormatting('link'),
+                'Tab': 'indentMore',
+                'Shift-Tab': 'indentLess'
+            }
+        });
+        
+        // Handle editor changes
+        this.editor.on('change', () => {
+            this.handleContentChange();
+        });
+        
+        // Sync scroll if enabled
+        if (this.config.syncScroll) {
+            this.setupScrollSync();
+        }
+    }
+    
+    getEditorTheme() {
+        if (this.config.theme === 'auto') {
+            const isDark = $('body').hasClass('theme-dark');
+            return isDark ? 'monokai' : 'default';
+        }
+        return this.config.theme === 'dark' ? 'monokai' : 'default';
+    }
+    
+    setupScrollSync() {
+        const editorScroll = this.$widget.find('.CodeMirror-scroll');
+        const previewScroll = this.$widget.find('.markdown-preview-container');
+        
+        let syncingScroll = false;
+        
+        editorScroll.on('scroll', () => {
+            if (syncingScroll) return;
+            syncingScroll = true;
+            
+            const percentage = editorScroll.scrollTop() / 
+                             (editorScroll[0].scrollHeight - editorScroll.height());
+            
+            previewScroll.scrollTop(
+                percentage * (previewScroll[0].scrollHeight - previewScroll.height())
+            );
+            
+            setTimeout(() => syncingScroll = false, 100);
+        });
+        
+        previewScroll.on('scroll', () => {
+            if (syncingScroll) return;
+            syncingScroll = true;
+            
+            const percentage = previewScroll.scrollTop() / 
+                             (previewScroll[0].scrollHeight - previewScroll.height());
+            
+            editorScroll.scrollTop(
+                percentage * (editorScroll[0].scrollHeight - editorScroll.height())
+            );
+            
+            setTimeout(() => syncingScroll = false, 100);
+        });
+    }
+    
+    bindEvents() {
+        // Toolbar buttons
+        this.$widget.on('click', '[data-action]', (e) => {
+            const action = $(e.currentTarget).attr('data-action');
+            this.handleAction(action!);
+        });
+        
+        // View mode buttons
+        this.$widget.on('click', '[data-view]', (e) => {
+            const $btn = $(e.currentTarget);
+            const view = $btn.attr('data-view');
+            
+            this.$widget.find('[data-view]').removeClass('active');
+            $btn.addClass('active');
+            
+            this.$widget.removeClass('edit-mode preview-mode');
+            if (view === 'edit') {
+                this.$widget.addClass('edit-mode');
+            } else if (view === 'preview') {
+                this.$widget.addClass('preview-mode');
+            }
+        });
+    }
+    
+    handleContentChange() {
+        const content = this.editor.getValue();
+        
+        // Update preview
+        this.renderPreview(content);
+        
+        // Update statistics
+        this.updateStatistics(content);
+        
+        // Schedule save
+        this.spacedUpdate.scheduleUpdate();
+    }
+    
+    renderPreview(content: string) {
+        if (this.isRendering) return;
+        this.isRendering = true;
+        
+        // Use marked.js for markdown rendering
+        const marked = window.marked;
+        
+        marked.setOptions({
+            breaks: true,
+            gfm: true,
+            tables: true,
+            smartLists: true,
+            smartypants: true,
+            highlight: (code, lang) => {
+                if (window.hljs && lang && window.hljs.getLanguage(lang)) {
+                    try {
+                        return window.hljs.highlight(code, { language: lang }).value;
+                    } catch (e) {
+                        console.error('Highlight error:', e);
+                    }
+                }
+                return code;
+            }
+        });
+        
+        try {
+            const html = marked.parse(content);
+            this.$widget.find('.markdown-preview').html(html);
+            
+            // Process internal links
+            this.processLinks();
+            
+            // Process checkboxes
+            this.processCheckboxes();
+            
+        } catch (error) {
+            console.error('Markdown render error:', error);
+        }
+        
+        this.isRendering = false;
+    }
+    
+    processLinks() {
+        this.$widget.find('.markdown-preview a').each((_, el) => {
+            const $link = $(el);
+            const href = $link.attr('href');
+            
+            if (!href) return;
+            
+            // Internal note links (#noteId)
+            if (href.startsWith('#')) {
+                const noteId = href.substring(1);
+                $link.on('click', async (e) => {
+                    e.preventDefault();
+                    await appContext.tabManager.getActiveContext()?.setNote(noteId);
+                });
+            }
+            // External links
+            else if (href.startsWith('http')) {
+                $link.attr('target', '_blank');
+                $link.attr('rel', 'noopener noreferrer');
+            }
+        });
+    }
+    
+    processCheckboxes() {
+        this.$widget.find('.markdown-preview input[type="checkbox"]').each((i, el) => {
+            const $checkbox = $(el);
+            const $li = $checkbox.closest('li');
+            
+            $li.addClass('task-list-item');
+            
+            $checkbox.on('change', () => {
+                const isChecked = $checkbox.is(':checked');
+                this.updateTaskInEditor(i, isChecked);
+            });
+        });
+    }
+    
+    updateTaskInEditor(index: number, checked: boolean) {
+        const content = this.editor.getValue();
+        const lines = content.split('\n');
+        
+        let taskCount = 0;
+        for (let i = 0; i < lines.length; i++) {
+            if (lines[i].match(/^\s*[-*+]\s+\[[ x]\]/)) {
+                if (taskCount === index) {
+                    lines[i] = lines[i].replace(
+                        /\[[ x]\]/,
+                        checked ? '[x]' : '[ ]'
+                    );
+                    break;
+                }
+                taskCount++;
+            }
+        }
+        
+        this.editor.setValue(lines.join('\n'));
+    }
+    
+    updateStatistics(content: string) {
+        const words = content.match(/\b\w+\b/g)?.length || 0;
+        const chars = content.length;
+        const lines = content.split('\n').length;
+        
+        this.$widget.find('[data-stat="words"]').text(words);
+        this.$widget.find('[data-stat="chars"]').text(chars);
+        this.$widget.find('[data-stat="lines"]').text(lines);
+    }
+    
+    handleAction(action: string) {
+        switch (action) {
+            case 'bold':
+            case 'italic':
+            case 'strikethrough':
+            case 'h1':
+            case 'h2':
+            case 'h3':
+            case 'ul':
+            case 'ol':
+            case 'task':
+            case 'quote':
+            case 'code':
+            case 'codeblock':
+            case 'link':
+            case 'image':
+            case 'table':
+            case 'hr':
+                this.insertFormatting(action);
+                break;
+                
+            case 'export-html':
+                this.exportAsHtml();
+                break;
+                
+            case 'export-pdf':
+                this.exportAsPdf();
+                break;
+        }
+    }
+    
+    insertFormatting(type: string) {
+        const cursor = this.editor.getCursor();
+        const selection = this.editor.getSelection();
+        
+        const formats: Record<string, any> = {
+            bold: { wrap: '**' },
+            italic: { wrap: '*' },
+            strikethrough: { wrap: '~~' },
+            h1: { prefix: '# ' },
+            h2: { prefix: '## ' },
+            h3: { prefix: '### ' },
+            ul: { prefix: '- ' },
+            ol: { prefix: '1. ' },
+            task: { prefix: '- [ ] ' },
+            quote: { prefix: '> ' },
+            code: { wrap: '`' },
+            codeblock: { 
+                before: '```\n',
+                after: '\n```'
+            },
+            link: {
+                template: '[${text}](${url})'
+            },
+            image: {
+                template: '![${alt}](${url})'
+            },
+            table: {
+                template: '| Header 1 | Header 2 |\n|----------|----------|\n| Cell 1   | Cell 2   |'
+            },
+            hr: {
+                insert: '\n---\n'
+            }
+        };
+        
+        const format = formats[type];
+        if (!format) return;
+        
+        if (format.wrap) {
+            const wrapped = format.wrap + (selection || 'text') + format.wrap;
+            this.editor.replaceSelection(wrapped);
+        } else if (format.prefix) {
+            this.editor.setCursor({ line: cursor.line, ch: 0 });
+            this.editor.replaceRange(format.prefix, cursor);
+        } else if (format.before && format.after) {
+            const text = format.before + (selection || '') + format.after;
+            this.editor.replaceSelection(text);
+        } else if (format.template) {
+            // Handle templates with placeholders
+            if (type === 'link') {
+                const url = prompt('Enter URL:') || '';
+                const text = selection || 'link text';
+                this.editor.replaceSelection(`[${text}](${url})`);
+            } else if (type === 'image') {
+                const url = prompt('Enter image URL:') || '';
+                const alt = selection || 'alt text';
+                this.editor.replaceSelection(`![${alt}](${url})`);
+            } else {
+                this.editor.replaceSelection(format.template);
+            }
+        } else if (format.insert) {
+            this.editor.replaceSelection(format.insert);
+        }
+        
+        this.editor.focus();
+    }
+    
+    async doRefresh(note) {
+        this.note = note;
+        
+        const content = await note.getContent();
+        this.editor.setValue(content);
+        
+        this.renderPreview(content);
+        this.updateStatistics(content);
+    }
+    
+    async saveContent() {
+        if (!this.note) return;
+        
+        const content = this.editor.getValue();
+        
+        try {
+            await server.put(`notes/${this.note.noteId}/content`, {
+                content: content
+            });
+        } catch (error) {
+            console.error('Save error:', error);
+            toastService.showError('Failed to save markdown content');
+        }
+    }
+    
+    async exportAsHtml() {
+        const content = this.editor.getValue();
+        const html = marked.parse(content);
+        
+        const fullHtml = `
+            <!DOCTYPE html>
+            <html>
+            <head>
+                <meta charset="UTF-8">
+                <title>${this.note.title}</title>
+                <style>
+                    /* Include comprehensive styles */
+                    ${this.getExportStyles()}
+                </style>
+            </head>
+            <body>
+                <div class="markdown-body">
+                    ${html}
+                </div>
+            </body>
+            </html>
+        `;
+        
+        const blob = new Blob([fullHtml], { type: 'text/html' });
+        const url = URL.createObjectURL(blob);
+        const a = document.createElement('a');
+        a.href = url;
+        a.download = `${this.note.title}.html`;
+        a.click();
+        URL.revokeObjectURL(url);
+        
+        toastService.showMessage('Exported as HTML');
+    }
+    
+    async exportAsPdf() {
+        // This would require a backend service or library like jsPDF
+        toastService.showMessage('PDF export not yet implemented');
+    }
+    
+    getExportStyles() {
+        return `
+            body {
+                font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+                line-height: 1.6;
+                color: #333;
+                max-width: 900px;
+                margin: 0 auto;
+                padding: 20px;
+            }
+            /* ... additional export styles ... */
+        `;
+    }
+    
+    cleanup() {
+        if (this.editor) {
+            this.editor.toTextArea();
+        }
+        this.$widget.off('click');
+        this.spacedUpdate = null;
+    }
+}
+```
+
+## Advanced Features
+
+### Custom Import/Export
+
+```typescript
+// apps/server/src/services/import_export/markdown_handler.ts
+
+import fs from 'fs/promises';
+import path from 'path';
+import matter from 'gray-matter';
+
+export class MarkdownImportExport {
+    async importMarkdownFile(filePath: string, parentNoteId: string) {
+        const content = await fs.readFile(filePath, 'utf8');
+        
+        // Parse frontmatter if present
+        const { data: metadata, content: body } = matter(content);
+        
+        // Create note
+        const note = await api.createNote(
+            parentNoteId,
+            metadata.title || path.basename(filePath, '.md'),
+            body
+        );
+        
+        // Set note type
+        note.type = 'markdown';
+        note.mime = 'text/markdown';
+        
+        // Add metadata as attributes
+        if (metadata.tags) {
+            for (const tag of metadata.tags) {
+                await note.addLabel('tag', tag);
+            }
+        }
+        
+        if (metadata.date) {
+            await note.addLabel('created', metadata.date);
+        }
+        
+        await note.save();
+        return note;
+    }
+    
+    async exportMarkdownFile(noteId: string, targetDir: string) {
+        const note = await api.getNote(noteId);
+        const content = await note.getContent();
+        
+        // Build frontmatter
+        const metadata: any = {
+            title: note.title,
+            date: note.dateCreated,
+            modified: note.dateModified
+        };
+        
+        // Add tags
+        const tags = note.getLabels()
+            .filter(l => l.name === 'tag')
+            .map(l => l.value);
+        
+        if (tags.length > 0) {
+            metadata.tags = tags;
+        }
+        
+        // Create markdown with frontmatter
+        const markdown = matter.stringify(content, metadata);
+        
+        // Write file
+        const fileName = `${note.title.replace(/[^a-z0-9]/gi, '_')}.md`;
+        const filePath = path.join(targetDir, fileName);
+        
+        await fs.writeFile(filePath, markdown, 'utf8');
+        
+        return filePath;
+    }
+}
+```
+
+### Custom Actions and Commands
+
+```typescript
+// Add custom actions for the note type
+class MarkdownActions {
+    static registerActions() {
+        // Register command palette actions
+        api.addCommand({
+            name: 'markdown:togglePreview',
+            label: 'Markdown: Toggle Preview',
+            action: async () => {
+                const widget = api.getActiveWidget();
+                if (widget instanceof MarkdownPreviewWidget) {
+                    widget.togglePreview();
+                }
+            }
+        });
+        
+        // Register context menu items
+        api.addContextMenuItem({
+            noteType: 'markdown',
+            label: 'Convert to HTML',
+            action: async (note) => {
+                await this.convertToHtml(note);
+            }
+        });
+    }
+    
+    static async convertToHtml(note) {
+        const content = await note.getContent();
+        const html = marked.parse(content);
+        
+        // Create new HTML note
+        const htmlNote = await api.createNote(
+            note.getParentNoteIds()[0],
+            `${note.title} (HTML)`,
+            html
+        );
+        
+        htmlNote.type = 'text';
+        htmlNote.mime = 'text/html';
+        await htmlNote.save();
+        
+        toastService.showMessage('Converted to HTML note');
+    }
+}
+```
+
+## Testing Your Note Type
+
+```typescript
+// apps/client/test/widgets/markdown_preview.test.ts
+
+import MarkdownPreviewWidget from '../../src/widgets/type_widgets/markdown_preview';
+
+describe('MarkdownPreviewWidget', () => {
+    let widget: MarkdownPreviewWidget;
+    let mockNote: any;
+    
+    beforeEach(() => {
+        widget = new MarkdownPreviewWidget();
+        mockNote = {
+            noteId: 'test123',
+            title: 'Test Note',
+            type: 'markdown',
+            getContent: jest.fn().mockResolvedValue('# Test\n\nContent'),
+            setContent: jest.fn()
+        };
+    });
+    
+    test('renders markdown correctly', async () => {
+        widget.doRender();
+        await widget.doRefresh(mockNote);
+        
+        const preview = widget.$widget.find('.markdown-preview').html();
+        expect(preview).toContain('<h1>Test</h1>');
+        expect(preview).toContain('<p>Content</p>');
+    });
+    
+    test('handles formatting shortcuts', () => {
+        widget.doRender();
+        widget.initializeEditor();
+        
+        // Test bold formatting
+        widget.editor.setValue('test');
+        widget.editor.setSelection(
+            { line: 0, ch: 0 },
+            { line: 0, ch: 4 }
+        );
+        widget.insertFormatting('bold');
+        
+        expect(widget.editor.getValue()).toBe('**test**');
+    });
+    
+    test('saves content on change', async () => {
+        jest.useFakeTimers();
+        
+        widget.doRender();
+        await widget.doRefresh(mockNote);
+        
+        // Change content
+        widget.editor.setValue('New content');
+        
+        // Wait for debounce
+        jest.advanceTimersByTime(1100);
+        
+        expect(server.put).toHaveBeenCalledWith(
+            'notes/test123/content',
+            { content: 'New content' }
+        );
+    });
+});
+```
+
+## Best Practices
+
+1.  **Performance**
+    
+    *   Debounce saves and preview updates
+    *   Use virtual scrolling for large documents
+    *   Cache rendered content when possible
+2.  **User Experience**
+    
+    *   Provide keyboard shortcuts
+    *   Show visual feedback for actions
+    *   Maintain cursor position on refresh
+3.  **Data Integrity**
+    
+    *   Validate content before saving
+    *   Handle conflicts gracefully
+    *   Provide undo/redo functionality
+4.  **Extensibility**
+    
+    *   Use configuration options
+    *   Support plugins/extensions
+    *   Provide hooks for customization
+5.  **Testing**
+    
+    *   Test rendering edge cases
+    *   Verify import/export functionality
+    *   Test keyboard shortcuts and actions
+
+## Troubleshooting
+
+### Widget Not Loading
+
+*   Check type registration
+*   Verify MIME type matches
+*   Check console for errors
+
+### Content Not Saving
+
+*   Verify backend handler
+*   Check network requests
+*   Review error logs
+
+### Preview Not Updating
+
+*   Check markdown parser
+*   Verify event bindings
+*   Debug render function
+
+### Performance Issues
+
+*   Profile rendering
+*   Optimize DOM updates
+*   Implement virtual scrolling
+
+## Next Steps
+
+*   Review the Theme Development Guide
+*   Explore existing note type implementations
+*   Join the community to share your custom types
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/Plugin Development/Custom Widget Development Guid.md b/docs/Developer Guide/Developer Guide/Plugin Development/Custom Widget Development Guid.md
new file mode 100644
index 0000000000..9405f6a841
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/Plugin Development/Custom Widget Development Guid.md	
@@ -0,0 +1,694 @@
+# Custom Widget Development Guide
+Widgets are the building blocks of Trilium's user interface. This guide shows you how to create your own widgets to extend Trilium with custom functionality.
+
+## Getting Started
+
+To develop widgets, you'll need basic JavaScript knowledge and familiarity with jQuery. Widgets in Trilium follow a simple hierarchy where each type adds specific capabilities - BasicWidget for general UI, NoteContextAwareWidget for note-responsive widgets, and RightPanelWidget for sidebar panels.
+
+## Creating Your First Widget
+
+### Basic Widget
+
+Start with a simple widget that displays static content:
+
+```javascript
+class MyWidget extends BasicWidget {
+    doRender() {
+        this.$widget = $('<div>Hello from my widget!</div>');
+    }
+}
+```
+
+### Note-Aware Widget
+
+To make your widget respond to note changes, extend NoteContextAwareWidget:
+
+```javascript
+class NoteInfoWidget extends NoteContextAwareWidget {
+    doRender() {
+        this.$widget = $('<div class="note-info"></div>');
+    }
+    
+    async refreshWithNote(note) {
+        this.$widget.html(`
+            <h3>${note.title}</h3>
+            <p>Type: ${note.type}</p>
+        `);
+    }
+}
+```
+
+The `refreshWithNote` method is automatically called whenever the user switches to a different note.
+
+### Right Panel Widget
+
+For widgets in the sidebar, extend RightPanelWidget:
+
+```javascript
+class StatsWidget extends RightPanelWidget {
+    get widgetTitle() { return "Statistics"; }
+    
+    async doRenderBody() {
+        this.$body.html('<div class="stats">Loading...</div>');
+    }
+    
+    async refreshWithNote(note) {
+        const content = await note.getContent();
+        const words = content.split(/\s+/).length;
+        this.$body.find('.stats').text(`Words: ${words}`);
+    }
+}
+```
+
+## Widget Lifecycle
+
+Widgets go through three main phases:
+
+**Initialization**: The `doRender()` method creates your widget's HTML structure. This happens once when the widget is first displayed.
+
+**Updates**: The `refresh()` or `refreshWithNote()` methods update your widget's content. These are called when data changes or the user switches notes.
+
+**Cleanup**: If your widget creates timers or external connections, override `cleanup()` to properly dispose of them.
+
+## Handling Events
+
+Widgets automatically subscribe to events based on method names. Simply define a method ending with "Event" to handle that event:
+
+```javascript
+class ReactiveWidget extends NoteContextAwareWidget {
+    // Triggered when note content changes
+    async noteContentChangedEvent({ noteId }) {
+        if (this.noteId === noteId) {
+            await this.refresh();
+        }
+    }
+    
+    // Triggered when user switches notes
+    async noteSwitchedEvent() {
+        console.log('Switched to:', this.noteId);
+    }
+}
+```
+
+Common events include `noteSwitched`, `noteContentChanged`, and `entitiesReloaded`. The event system ensures your widget stays synchronized with Trilium's state.
+
+## State Management
+
+### Local State
+
+Store widget-specific state in instance properties:
+
+```typescript
+class StatefulWidget extends BasicWidget {
+    constructor() {
+        super();
+        this.isExpanded = false;
+        this.cachedData = null;
+    }
+    
+    toggleExpanded() {
+        this.isExpanded = !this.isExpanded;
+        this.$widget.toggleClass('expanded', this.isExpanded);
+    }
+}
+```
+
+### Persistent State
+
+Use options or attributes for persistent state:
+
+```typescript
+class PersistentWidget extends NoteContextAwareWidget {
+    async saveState(state) {
+        await server.put('options', {
+            name: 'widgetState',
+            value: JSON.stringify(state)
+        });
+    }
+    
+    async loadState() {
+        const option = await server.get('options/widgetState');
+        return option ? JSON.parse(option.value) : {};
+    }
+}
+```
+
+## Accessing Trilium APIs
+
+### Frontend Services
+
+```typescript
+import froca from "../services/froca.js";
+import server from "../services/server.js";
+import linkService from "../services/link.js";
+import toastService from "../services/toast.js";
+import dialogService from "../services/dialog.js";
+
+class ApiWidget extends NoteContextAwareWidget {
+    async doRenderBody() {
+        // Access notes
+        const note = await froca.getNote(this.noteId);
+        
+        // Get attributes
+        const attributes = note.getAttributes();
+        
+        // Create links
+        const $link = await linkService.createLink(note.noteId);
+        
+        // Show notifications
+        toastService.showMessage("Widget loaded");
+        
+        // Open dialogs
+        const result = await dialogService.confirm("Continue?");
+    }
+}
+```
+
+### Server Communication
+
+```typescript
+class ServerWidget extends BasicWidget {
+    async loadData() {
+        // GET request
+        const data = await server.get('custom-api/data');
+        
+        // POST request
+        const result = await server.post('custom-api/process', {
+            noteId: this.noteId,
+            action: 'analyze'
+        });
+        
+        // PUT request
+        await server.put(`notes/${this.noteId}`, {
+            title: 'Updated Title'
+        });
+    }
+}
+```
+
+## Styling Widgets
+
+### Inline Styles
+
+```typescript
+class StyledWidget extends BasicWidget {
+    doRender() {
+        this.$widget = $('<div>');
+        this.css('padding', '10px')
+            .css('background-color', '#f0f0f0')
+            .css('border-radius', '4px');
+    }
+}
+```
+
+### CSS Classes
+
+```typescript
+class ClassedWidget extends BasicWidget {
+    doRender() {
+        this.$widget = $('<div>');
+        this.class('custom-widget')
+            .class('bordered');
+    }
+}
+```
+
+### CSS Blocks
+
+```typescript
+class CSSBlockWidget extends BasicWidget {
+    doRender() {
+        this.$widget = $('<div class="my-widget">Content</div>');
+        
+        this.cssBlock(`
+            .my-widget {
+                padding: 15px;
+                background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+                color: white;
+                border-radius: 8px;
+            }
+            
+            .my-widget:hover {
+                transform: translateY(-2px);
+                box-shadow: 0 4px 12px rgba(0,0,0,0.15);
+            }
+        `);
+    }
+}
+```
+
+## Performance Optimization
+
+### Lazy Loading
+
+```typescript
+class LazyWidget extends NoteContextAwareWidget {
+    constructor() {
+        super();
+        this.dataLoaded = false;
+    }
+    
+    async refreshWithNote(note) {
+        if (!this.isVisible()) {
+            return; // Don't load if not visible
+        }
+        
+        if (!this.dataLoaded) {
+            await this.loadExpensiveData();
+            this.dataLoaded = true;
+        }
+        
+        this.updateDisplay();
+    }
+}
+```
+
+### Debouncing Updates
+
+```typescript
+import SpacedUpdate from "../services/spaced_update.js";
+
+class DebouncedWidget extends NoteContextAwareWidget {
+    constructor() {
+        super();
+        this.spacedUpdate = new SpacedUpdate(async () => {
+            await this.performUpdate();
+        }, 500); // 500ms delay
+    }
+    
+    async handleInput(value) {
+        await this.spacedUpdate.scheduleUpdate();
+    }
+}
+```
+
+### Caching
+
+```typescript
+class CachedWidget extends NoteContextAwareWidget {
+    constructor() {
+        super();
+        this.cache = new Map();
+    }
+    
+    async getProcessedData(noteId) {
+        if (!this.cache.has(noteId)) {
+            const data = await this.processExpensiveOperation(noteId);
+            this.cache.set(noteId, data);
+        }
+        return this.cache.get(noteId);
+    }
+    
+    cleanup() {
+        this.cache.clear();
+    }
+}
+```
+
+## Debugging Widgets
+
+### Console Logging
+
+```typescript
+class DebugWidget extends BasicWidget {
+    doRender() {
+        console.log('Widget rendering', this.componentId);
+        console.time('render');
+        
+        this.$widget = $('<div>');
+        
+        console.timeEnd('render');
+    }
+}
+```
+
+### Error Handling
+
+```typescript
+class SafeWidget extends NoteContextAwareWidget {
+    async refreshWithNote(note) {
+        try {
+            await this.riskyOperation();
+        } catch (error) {
+            console.error('Widget error:', error);
+            this.logRenderingError(error);
+            this.$widget.html('<div class="error">Failed to load</div>');
+        }
+    }
+}
+```
+
+### Development Tools
+
+```typescript
+class DevWidget extends BasicWidget {
+    doRender() {
+        this.$widget = $('<div>');
+        
+        // Add debug information in development
+        if (window.glob.isDev) {
+            this.$widget.attr('data-debug', 'true');
+            this.$widget.append(`
+                <div class="debug-info">
+                    Component ID: ${this.componentId}
+                    Position: ${this.position}
+                </div>
+            `);
+        }
+    }
+}
+```
+
+## Complete Example: Note Statistics Widget
+
+Here's a complete example implementing a custom note statistics widget:
+
+```typescript
+import RightPanelWidget from "../widgets/right_panel_widget.js";
+import server from "../services/server.js";
+import froca from "../services/froca.js";
+import toastService from "../services/toast.js";
+import SpacedUpdate from "../services/spaced_update.js";
+
+class NoteStatisticsWidget extends RightPanelWidget {
+    constructor() {
+        super();
+        
+        // Initialize state
+        this.statistics = {
+            words: 0,
+            characters: 0,
+            paragraphs: 0,
+            readingTime: 0,
+            links: 0,
+            images: 0
+        };
+        
+        // Debounce updates for performance
+        this.spacedUpdate = new SpacedUpdate(async () => {
+            await this.calculateStatistics();
+        }, 300);
+    }
+    
+    get widgetTitle() {
+        return "Note Statistics";
+    }
+    
+    get help() {
+        return {
+            title: "Note Statistics",
+            text: "Displays various statistics about the current note including word count, reading time, and more."
+        };
+    }
+    
+    async doRenderBody() {
+        this.$body.html(`
+            <div class="note-statistics">
+                <div class="stat-group">
+                    <h5>Content</h5>
+                    <div class="stat-item">
+                        <span class="stat-label">Words:</span>
+                        <span class="stat-value" data-stat="words">0</span>
+                    </div>
+                    <div class="stat-item">
+                        <span class="stat-label">Characters:</span>
+                        <span class="stat-value" data-stat="characters">0</span>
+                    </div>
+                    <div class="stat-item">
+                        <span class="stat-label">Paragraphs:</span>
+                        <span class="stat-value" data-stat="paragraphs">0</span>
+                    </div>
+                </div>
+                
+                <div class="stat-group">
+                    <h5>Reading</h5>
+                    <div class="stat-item">
+                        <span class="stat-label">Reading time:</span>
+                        <span class="stat-value" data-stat="readingTime">0 min</span>
+                    </div>
+                </div>
+                
+                <div class="stat-group">
+                    <h5>Elements</h5>
+                    <div class="stat-item">
+                        <span class="stat-label">Links:</span>
+                        <span class="stat-value" data-stat="links">0</span>
+                    </div>
+                    <div class="stat-item">
+                        <span class="stat-label">Images:</span>
+                        <span class="stat-value" data-stat="images">0</span>
+                    </div>
+                </div>
+                
+                <div class="stat-actions">
+                    <button class="btn btn-sm refresh-stats">Refresh</button>
+                    <button class="btn btn-sm export-stats">Export</button>
+                </div>
+            </div>
+        `);
+        
+        this.cssBlock(`
+            .note-statistics {
+                padding: 10px;
+            }
+            
+            .stat-group {
+                margin-bottom: 15px;
+                padding-bottom: 15px;
+                border-bottom: 1px solid var(--main-border-color);
+            }
+            
+            .stat-group:last-child {
+                border-bottom: none;
+            }
+            
+            .stat-group h5 {
+                margin: 0 0 10px 0;
+                color: var(--muted-text-color);
+                font-size: 12px;
+                text-transform: uppercase;
+                letter-spacing: 0.5px;
+            }
+            
+            .stat-item {
+                display: flex;
+                justify-content: space-between;
+                padding: 5px 0;
+            }
+            
+            .stat-label {
+                color: var(--main-text-color);
+            }
+            
+            .stat-value {
+                font-weight: 600;
+                color: var(--primary-color);
+            }
+            
+            .stat-actions {
+                margin-top: 15px;
+                display: flex;
+                gap: 10px;
+            }
+            
+            .stat-actions .btn {
+                flex: 1;
+            }
+        `);
+        
+        // Bind events
+        this.$body.on('click', '.refresh-stats', () => this.handleRefresh());
+        this.$body.on('click', '.export-stats', () => this.handleExport());
+    }
+    
+    async refreshWithNote(note) {
+        if (!note) {
+            this.clearStatistics();
+            return;
+        }
+        
+        // Schedule statistics calculation
+        await this.spacedUpdate.scheduleUpdate();
+    }
+    
+    async calculateStatistics() {
+        try {
+            const note = this.note;
+            if (!note) return;
+            
+            const content = await note.getContent();
+            
+            if (note.type === 'text') {
+                // Parse HTML content
+                const $content = $('<div>').html(content);
+                const textContent = $content.text();
+                
+                // Calculate statistics
+                this.statistics.words = this.countWords(textContent);
+                this.statistics.characters = textContent.length;
+                this.statistics.paragraphs = $content.find('p').length;
+                this.statistics.readingTime = Math.ceil(this.statistics.words / 200);
+                this.statistics.links = $content.find('a').length;
+                this.statistics.images = $content.find('img').length;
+            } else if (note.type === 'code') {
+                // For code notes, count lines and characters
+                const lines = content.split('\n');
+                this.statistics.words = lines.length; // Show lines instead of words
+                this.statistics.characters = content.length;
+                this.statistics.paragraphs = 0;
+                this.statistics.readingTime = 0;
+                this.statistics.links = 0;
+                this.statistics.images = 0;
+            }
+            
+            this.updateDisplay();
+            
+        } catch (error) {
+            console.error('Failed to calculate statistics:', error);
+            toastService.showError("Failed to calculate statistics");
+        }
+    }
+    
+    countWords(text) {
+        const words = text.match(/\b\w+\b/g);
+        return words ? words.length : 0;
+    }
+    
+    clearStatistics() {
+        this.statistics = {
+            words: 0,
+            characters: 0,
+            paragraphs: 0,
+            readingTime: 0,
+            links: 0,
+            images: 0
+        };
+        this.updateDisplay();
+    }
+    
+    updateDisplay() {
+        this.$body.find('[data-stat="words"]').text(this.statistics.words);
+        this.$body.find('[data-stat="characters"]').text(this.statistics.characters);
+        this.$body.find('[data-stat="paragraphs"]').text(this.statistics.paragraphs);
+        this.$body.find('[data-stat="readingTime"]').text(`${this.statistics.readingTime} min`);
+        this.$body.find('[data-stat="links"]').text(this.statistics.links);
+        this.$body.find('[data-stat="images"]').text(this.statistics.images);
+    }
+    
+    async handleRefresh() {
+        await this.calculateStatistics();
+        toastService.showMessage("Statistics refreshed");
+    }
+    
+    async handleExport() {
+        const note = this.note;
+        if (!note) return;
+        
+        const exportData = {
+            noteId: note.noteId,
+            title: note.title,
+            statistics: this.statistics,
+            timestamp: new Date().toISOString()
+        };
+        
+        // Create a CSV
+        const csv = [
+            'Metric,Value',
+            `Words,${this.statistics.words}`,
+            `Characters,${this.statistics.characters}`,
+            `Paragraphs,${this.statistics.paragraphs}`,
+            `Reading Time,${this.statistics.readingTime} minutes`,
+            `Links,${this.statistics.links}`,
+            `Images,${this.statistics.images}`
+        ].join('\n');
+        
+        // Download CSV
+        const blob = new Blob([csv], { type: 'text/csv' });
+        const url = URL.createObjectURL(blob);
+        const a = document.createElement('a');
+        a.href = url;
+        a.download = `statistics-${note.noteId}.csv`;
+        a.click();
+        URL.revokeObjectURL(url);
+        
+        toastService.showMessage("Statistics exported");
+    }
+    
+    async noteContentChangedEvent({ noteId }) {
+        if (this.noteId === noteId) {
+            await this.spacedUpdate.scheduleUpdate();
+        }
+    }
+    
+    cleanup() {
+        this.$body.off('click');
+        this.spacedUpdate = null;
+    }
+}
+
+export default NoteStatisticsWidget;
+```
+
+## Best Practices
+
+### 1\. Memory Management
+
+*   Clean up event listeners in `cleanup()`
+*   Clear caches and timers when widget is destroyed
+*   Avoid circular references
+
+### 2\. Performance
+
+*   Use debouncing for frequent updates
+*   Implement lazy loading for expensive operations
+*   Cache computed values when appropriate
+
+### 3\. Error Handling
+
+*   Always wrap async operations in try-catch
+*   Provide user feedback for errors
+*   Log errors for debugging
+
+### 4\. User Experience
+
+*   Show loading states for async operations
+*   Provide clear error messages
+*   Ensure widgets are responsive
+
+### 5\. Code Organization
+
+*   Keep widgets focused on a single responsibility
+*   Extract reusable logic into services
+*   Use composition over inheritance when possible
+
+## Troubleshooting
+
+### Widget Not Rendering
+
+*   Check `doRender()` creates `this.$widget`
+*   Verify widget is properly registered
+*   Check console for errors
+
+### Events Not Firing
+
+*   Ensure event method name matches pattern: `${eventName}Event`
+*   Check event is being triggered
+*   Verify widget is active/visible
+
+### State Not Persisting
+
+*   Use options or attributes for persistence
+*   Check save operations complete successfully
+*   Verify data serialization
+
+### Performance Issues
+
+*   Profile with browser dev tools
+*   Implement caching and debouncing
+*   Optimize DOM operations
+
+## Next Steps
+
+*   Explore existing widgets in `/apps/client/src/widgets/` for examples
+*   Review the Frontend Script API documentation
+*   Join the Trilium community for support and sharing widgets
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/Plugin Development/Frontend Script Development.md b/docs/Developer Guide/Developer Guide/Plugin Development/Frontend Script Development.md
new file mode 100644
index 0000000000..04b3155390
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/Plugin Development/Frontend Script Development.md	
@@ -0,0 +1,1042 @@
+# Frontend Script Development
+## Frontend Script Development Guide
+
+This guide covers developing frontend scripts in Trilium Notes. Frontend scripts run in the browser context and can interact with the UI, modify behavior, and create custom functionality.
+
+## Prerequisites
+
+*   JavaScript/TypeScript knowledge
+*   Understanding of browser APIs and DOM manipulation
+*   Basic knowledge of Trilium's note system
+*   Familiarity with async/await patterns
+
+## Getting Started
+
+### Creating a Frontend Script
+
+1.  Create a new code note with type "JS Frontend"
+2.  Add the `#run=frontendStartup` label to run on startup
+3.  Write your JavaScript code
+
+```javascript
+// Basic frontend script
+api.addButtonToToolbar({
+    title: 'My Custom Button',
+    icon: 'bx bx-star',
+    action: async () => {
+        await api.showMessage('Hello from custom script!');
+    }
+});
+```
+
+### Script Execution Context
+
+Frontend scripts run in the browser with access to:
+
+*   Trilium's Frontend API (`api` global object)
+*   Browser APIs (DOM, fetch, localStorage, etc.)
+*   jQuery (`$` global)
+*   All loaded libraries
+
+## Frontend API Reference
+
+### Core API Object
+
+The `api` object is globally available in all frontend scripts:
+
+```javascript
+// Access current note
+const currentNote = api.getActiveContextNote();
+
+// Get note by ID
+const note = await api.getNote('noteId123');
+
+// Search notes
+const results = await api.searchForNotes('type:text @label=important');
+```
+
+### Note Operations
+
+#### Reading Notes
+
+```javascript
+// Get active note
+const activeNote = api.getActiveContextNote();
+console.log('Current note:', activeNote.title);
+
+// Get note by ID
+const note = await api.getNote('noteId123');
+
+// Get note content
+const content = await note.getContent();
+
+// Get note attributes
+const attributes = note.getAttributes();
+const labels = note.getLabels();
+const relations = note.getRelations();
+
+// Get child notes
+const children = await note.getChildNotes();
+
+// Get parent notes
+const parents = await note.getParentNotes();
+```
+
+#### Creating Notes
+
+```javascript
+// Create a simple note
+const newNote = await api.createNote(
+    parentNoteId,
+    'New Note Title',
+    'Note content here'
+);
+
+// Create note with options
+const note = await api.createNote(
+    parentNoteId,
+    'Advanced Note',
+    '<p>HTML content</p>',
+    {
+        type: 'text',
+        mime: 'text/html',
+        isProtected: false
+    }
+);
+
+// Create data note for storing JSON
+const dataNote = await api.createDataNote(
+    parentNoteId,
+    'config',
+    { key: 'value', settings: {} }
+);
+```
+
+#### Modifying Notes
+
+```javascript
+// Update note title
+await note.setTitle('New Title');
+
+// Update note content
+await note.setContent('New content');
+
+// Add label
+await note.addLabel('status', 'completed');
+
+// Add relation
+await note.addRelation('relatedTo', targetNoteId);
+
+// Remove attribute
+await note.removeAttribute(attributeId);
+
+// Toggle label
+await note.toggleLabel('archived');
+await note.toggleLabel('priority', 'high');
+```
+
+### UI Interaction
+
+#### Showing Messages
+
+```javascript
+// Simple message
+await api.showMessage('Operation completed');
+
+// Error message
+await api.showError('Something went wrong');
+
+// Message with duration
+await api.showMessage('Saved!', 3000);
+
+// Persistent message
+const toast = await api.showPersistent({
+    title: 'Processing',
+    message: 'Please wait...',
+    icon: 'loader'
+});
+
+// Close persistent message
+toast.close();
+```
+
+#### Dialogs
+
+```javascript
+// Confirmation dialog
+const confirmed = await api.showConfirmDialog({
+    title: 'Delete Note?',
+    message: 'This action cannot be undone.',
+    okButtonLabel: 'Delete',
+    cancelButtonLabel: 'Keep'
+});
+
+if (confirmed) {
+    // Proceed with deletion
+}
+
+// Prompt dialog
+const input = await api.showPromptDialog({
+    title: 'Enter Name',
+    message: 'Please enter a name for the new note:',
+    defaultValue: 'Untitled'
+});
+
+if (input) {
+    await api.createNote(parentId, input, '');
+}
+```
+
+### Custom Commands
+
+#### Adding Menu Items
+
+```javascript
+// Add to note context menu
+api.addContextMenuItemToNotes({
+    title: 'Copy Note ID',
+    icon: 'bx bx-copy',
+    handler: async (note) => {
+        await navigator.clipboard.writeText(note.noteId);
+        await api.showMessage('Note ID copied');
+    }
+});
+
+// Add to toolbar
+api.addButtonToToolbar({
+    title: 'Quick Action',
+    icon: 'bx bx-bolt',
+    shortcut: 'ctrl+shift+q',
+    action: async () => {
+        // Your action here
+    }
+});
+```
+
+#### Registering Commands
+
+```javascript
+// Register a global command
+api.bindGlobalShortcut('ctrl+shift+t', async () => {
+    const note = api.getActiveContextNote();
+    const timestamp = new Date().toISOString();
+    await note.addLabel('lastAccessed', timestamp);
+    await api.showMessage('Timestamp added');
+});
+
+// Add command palette action
+api.addCommandPaletteItem({
+    name: 'Toggle Dark Mode',
+    description: 'Switch between light and dark themes',
+    action: async () => {
+        const currentTheme = await api.getOption('theme');
+        const newTheme = currentTheme === 'dark' ? 'light' : 'dark';
+        await api.setOption('theme', newTheme);
+    }
+});
+```
+
+### Event Handling
+
+#### Listening to Events
+
+```javascript
+// Note switch event
+api.onNoteChange(async ({ note, previousNote }) => {
+    console.log(`Switched from ${previousNote?.title} to ${note.title}`);
+    
+    // Update custom UI
+    updateCustomPanel(note);
+});
+
+// Content change event
+api.onNoteContentChange(async ({ note }) => {
+    console.log(`Content changed for ${note.title}`);
+    
+    // Auto-save to external service
+    await syncToExternalService(note);
+});
+
+// Attribute change event
+api.onAttributeChange(async ({ note, attribute }) => {
+    if (attribute.name === 'status' && attribute.value === 'completed') {
+        await note.addLabel('completedDate', new Date().toISOString());
+    }
+});
+```
+
+#### Custom Events
+
+```javascript
+// Trigger custom event
+api.triggerEvent('myCustomEvent', { data: 'value' });
+
+// Listen to custom event
+api.onCustomEvent('myCustomEvent', async (data) => {
+    console.log('Custom event received:', data);
+});
+```
+
+### Working with Widgets
+
+```javascript
+// Access widget system
+const widget = api.getWidget('NoteTreeWidget');
+
+// Refresh widget
+await widget.refresh();
+
+// Create custom widget container
+const container = api.createCustomWidget({
+    title: 'My Widget',
+    position: 'left',
+    render: async () => {
+        return `
+            <div class="custom-widget">
+                <h3>Custom Content</h3>
+                <button onclick="handleClick()">Click Me</button>
+            </div>
+        `;
+    }
+});
+```
+
+## Complete Example: Auto-Formatting Script
+
+Here's a comprehensive example that automatically formats notes based on their type:
+
+```javascript
+/**
+ * Auto-Formatting Script
+ * Automatically formats notes based on their type and content
+ */
+
+class NoteFormatter {
+    constructor() {
+        this.setupEventListeners();
+        this.registerCommands();
+    }
+    
+    setupEventListeners() {
+        // Format on note save
+        api.onNoteContentChange(async ({ note }) => {
+            if (await this.shouldAutoFormat(note)) {
+                await this.formatNote(note);
+            }
+        });
+        
+        // Format when label added
+        api.onAttributeChange(async ({ note, attribute }) => {
+            if (attribute.type === 'label' && 
+                attribute.name === 'autoFormat' && 
+                attribute.value === 'true') {
+                await this.formatNote(note);
+            }
+        });
+    }
+    
+    registerCommands() {
+        // Add toolbar button
+        api.addButtonToToolbar({
+            title: 'Format Note',
+            icon: 'bx bx-text',
+            shortcut: 'ctrl+shift+f',
+            action: async () => {
+                const note = api.getActiveContextNote();
+                await this.formatNote(note);
+                await api.showMessage('Note formatted');
+            }
+        });
+        
+        // Add context menu item
+        api.addContextMenuItemToNotes({
+            title: 'Auto-Format',
+            icon: 'bx bx-magic',
+            handler: async (note) => {
+                await this.formatNote(note);
+            }
+        });
+    }
+    
+    async shouldAutoFormat(note) {
+        // Check if note has autoFormat label
+        const labels = note.getLabels();
+        return labels.some(l => l.name === 'autoFormat' && l.value === 'true');
+    }
+    
+    async formatNote(note) {
+        const type = note.type;
+        
+        switch (type) {
+            case 'text':
+                await this.formatTextNote(note);
+                break;
+            case 'code':
+                await this.formatCodeNote(note);
+                break;
+            case 'book':
+                await this.formatBookNote(note);
+                break;
+        }
+    }
+    
+    async formatTextNote(note) {
+        let content = await note.getContent();
+        
+        // Apply formatting rules
+        content = this.addTableOfContents(content);
+        content = this.formatHeadings(content);
+        content = this.formatLists(content);
+        content = this.addMetadata(content, note);
+        
+        await note.setContent(content);
+    }
+    
+    async formatCodeNote(note) {
+        const content = await note.getContent();
+        const language = note.getLabelValue('language') || 'javascript';
+        
+        // Add syntax highlighting hints
+        if (!note.hasLabel('language')) {
+            await note.addLabel('language', language);
+        }
+        
+        // Format based on language
+        if (language === 'javascript' || language === 'typescript') {
+            await this.formatJavaScript(note, content);
+        } else if (language === 'python') {
+            await this.formatPython(note, content);
+        }
+    }
+    
+    async formatBookNote(note) {
+        // Organize child notes
+        const children = await note.getChildNotes();
+        
+        // Sort chapters
+        const chapters = children.filter(n => n.hasLabel('chapter'));
+        chapters.sort((a, b) => {
+            const aNum = parseInt(a.getLabelValue('chapter')) || 999;
+            const bNum = parseInt(b.getLabelValue('chapter')) || 999;
+            return aNum - bNum;
+        });
+        
+        // Generate table of contents
+        const toc = this.generateBookTOC(chapters);
+        await note.setContent(toc);
+    }
+    
+    addTableOfContents(content) {
+        const $content = $('<div>').html(content);
+        const headings = $content.find('h1, h2, h3');
+        
+        if (headings.length < 3) return content;
+        
+        let toc = '<div class="table-of-contents">\n<h2>Table of Contents</h2>\n<ul>\n';
+        
+        headings.each((i, heading) => {
+            const $h = $(heading);
+            const level = parseInt(heading.tagName.substring(1));
+            const text = $h.text();
+            const id = `heading-${i}`;
+            
+            $h.attr('id', id);
+            
+            const indent = '  '.repeat(level - 1);
+            toc += `${indent}<li><a href="#${id}">${text}</a></li>\n`;
+        });
+        
+        toc += '</ul>\n</div>\n\n';
+        
+        return toc + $content.html();
+    }
+    
+    formatHeadings(content) {
+        const $content = $('<div>').html(content);
+        
+        // Ensure proper heading hierarchy
+        let lastLevel = 0;
+        $content.find('h1, h2, h3, h4, h5, h6').each((i, heading) => {
+            const $h = $(heading);
+            const level = parseInt(heading.tagName.substring(1));
+            
+            // Fix heading jumps (e.g., h1 -> h3 becomes h1 -> h2)
+            if (level > lastLevel + 1) {
+                const newTag = `h${lastLevel + 1}`;
+                const $newHeading = $(`<${newTag}>`).html($h.html());
+                $h.replaceWith($newHeading);
+            }
+            
+            lastLevel = level;
+        });
+        
+        return $content.html();
+    }
+    
+    formatLists(content) {
+        const $content = $('<div>').html(content);
+        
+        // Add classes to lists for styling
+        $content.find('ul').addClass('formatted-list');
+        $content.find('ol').addClass('formatted-list numbered');
+        
+        // Add checkboxes to task lists
+        $content.find('li').each((i, li) => {
+            const $li = $(li);
+            const text = $li.text();
+            
+            if (text.startsWith('[ ] ')) {
+                $li.html(`<input type="checkbox"> ${text.substring(4)}`);
+                $li.addClass('task-item');
+            } else if (text.startsWith('[x] ')) {
+                $li.html(`<input type="checkbox" checked> ${text.substring(4)}`);
+                $li.addClass('task-item completed');
+            }
+        });
+        
+        return $content.html();
+    }
+    
+    addMetadata(content, note) {
+        const metadata = {
+            lastFormatted: new Date().toISOString(),
+            wordCount: content.replace(/<[^>]*>/g, '').split(/\s+/).length,
+            noteId: note.noteId
+        };
+        
+        const metadataHtml = `
+            <div class="note-metadata" style="display:none;">
+                ${JSON.stringify(metadata)}
+            </div>
+        `;
+        
+        return content + metadataHtml;
+    }
+    
+    async formatJavaScript(note, content) {
+        // Add JSDoc comments if missing
+        const lines = content.split('\n');
+        const formatted = [];
+        
+        for (let i = 0; i < lines.length; i++) {
+            const line = lines[i];
+            
+            // Detect function declarations
+            if (line.match(/^\s*(async\s+)?function\s+\w+/)) {
+                if (i === 0 || !lines[i-1].includes('*/')) {
+                    formatted.push('/**');
+                    formatted.push(' * [Description]');
+                    formatted.push(' */');
+                }
+            }
+            
+            formatted.push(line);
+        }
+        
+        await note.setContent(formatted.join('\n'));
+    }
+    
+    async formatPython(note, content) {
+        // Add docstrings if missing
+        const lines = content.split('\n');
+        const formatted = [];
+        
+        for (let i = 0; i < lines.length; i++) {
+            const line = lines[i];
+            
+            // Detect function definitions
+            if (line.match(/^\s*def\s+\w+/)) {
+                formatted.push(line);
+                if (i + 1 < lines.length && !lines[i + 1].includes('"""')) {
+                    formatted.push('    """[Description]"""');
+                }
+            } else {
+                formatted.push(line);
+            }
+        }
+        
+        await note.setContent(formatted.join('\n'));
+    }
+    
+    generateBookTOC(chapters) {
+        let toc = '<h1>Table of Contents</h1>\n<ol>\n';
+        
+        for (const chapter of chapters) {
+            const num = chapter.getLabelValue('chapter');
+            const title = chapter.title;
+            toc += `  <li><a href="#${chapter.noteId}">${num}. ${title}</a></li>\n`;
+        }
+        
+        toc += '</ol>';
+        return toc;
+    }
+}
+
+// Initialize formatter
+const formatter = new NoteFormatter();
+
+// Add settings UI
+api.addSettingsTab({
+    tabId: 'autoFormat',
+    title: 'Auto-Format',
+    render: () => {
+        return `
+            <div class="auto-format-settings">
+                <h3>Auto-Format Settings</h3>
+                
+                <label>
+                    <input type="checkbox" id="enableAutoFormat">
+                    Enable auto-formatting
+                </label>
+                
+                <label>
+                    <input type="checkbox" id="formatOnSave">
+                    Format on save
+                </label>
+                
+                <label>
+                    <input type="checkbox" id="addTOC">
+                    Auto-add table of contents
+                </label>
+                
+                <h4>Format Rules</h4>
+                <textarea id="formatRules" rows="10">
+{
+  "headings": true,
+  "lists": true,
+  "tables": true,
+  "codeBlocks": true
+}
+                </textarea>
+                
+                <button onclick="saveFormatSettings()">Save Settings</button>
+            </div>
+        `;
+    }
+});
+
+// Save settings function
+window.saveFormatSettings = async () => {
+    const settings = {
+        enableAutoFormat: document.getElementById('enableAutoFormat').checked,
+        formatOnSave: document.getElementById('formatOnSave').checked,
+        addTOC: document.getElementById('addTOC').checked,
+        rules: JSON.parse(document.getElementById('formatRules').value)
+    };
+    
+    await api.setOption('autoFormatSettings', JSON.stringify(settings));
+    await api.showMessage('Settings saved');
+};
+
+console.log('Auto-formatting script loaded');
+```
+
+## Advanced Techniques
+
+### Working with External APIs
+
+```javascript
+// Fetch data from external API
+async function fetchExternalData() {
+    try {
+        const response = await fetch('https://api.example.com/data', {
+            headers: {
+                'Authorization': `Bearer ${await api.getOption('apiKey')}`
+            }
+        });
+        
+        const data = await response.json();
+        
+        // Store in note
+        const dataNote = await api.createDataNote(
+            'root',
+            'External Data',
+            data
+        );
+        
+        await api.showMessage('Data imported successfully');
+        
+    } catch (error) {
+        await api.showError(`Failed to fetch data: ${error.message}`);
+    }
+}
+```
+
+### State Management
+
+```javascript
+// Create a state manager
+class StateManager {
+    constructor() {
+        this.state = {};
+        this.subscribers = [];
+        this.loadState();
+    }
+    
+    async loadState() {
+        const stored = await api.getOption('scriptState');
+        if (stored) {
+            this.state = JSON.parse(stored);
+        }
+    }
+    
+    async setState(key, value) {
+        this.state[key] = value;
+        await this.saveState();
+        this.notifySubscribers(key, value);
+    }
+    
+    getState(key) {
+        return this.state[key];
+    }
+    
+    async saveState() {
+        await api.setOption('scriptState', JSON.stringify(this.state));
+    }
+    
+    subscribe(callback) {
+        this.subscribers.push(callback);
+    }
+    
+    notifySubscribers(key, value) {
+        this.subscribers.forEach(cb => cb(key, value));
+    }
+}
+
+const state = new StateManager();
+```
+
+### Custom UI Components
+
+```javascript
+// Create custom panel
+class CustomPanel {
+    constructor() {
+        this.createPanel();
+    }
+    
+    createPanel() {
+        const $panel = $(`
+            <div id="custom-panel" class="custom-panel">
+                <div class="panel-header">
+                    <h3>Custom Panel</h3>
+                    <button class="close-btn">×</button>
+                </div>
+                <div class="panel-body">
+                    <!-- Content here -->
+                </div>
+            </div>
+        `);
+        
+        $('body').append($panel);
+        
+        // Add styles
+        $('<style>').text(`
+            .custom-panel {
+                position: fixed;
+                right: 20px;
+                top: 80px;
+                width: 300px;
+                background: var(--main-background-color);
+                border: 1px solid var(--main-border-color);
+                border-radius: 8px;
+                box-shadow: 0 2px 10px rgba(0,0,0,0.1);
+                z-index: 1000;
+            }
+            
+            .panel-header {
+                padding: 10px;
+                border-bottom: 1px solid var(--main-border-color);
+                display: flex;
+                justify-content: space-between;
+                align-items: center;
+            }
+            
+            .panel-body {
+                padding: 15px;
+                max-height: 400px;
+                overflow-y: auto;
+            }
+            
+            .close-btn {
+                background: none;
+                border: none;
+                font-size: 20px;
+                cursor: pointer;
+            }
+        `).appendTo('head');
+        
+        // Bind events
+        $panel.find('.close-btn').on('click', () => {
+            $panel.hide();
+        });
+    }
+    
+    show() {
+        $('#custom-panel').show();
+    }
+    
+    hide() {
+        $('#custom-panel').hide();
+    }
+    
+    setContent(html) {
+        $('#custom-panel .panel-body').html(html);
+    }
+}
+
+const panel = new CustomPanel();
+```
+
+## Performance Optimization
+
+### Debouncing
+
+```javascript
+// Debounce function calls
+function debounce(func, wait) {
+    let timeout;
+    return function executedFunction(...args) {
+        const later = () => {
+            clearTimeout(timeout);
+            func(...args);
+        };
+        clearTimeout(timeout);
+        timeout = setTimeout(later, wait);
+    };
+}
+
+// Usage
+const debouncedSearch = debounce(async (query) => {
+    const results = await api.searchForNotes(query);
+    displayResults(results);
+}, 300);
+
+// Input handler
+$('#search-input').on('input', (e) => {
+    debouncedSearch(e.target.value);
+});
+```
+
+### Caching
+
+```javascript
+// Implement caching for expensive operations
+class CacheManager {
+    constructor(maxAge = 60000) { // 1 minute default
+        this.cache = new Map();
+        this.maxAge = maxAge;
+    }
+    
+    set(key, value) {
+        this.cache.set(key, {
+            value,
+            timestamp: Date.now()
+        });
+    }
+    
+    get(key) {
+        const item = this.cache.get(key);
+        if (!item) return null;
+        
+        if (Date.now() - item.timestamp > this.maxAge) {
+            this.cache.delete(key);
+            return null;
+        }
+        
+        return item.value;
+    }
+    
+    clear() {
+        this.cache.clear();
+    }
+}
+
+const cache = new CacheManager();
+
+// Use cache for API calls
+async function getCachedNote(noteId) {
+    let note = cache.get(noteId);
+    if (!note) {
+        note = await api.getNote(noteId);
+        cache.set(noteId, note);
+    }
+    return note;
+}
+```
+
+## Error Handling
+
+```javascript
+// Global error handler for scripts
+window.addEventListener('error', async (event) => {
+    console.error('Script error:', event.error);
+    
+    // Log to note
+    const errorNote = await api.getNote('scriptErrorLog');
+    if (errorNote) {
+        const content = await errorNote.getContent();
+        const errorLog = `
+            <div class="error-entry">
+                <strong>${new Date().toISOString()}</strong><br>
+                ${event.error.message}<br>
+                <pre>${event.error.stack}</pre>
+            </div>
+        `;
+        await errorNote.setContent(content + errorLog);
+    }
+    
+    // Notify user
+    await api.showError('Script error occurred. Check error log.');
+});
+
+// Wrap async operations
+async function safeExecute(func, fallback = null) {
+    try {
+        return await func();
+    } catch (error) {
+        console.error('Operation failed:', error);
+        await api.showError(`Operation failed: ${error.message}`);
+        return fallback;
+    }
+}
+
+// Usage
+const result = await safeExecute(
+    async () => await riskyOperation(),
+    defaultValue
+);
+```
+
+## Testing Frontend Scripts
+
+```javascript
+// Simple test framework
+class TestRunner {
+    constructor() {
+        this.tests = [];
+        this.results = [];
+    }
+    
+    test(name, testFunc) {
+        this.tests.push({ name, testFunc });
+    }
+    
+    async run() {
+        console.log('Running tests...');
+        
+        for (const test of this.tests) {
+            try {
+                await test.testFunc();
+                this.results.push({
+                    name: test.name,
+                    status: 'passed'
+                });
+                console.log(`✓ ${test.name}`);
+            } catch (error) {
+                this.results.push({
+                    name: test.name,
+                    status: 'failed',
+                    error: error.message
+                });
+                console.error(`✗ ${test.name}: ${error.message}`);
+            }
+        }
+        
+        this.displayResults();
+    }
+    
+    displayResults() {
+        const passed = this.results.filter(r => r.status === 'passed').length;
+        const failed = this.results.filter(r => r.status === 'failed').length;
+        
+        console.log(`\nResults: ${passed} passed, ${failed} failed`);
+        
+        if (failed > 0) {
+            console.log('\nFailed tests:');
+            this.results
+                .filter(r => r.status === 'failed')
+                .forEach(r => console.log(`  - ${r.name}: ${r.error}`));
+        }
+    }
+}
+
+// Write tests
+const runner = new TestRunner();
+
+runner.test('Note creation', async () => {
+    const note = await api.createNote('root', 'Test Note', 'Content');
+    if (!note.noteId) throw new Error('Note ID not set');
+    if (note.title !== 'Test Note') throw new Error('Title mismatch');
+});
+
+runner.test('Attribute handling', async () => {
+    const note = await api.getActiveContextNote();
+    await note.addLabel('test', 'value');
+    const label = note.getLabelValue('test');
+    if (label !== 'value') throw new Error('Label value mismatch');
+});
+
+// Run tests
+await runner.run();
+```
+
+## Best Practices
+
+1.  **Code Organization**
+    
+    *   Use classes for complex functionality
+    *   Separate concerns into modules
+    *   Keep functions small and focused
+2.  **Performance**
+    
+    *   Debounce expensive operations
+    *   Cache frequently accessed data
+    *   Use async/await properly
+3.  **Error Handling**
+    
+    *   Always handle errors gracefully
+    *   Provide meaningful error messages
+    *   Log errors for debugging
+4.  **User Experience**
+    
+    *   Show loading states
+    *   Provide feedback for actions
+    *   Ensure scripts don't block UI
+5.  **Security**
+    
+    *   Validate user input
+    *   Sanitize HTML content
+    *   Be cautious with external APIs
+
+## Troubleshooting
+
+### Script Not Running
+
+*   Check the `#run` label is set correctly
+*   Verify syntax errors in console
+*   Ensure script note is not archived
+
+### API Methods Not Available
+
+*   Check you're using correct API version
+*   Verify method names and parameters
+*   Consult API documentation
+
+### Performance Issues
+
+*   Profile script with browser dev tools
+*   Implement caching
+*   Optimize DOM operations
+
+### Event Handlers Not Firing
+
+*   Verify event names are correct
+*   Check element selectors
+*   Ensure elements exist when binding
+
+## Next Steps
+
+*   Explore the Backend Script Development guide
+*   Review existing scripts in the Trilium community
+*   Experiment with the Script API documentation
\ No newline at end of file
diff --git a/docs/Developer Guide/Developer Guide/Plugin Development/Theme Development Guide.md b/docs/Developer Guide/Developer Guide/Plugin Development/Theme Development Guide.md
new file mode 100644
index 0000000000..e95d2441bb
--- /dev/null
+++ b/docs/Developer Guide/Developer Guide/Plugin Development/Theme Development Guide.md	
@@ -0,0 +1,1173 @@
+# Theme Development Guide
+This guide covers creating custom themes for Trilium Notes. Themes allow you to customize the visual appearance of the application to match your preferences or organizational branding.
+
+## Prerequisites
+
+*   CSS and CSS Variables knowledge
+*   Understanding of color theory and accessibility
+*   Basic knowledge of Trilium's note system
+*   Familiarity with browser developer tools
+
+## Understanding Trilium's Theme System
+
+### Theme Architecture
+
+Trilium's theming system uses CSS custom properties (variables) for consistent styling across the application. Themes are stored as CSS code notes that override default variables.
+
+### Default Themes
+
+Trilium includes several built-in themes:
+
+*   **Light** - Default light theme
+*   **Dark** - Dark mode theme
+*   **Steel Blue** - Professional blue theme
+*   **Next** - Modern, clean theme
+
+### CSS Variable Structure
+
+Themes work by overriding CSS custom properties defined in the root scope:
+
+```css
+:root {
+    /* Main colors */
+    --main-background-color: #ffffff;
+    --main-text-color: #333333;
+    --main-border-color: #dddddd;
+    
+    /* Accent colors */
+    --primary-color: #007bff;
+    --secondary-color: #6c757d;
+    
+    /* Component colors */
+    --button-background-color: #f0f0f0;
+    --button-text-color: #333333;
+    
+    /* And many more... */
+}
+```
+
+## Creating Your First Theme
+
+### Step 1: Create Theme Note
+
+1.  Create a new code note
+2.  Set type to "CSS"
+3.  Add label `#appTheme=myThemeName`
+4.  Add label `#appCss` (for global application)
+
+### Step 2: Define Basic Colors
+
+```css
+/* My Custom Theme */
+:root {
+    /* Primary Palette */
+    --theme-primary: #5e72e4;
+    --theme-secondary: #825ee4;
+    --theme-success: #2dce89;
+    --theme-info: #11cdef;
+    --theme-warning: #fb6340;
+    --theme-danger: #f5365c;
+    
+    /* Neutral Colors */
+    --theme-white: #ffffff;
+    --theme-light: #f6f9fc;
+    --theme-gray: #8898aa;
+    --theme-dark: #32325d;
+    --theme-black: #000000;
+    
+    /* Main Application Colors */
+    --main-background-color: var(--theme-light);
+    --main-text-color: var(--theme-dark);
+    --main-border-color: #e9ecef;
+    
+    /* Primary Actions */
+    --primary-color: var(--theme-primary);
+    --primary-color-hover: #4c63d2;
+    --primary-text-color: var(--theme-white);
+    
+    /* Menu and Navigation */
+    --menu-background-color: var(--theme-white);
+    --menu-text-color: var(--theme-dark);
+    --menu-hover-background-color: var(--theme-light);
+    
+    /* Tree Component */
+    --tree-background-color: var(--theme-white);
+    --tree-text-color: var(--theme-dark);
+    --tree-hover-background-color: #f0f4f8;
+    --tree-selected-background-color: var(--theme-primary);
+    --tree-selected-text-color: var(--theme-white);
+    
+    /* Editor */
+    --editor-background-color: var(--theme-white);
+    --editor-text-color: var(--theme-dark);
+    --editor-selection-background: rgba(94, 114, 228, 0.2);
+    
+    /* Buttons */
+    --button-background-color: var(--theme-white);
+    --button-text-color: var(--theme-dark);
+    --button-border-color: var(--main-border-color);
+    --button-hover-background-color: var(--theme-light);
+    
+    /* Inputs */
+    --input-background-color: var(--theme-white);
+    --input-text-color: var(--theme-dark);
+    --input-border-color: #cbd5e0;
+    --input-focus-border-color: var(--theme-primary);
+    
+    /* Code */
+    --code-background-color: #f7fafc;
+    --code-text-color: #d63384;
+    
+    /* Links */
+    --link-color: var(--theme-primary);
+    --link-hover-color: var(--theme-secondary);
+    
+    /* Shadows */
+    --box-shadow-sm: 0 1px 3px rgba(50, 50, 93, 0.15);
+    --box-shadow-md: 0 4px 6px rgba(50, 50, 93, 0.11);
+    --box-shadow-lg: 0 10px 40px rgba(50, 50, 93, 0.2);
+}
+```
+
+### Step 3: Style Components
+
+```css
+/* Component Customizations */
+
+/* Note Tree Styling */
+.tree-wrapper {
+    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+    padding: 1px;
+}
+
+.tree {
+    background: var(--tree-background-color);
+    border-radius: 8px;
+    margin: 1px;
+}
+
+.fancytree-node {
+    border-radius: 4px;
+    margin: 2px 4px;
+    transition: all 0.2s ease;
+}
+
+.fancytree-node:hover {
+    transform: translateX(2px);
+    box-shadow: var(--box-shadow-sm);
+}
+
+/* Tab Styling */
+.note-tab {
+    background: var(--theme-white);
+    border: none;
+    border-radius: 8px 8px 0 0;
+    margin-right: 2px;
+    transition: all 0.2s ease;
+}
+
+.note-tab:hover {
+    background: var(--theme-light);
+    transform: translateY(-2px);
+}
+
+.note-tab.active {
+    background: var(--theme-primary);
+    color: var(--theme-white);
+    box-shadow: var(--box-shadow-md);
+}
+
+/* Button Styling */
+.btn {
+    border-radius: 6px;
+    padding: 8px 16px;
+    font-weight: 500;
+    transition: all 0.2s ease;
+    border: 1px solid transparent;
+}
+
+.btn:hover {
+    transform: translateY(-1px);
+    box-shadow: var(--box-shadow-md);
+}
+
+.btn-primary {
+    background: linear-gradient(135deg, var(--theme-primary) 0%, var(--theme-secondary) 100%);
+    color: var(--theme-white);
+    border: none;
+}
+
+/* Card/Panel Styling */
+.card {
+    border: none;
+    border-radius: 12px;
+    box-shadow: var(--box-shadow-sm);
+    overflow: hidden;
+}
+
+.card-header {
+    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
+    border-bottom: 2px solid var(--main-border-color);
+    padding: 12px 16px;
+}
+
+/* Dialog Styling */
+.modal-content {
+    border-radius: 12px;
+    border: none;
+    box-shadow: var(--box-shadow-lg);
+}
+
+.modal-header {
+    background: linear-gradient(135deg, var(--theme-primary) 0%, var(--theme-secondary) 100%);
+    color: var(--theme-white);
+    border-radius: 12px 12px 0 0;
+}
+
+/* Scrollbar Styling */
+::-webkit-scrollbar {
+    width: 10px;
+    height: 10px;
+}
+
+::-webkit-scrollbar-track {
+    background: var(--theme-light);
+    border-radius: 10px;
+}
+
+::-webkit-scrollbar-thumb {
+    background: linear-gradient(135deg, var(--theme-primary) 0%, var(--theme-secondary) 100%);
+    border-radius: 10px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+    background: var(--theme-secondary);
+}
+```
+
+## Complete Theme Example: Modern Dark
+
+Here's a complete example of a modern dark theme:
+
+```css
+/* Modern Dark Theme for Trilium */
+
+:root {
+    /* Color Palette */
+    --md-bg-primary: #0f0f23;
+    --md-bg-secondary: #1a1b3a;
+    --md-bg-tertiary: #252647;
+    --md-bg-elevated: #2d2f54;
+    
+    --md-text-primary: #e4e4e7;
+    --md-text-secondary: #a1a1aa;
+    --md-text-muted: #71717a;
+    
+    --md-accent-primary: #7c3aed;
+    --md-accent-secondary: #a855f7;
+    --md-accent-success: #10b981;
+    --md-accent-warning: #f59e0b;
+    --md-accent-danger: #ef4444;
+    --md-accent-info: #3b82f6;
+    
+    --md-border: rgba(255, 255, 255, 0.1);
+    --md-border-strong: rgba(255, 255, 255, 0.2);
+    
+    /* Main Application */
+    --main-background-color: var(--md-bg-primary);
+    --main-text-color: var(--md-text-primary);
+    --main-border-color: var(--md-border);
+    --body-background-color: var(--md-bg-primary);
+    
+    /* Accents */
+    --primary-color: var(--md-accent-primary);
+    --primary-color-hover: var(--md-accent-secondary);
+    --primary-text-color: #ffffff;
+    
+    --muted-text-color: var(--md-text-muted);
+    --active-item-background-color: var(--md-bg-elevated);
+    --active-item-text-color: var(--md-accent-primary);
+    
+    /* Menu */
+    --menu-background-color: var(--md-bg-secondary);
+    --menu-text-color: var(--md-text-primary);
+    --menu-hover-background-color: var(--md-bg-tertiary);
+    --dropdown-background-color: var(--md-bg-tertiary);
+    --dropdown-item-hover-background-color: var(--md-bg-elevated);
+    
+    /* Tree */
+    --tree-background-color: var(--md-bg-secondary);
+    --tree-text-color: var(--md-text-primary);
+    --tree-hover-background-color: var(--md-bg-tertiary);
+    --tree-selected-background-color: var(--md-accent-primary);
+    --tree-selected-text-color: #ffffff;
+    
+    /* Editor */
+    --editor-background-color: var(--md-bg-primary);
+    --editor-text-color: var(--md-text-primary);
+    --editor-selection-background: rgba(124, 58, 237, 0.3);
+    
+    /* Note Detail */
+    --detail-background-color: var(--md-bg-primary);
+    --detail-text-color: var(--md-text-primary);
+    --accented-background-color: var(--md-bg-secondary);
+    
+    /* Buttons */
+    --button-background-color: var(--md-bg-tertiary);
+    --button-text-color: var(--md-text-primary);
+    --button-border-color: var(--md-border);
+    --button-hover-background-color: var(--md-bg-elevated);
+    --button-disabled-background-color: var(--md-bg-secondary);
+    
+    /* Inputs */
+    --input-background-color: var(--md-bg-secondary);
+    --input-text-color: var(--md-text-primary);
+    --input-border-color: var(--md-border);
+    --input-focus-border-color: var(--md-accent-primary);
+    
+    /* Modal */
+    --modal-background-color: var(--md-bg-secondary);
+    --modal-header-background-color: var(--md-bg-tertiary);
+    --modal-backdrop-color: rgba(0, 0, 0, 0.7);
+    
+    /* Tabs */
+    --tab-background-color: var(--md-bg-secondary);
+    --tab-hover-background-color: var(--md-bg-tertiary);
+    --tab-active-background-color: var(--md-bg-primary);
+    --tab-active-text-color: var(--md-accent-primary);
+    
+    /* Code */
+    --code-background-color: var(--md-bg-secondary);
+    --code-text-color: var(--md-accent-info);
+    
+    /* Links */
+    --link-color: var(--md-accent-info);
+    --link-hover-color: var(--md-accent-primary);
+    
+    /* Tooltips */
+    --tooltip-background-color: var(--md-bg-elevated);
+    --tooltip-text-color: var(--md-text-primary);
+    
+    /* Scrollbar */
+    --scrollbar-track-color: var(--md-bg-secondary);
+    --scrollbar-thumb-color: var(--md-bg-elevated);
+    
+    /* Shadows */
+    --box-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
+    --box-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
+    --box-shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
+}
+
+/* Component Overrides */
+
+/* Smooth transitions */
+* {
+    transition: background-color 0.2s ease, color 0.2s ease;
+}
+
+/* Body and main containers */
+body {
+    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+    background: var(--md-bg-primary);
+}
+
+/* Glass morphism effect for cards */
+.card {
+    background: rgba(26, 27, 58, 0.6);
+    backdrop-filter: blur(10px);
+    border: 1px solid var(--md-border);
+    border-radius: 12px;
+    box-shadow: var(--box-shadow-md);
+}
+
+.card-header {
+    background: rgba(37, 38, 71, 0.8);
+    border-bottom: 1px solid var(--md-border-strong);
+}
+
+/* Gradient accents */
+.note-tab.active::after {
+    content: '';
+    position: absolute;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    height: 2px;
+    background: linear-gradient(90deg, var(--md-accent-primary), var(--md-accent-secondary));
+}
+
+/* Glow effects for focused elements */
+input:focus,
+textarea:focus,
+.CodeMirror-focused {
+    outline: none;
+    border-color: var(--md-accent-primary);
+    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
+}
+
+/* Button animations */
+.btn {
+    position: relative;
+    overflow: hidden;
+    border-radius: 8px;
+    font-weight: 500;
+    letter-spacing: 0.025em;
+}
+
+.btn::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: -100%;
+    width: 100%;
+    height: 100%;
+    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
+    transition: left 0.5s;
+}
+
+.btn:hover::before {
+    left: 100%;
+}
+
+.btn-primary {
+    background: linear-gradient(135deg, var(--md-accent-primary), var(--md-accent-secondary));
+    border: none;
+    color: white;
+}
+
+/* Tree styling with hover effects */
+.fancytree-node {
+    border-radius: 6px;
+    padding: 2px 4px;
+    margin: 2px 8px;
+}
+
+.fancytree-node:hover {
+    background: var(--md-bg-tertiary);
+    box-shadow: inset 0 0 0 1px var(--md-border-strong);
+}
+
+.fancytree-active {
+    background: var(--md-accent-primary) !important;
+    color: white !important;
+}
+
+.fancytree-active .fancytree-title {
+    color: white !important;
+}
+
+/* Note content styling */
+.note-detail {
+    padding: 24px;
+}
+
+.note-detail h1 {
+    color: var(--md-accent-primary);
+    border-bottom: 2px solid var(--md-border-strong);
+    padding-bottom: 12px;
+    margin-bottom: 24px;
+}
+
+.note-detail h2 {
+    color: var(--md-accent-secondary);
+    margin-top: 32px;
+    margin-bottom: 16px;
+}
+
+.note-detail code {
+    background: var(--md-bg-tertiary);
+    color: var(--md-accent-info);
+    padding: 2px 6px;
+    border-radius: 4px;
+    font-family: 'JetBrains Mono', 'Fira Code', monospace;
+}
+
+.note-detail pre {
+    background: var(--md-bg-secondary);
+    border: 1px solid var(--md-border);
+    border-radius: 8px;
+    padding: 16px;
+    overflow-x: auto;
+}
+
+.note-detail blockquote {
+    border-left: 4px solid var(--md-accent-primary);
+    background: var(--md-bg-secondary);
+    padding: 12px 20px;
+    margin: 16px 0;
+    border-radius: 0 8px 8px 0;
+}
+
+/* Table styling */
+table {
+    border-collapse: separate;
+    border-spacing: 0;
+    border-radius: 8px;
+    overflow: hidden;
+    box-shadow: var(--box-shadow-sm);
+}
+
+th {
+    background: var(--md-bg-tertiary);
+    color: var(--md-accent-primary);
+    font-weight: 600;
+    text-transform: uppercase;
+    font-size: 0.875em;
+    letter-spacing: 0.05em;
+}
+
+td {
+    background: var(--md-bg-secondary);
+    border-top: 1px solid var(--md-border);
+}
+
+tr:hover td {
+    background: var(--md-bg-tertiary);
+}
+
+/* Scrollbar styling */
+::-webkit-scrollbar {
+    width: 12px;
+    height: 12px;
+}
+
+::-webkit-scrollbar-track {
+    background: var(--md-bg-secondary);
+    border-radius: 6px;
+}
+
+::-webkit-scrollbar-thumb {
+    background: var(--md-bg-elevated);
+    border-radius: 6px;
+    border: 2px solid var(--md-bg-secondary);
+}
+
+::-webkit-scrollbar-thumb:hover {
+    background: var(--md-accent-primary);
+}
+
+/* Animations */
+@keyframes fadeIn {
+    from {
+        opacity: 0;
+        transform: translateY(-10px);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
+
+.modal {
+    animation: fadeIn 0.2s ease;
+}
+
+/* Loading states */
+.loading {
+    position: relative;
+}
+
+.loading::after {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: linear-gradient(90deg, 
+        transparent,
+        rgba(124, 58, 237, 0.1),
+        transparent
+    );
+    animation: shimmer 2s infinite;
+}
+
+@keyframes shimmer {
+    0% {
+        transform: translateX(-100%);
+    }
+    100% {
+        transform: translateX(100%);
+    }
+}
+
+/* Focus visible for accessibility */
+*:focus-visible {
+    outline: 2px solid var(--md-accent-primary);
+    outline-offset: 2px;
+}
+
+/* Custom tooltip styling */
+.tooltip {
+    background: var(--md-bg-elevated);
+    border: 1px solid var(--md-border-strong);
+    border-radius: 6px;
+    padding: 8px 12px;
+    font-size: 0.875em;
+    box-shadow: var(--box-shadow-lg);
+}
+
+.tooltip-arrow {
+    border-color: var(--md-bg-elevated);
+}
+```
+
+## Advanced Theming Techniques
+
+### Dynamic Theme Switching
+
+```javascript
+// Frontend script for theme switching
+class ThemeSwitcher {
+    constructor() {
+        this.themes = ['light', 'dark', 'modern-dark', 'custom'];
+        this.currentTheme = this.getCurrentTheme();
+        this.init();
+    }
+    
+    init() {
+        this.createThemeToggle();
+        this.bindEvents();
+        this.applyTheme(this.currentTheme);
+    }
+    
+    createThemeToggle() {
+        const $toggle = $(`
+            <div class="theme-switcher">
+                <button class="theme-toggle" title="Switch Theme">
+                    <span class="bx bx-palette"></span>
+                </button>
+                <div class="theme-dropdown">
+                    ${this.themes.map(theme => `
+                        <div class="theme-option" data-theme="${theme}">
+                            <span class="theme-preview ${theme}"></span>
+                            <span class="theme-name">${this.formatThemeName(theme)}</span>
+                        </div>
+                    `).join('')}
+                </div>
+            </div>
+        `);
+        
+        $('body').append($toggle);
+        
+        // Add styles
+        $('<style>').text(`
+            .theme-switcher {
+                position: fixed;
+                bottom: 20px;
+                right: 20px;
+                z-index: 10000;
+            }
+            
+            .theme-toggle {
+                width: 50px;
+                height: 50px;
+                border-radius: 50%;
+                background: var(--primary-color);
+                color: white;
+                border: none;
+                box-shadow: 0 4px 12px rgba(0,0,0,0.2);
+                cursor: pointer;
+                font-size: 20px;
+            }
+            
+            .theme-dropdown {
+                position: absolute;
+                bottom: 60px;
+                right: 0;
+                background: var(--menu-background-color);
+                border: 1px solid var(--main-border-color);
+                border-radius: 8px;
+                padding: 8px;
+                box-shadow: 0 4px 12px rgba(0,0,0,0.15);
+                display: none;
+                min-width: 200px;
+            }
+            
+            .theme-switcher.active .theme-dropdown {
+                display: block;
+            }
+            
+            .theme-option {
+                display: flex;
+                align-items: center;
+                padding: 8px;
+                border-radius: 4px;
+                cursor: pointer;
+                gap: 12px;
+            }
+            
+            .theme-option:hover {
+                background: var(--menu-hover-background-color);
+            }
+            
+            .theme-preview {
+                width: 24px;
+                height: 24px;
+                border-radius: 50%;
+                border: 2px solid var(--main-border-color);
+            }
+            
+            .theme-preview.light {
+                background: linear-gradient(135deg, #ffffff, #f0f0f0);
+            }
+            
+            .theme-preview.dark {
+                background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
+            }
+            
+            .theme-preview.modern-dark {
+                background: linear-gradient(135deg, #0f0f23, #7c3aed);
+            }
+            
+            .theme-preview.custom {
+                background: linear-gradient(135deg, #667eea, #764ba2);
+            }
+        `).appendTo('head');
+    }
+    
+    bindEvents() {
+        $('.theme-toggle').on('click', () => {
+            $('.theme-switcher').toggleClass('active');
+        });
+        
+        $('.theme-option').on('click', (e) => {
+            const theme = $(e.currentTarget).data('theme');
+            this.applyTheme(theme);
+            $('.theme-switcher').removeClass('active');
+        });
+        
+        // Close on outside click
+        $(document).on('click', (e) => {
+            if (!$(e.target).closest('.theme-switcher').length) {
+                $('.theme-switcher').removeClass('active');
+            }
+        });
+    }
+    
+    async applyTheme(themeName) {
+        // Save preference
+        await api.setOption('theme', themeName);
+        
+        // Apply theme class
+        $('body').removeClass(this.themes.map(t => `theme-${t}`).join(' '));
+        $('body').addClass(`theme-${themeName}`);
+        
+        this.currentTheme = themeName;
+        
+        // Show notification
+        await api.showMessage(`Theme changed to ${this.formatThemeName(themeName)}`);
+    }
+    
+    getCurrentTheme() {
+        return api.getOption('theme') || 'light';
+    }
+    
+    formatThemeName(theme) {
+        return theme.split('-').map(word => 
+            word.charAt(0).toUpperCase() + word.slice(1)
+        ).join(' ');
+    }
+}
+
+// Initialize theme switcher
+new ThemeSwitcher();
+```
+
+### Responsive Theme Variables
+
+```css
+/* Responsive theme adjustments */
+@media (max-width: 768px) {
+    :root {
+        /* Adjust spacing for mobile */
+        --mobile-padding: 12px;
+        --mobile-margin: 8px;
+        
+        /* Larger touch targets */
+        --button-min-height: 44px;
+        --input-min-height: 44px;
+    }
+    
+    .btn {
+        min-height: var(--button-min-height);
+        padding: 12px 16px;
+    }
+    
+    input,
+    textarea,
+    select {
+        min-height: var(--input-min-height);
+        font-size: 16px; /* Prevent zoom on iOS */
+    }
+    
+    .tree {
+        font-size: 14px;
+    }
+    
+    .note-detail {
+        padding: var(--mobile-padding);
+    }
+}
+
+/* High contrast mode support */
+@media (prefers-contrast: high) {
+    :root {
+        --main-border-color: #000000;
+        --button-border-width: 2px;
+        --focus-outline-width: 3px;
+    }
+    
+    .btn {
+        border: var(--button-border-width) solid var(--button-border-color);
+    }
+    
+    *:focus {
+        outline: var(--focus-outline-width) solid var(--primary-color);
+    }
+}
+
+/* Dark mode preference */
+@media (prefers-color-scheme: dark) {
+    :root:not(.theme-light) {
+        /* Automatically use dark colors */
+        --main-background-color: #1a1a1a;
+        --main-text-color: #e0e0e0;
+        /* ... other dark mode variables */
+    }
+}
+
+/* Reduced motion support */
+@media (prefers-reduced-motion: reduce) {
+    * {
+        animation-duration: 0.01ms !important;
+        animation-iteration-count: 1 !important;
+        transition-duration: 0.01ms !important;
+    }
+}
+```
+
+### Theme-Specific Icons
+
+```css
+/* Custom icon styling per theme */
+.theme-modern-dark .bx {
+    /* Add glow effect to icons */
+    filter: drop-shadow(0 0 2px rgba(124, 58, 237, 0.5));
+}
+
+.theme-modern-dark .bx-star {
+    color: gold;
+    filter: drop-shadow(0 0 4px gold);
+}
+
+/* Replace icons with theme-specific versions */
+.theme-cyberpunk .bx-folder::before {
+    content: '\eb1f'; /* Different icon */
+    color: #00ff00;
+}
+
+/* Animated icons */
+@keyframes pulse {
+    0%, 100% {
+        transform: scale(1);
+    }
+    50% {
+        transform: scale(1.1);
+    }
+}
+
+.theme-animated .bx-bell {
+    animation: pulse 2s infinite;
+}
+
+.theme-animated .note-modified .bx {
+    animation: pulse 1s;
+}
+```
+
+## Accessibility Considerations
+
+```css
+/* Ensure sufficient color contrast */
+:root {
+    /* WCAG AAA compliant contrast ratios */
+    --text-on-primary: #ffffff; /* 7:1 contrast with primary */
+    --text-on-secondary: #000000; /* 7:1 contrast with secondary */
+}
+
+/* Focus indicators */
+*:focus-visible {
+    outline: 3px solid var(--primary-color);
+    outline-offset: 2px;
+}
+
+/* Skip to content link */
+.skip-to-content {
+    position: absolute;
+    top: -40px;
+    left: 0;
+    background: var(--primary-color);
+    color: var(--text-on-primary);
+    padding: 8px;
+    text-decoration: none;
+    z-index: 100000;
+}
+
+.skip-to-content:focus {
+    top: 0;
+}
+
+/* High contrast borders */
+.high-contrast {
+    --main-border-color: #000000;
+    --input-border-width: 2px;
+}
+
+/* Color blind friendly palette */
+.theme-colorblind {
+    --success-color: #0066cc; /* Blue instead of green */
+    --danger-color: #cc6600; /* Orange instead of red */
+    --warning-color: #663399; /* Purple instead of yellow */
+}
+
+/* Readable fonts */
+body {
+    font-size: 16px;
+    line-height: 1.6;
+    letter-spacing: 0.02em;
+}
+
+/* Sufficient click targets */
+button,
+a,
+input[type="checkbox"],
+input[type="radio"] {
+    min-width: 44px;
+    min-height: 44px;
+}
+```
+
+## Publishing Your Theme
+
+### Package Structure
+
+```
+my-theme/
+├── theme.css         # Main theme file
+├── preview.png       # Screenshot of theme
+├── README.md        # Documentation
+├── package.json     # Metadata
+└── variants/        # Optional theme variants
+    ├── dark.css
+    └── light.css
+```
+
+### Metadata File
+
+```json
+{
+  "name": "my-awesome-theme",
+  "version": "1.0.0",
+  "description": "A beautiful theme for Trilium Notes",
+  "author": "Your Name",
+  "license": "MIT",
+  "trilium": {
+    "minVersion": "0.90.0",
+    "type": "theme",
+    "variants": ["light", "dark"],
+    "labels": {
+      "appTheme": "myAwesomeTheme",
+      "appCss": true
+    }
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/username/trilium-theme"
+  },
+  "keywords": ["trilium", "theme", "dark", "modern"]
+}
+```
+
+### Installation Instructions
+
+```gfm
+# My Awesome Theme
+
+A modern theme for Trilium Notes with beautiful gradients and smooth animations.
+
+## Installation
+
+1. Create a new CSS code note in Trilium
+2. Copy the contents of `theme.css`
+3. Add the following labels to the note:
+   - `#appTheme=myAwesomeTheme`
+   - `#appCss`
+4. Reload Trilium (Ctrl+R)
+5. Select the theme from Options → Appearance → Theme
+
+## Features
+
+- Beautiful gradient accents
+- Smooth animations
+- Dark and light variants
+- High contrast support
+- Mobile responsive
+
+## Customization
+
+You can customize the theme by modifying the CSS variables at the top of the file.
+
+## Screenshots
+
+![Light Mode](./screenshots/light.png)
+![Dark Mode](./screenshots/dark.png)
+```
+
+## Testing Your Theme
+
+### Browser Developer Tools
+
+```javascript
+// Test theme in console
+function testTheme() {
+    // Check contrast ratios
+    const bg = getComputedStyle(document.documentElement)
+        .getPropertyValue('--main-background-color');
+    const fg = getComputedStyle(document.documentElement)
+        .getPropertyValue('--main-text-color');
+    
+    console.log(`Background: ${bg}`);
+    console.log(`Foreground: ${fg}`);
+    
+    // Test all theme variables
+    const styles = getComputedStyle(document.documentElement);
+    const themeVars = Array.from(document.styleSheets)
+        .flatMap(sheet => Array.from(sheet.cssRules))
+        .filter(rule => rule.selectorText === ':root')
+        .flatMap(rule => Array.from(rule.style))
+        .filter(prop => prop.startsWith('--'));
+    
+    themeVars.forEach(varName => {
+        const value = styles.getPropertyValue(varName);
+        console.log(`${varName}: ${value}`);
+    });
+}
+
+// Apply test theme
+function applyTestTheme(cssText) {
+    const style = document.createElement('style');
+    style.id = 'test-theme';
+    style.textContent = cssText;
+    document.head.appendChild(style);
+}
+
+// Remove test theme
+function removeTestTheme() {
+    document.getElementById('test-theme')?.remove();
+}
+```
+
+### Automated Testing
+
+```javascript
+// Theme validation script
+class ThemeValidator {
+    validate(themeCSS) {
+        const errors = [];
+        const warnings = [];
+        
+        // Check required variables
+        const requiredVars = [
+            '--main-background-color',
+            '--main-text-color',
+            '--main-border-color',
+            '--primary-color'
+        ];
+        
+        requiredVars.forEach(varName => {
+            if (!themeCSS.includes(varName)) {
+                errors.push(`Missing required variable: ${varName}`);
+            }
+        });
+        
+        // Check color contrast
+        const colorPairs = [
+            ['--main-background-color', '--main-text-color'],
+            ['--primary-color', '--primary-text-color'],
+            ['--button-background-color', '--button-text-color']
+        ];
+        
+        // Validate color values
+        const colorRegex = /#[0-9a-fA-F]{3,6}|rgb\(|hsl\(/;
+        const matches = themeCSS.match(/--[\w-]+:\s*([^;]+);/g);
+        
+        matches?.forEach(match => {
+            const value = match.split(':')[1].trim().replace(';', '');
+            if (value && !colorRegex.test(value) && !value.startsWith('var(')) {
+                warnings.push(`Invalid color value: ${match}`);
+            }
+        });
+        
+        return { errors, warnings };
+    }
+}
+```
+
+## Best Practices
+
+1.  **Use CSS Variables**
+    
+    *   Define all colors as variables
+    *   Use semantic naming
+    *   Provide fallback values
+2.  **Maintain Consistency**
+    
+    *   Use consistent spacing
+    *   Keep border radii uniform
+    *   Use a limited color palette
+3.  **Ensure Accessibility**
+    
+    *   Test color contrast
+    *   Provide focus indicators
+    *   Support high contrast mode
+4.  **Performance**
+    
+    *   Avoid complex selectors
+    *   Minimize animations
+    *   Use efficient gradients
+5.  **Documentation**
+    
+    *   Comment complex styles
+    *   Provide customization guide
+    *   Include screenshots
+
+## Troubleshooting
+
+### Theme Not Loading
+
+*   Verify labels are correct
+*   Check for CSS syntax errors
+*   Ensure note type is CSS
+*   Reload application
+
+### Styles Not Applying
+
+*   Check specificity conflicts
+*   Verify variable names
+*   Use browser dev tools
+*   Clear cache
+
+### Performance Issues
+
+*   Reduce animation complexity
+*   Optimize gradients
+*   Minimize shadow usage
+*   Profile with dev tools
+
+## Next Steps
+
+*   Share your theme with the community
+*   Create theme variants
+*   Add custom animations
+*   Build a theme generator tool
\ No newline at end of file
diff --git a/docs/Release Notes/!!!meta.json b/docs/Release Notes/!!!meta.json
index 472a9bd576..67162cd1cf 100644
--- a/docs/Release Notes/!!!meta.json	
+++ b/docs/Release Notes/!!!meta.json	
@@ -1,6 +1,6 @@
 {
     "formatVersion": 2,
-    "appVersion": "0.97.2",
+    "appVersion": "0.98.0",
     "files": [
         {
             "isClone": false,
diff --git a/docs/Release Notes/Release Notes/v0.98.0.md b/docs/Release Notes/Release Notes/v0.98.0.md
index 30a9e9a110..d4c5eb9aa4 100644
--- a/docs/Release Notes/Release Notes/v0.98.0.md	
+++ b/docs/Release Notes/Release Notes/v0.98.0.md	
@@ -44,12 +44,14 @@
 ## 🌍 Internationalization
 
 *   Improvements to multiple languages:
+    
     *   Chinese (Traditional)
     *   Spanish
 *   Some work started on new languages:
     
     Portuguese (Brazil), Japanese, Russian, Serbian, Italian, Greek, Catalan
 *   Added new languages:
+    
     *   Russian (translations by @questamor)
     *   Japanese language (translations by [acwr47](https://hosted.weblate.org/user/acwr47/))\[…\]
 
diff --git a/docs/User Guide/!!!meta.json b/docs/User Guide/!!!meta.json
index c4a1899a3b..d17acb984c 100644
--- a/docs/User Guide/!!!meta.json	
+++ b/docs/User Guide/!!!meta.json	
@@ -1,6 +1,6 @@
 {
     "formatVersion": 2,
-    "appVersion": "0.97.2",
+    "appVersion": "0.98.0",
     "files": [
         {
             "isClone": false,
@@ -28,7 +28,7 @@
                         "BOCnjTMBCoxW"
                     ],
                     "title": "Feature Highlights",
-                    "notePosition": 10,
+                    "notePosition": 70,
                     "prefix": null,
                     "isExpanded": false,
                     "type": "text",
@@ -166,7 +166,7 @@
                         "Otzi9La2YAUX"
                     ],
                     "title": "Installation & Setup",
-                    "notePosition": 20,
+                    "notePosition": 90,
                     "prefix": null,
                     "isExpanded": false,
                     "type": "text",
@@ -797,45 +797,521 @@
                                 },
                                 {
                                     "isClone": false,
-                                    "noteId": "0hzsNCP31IAB",
+                                    "noteId": "0hzsNCP31IAB",
+                                    "notePath": [
+                                        "pOsGYCXsbNQG",
+                                        "Otzi9La2YAUX",
+                                        "WOcw2SLH6tbX",
+                                        "0hzsNCP31IAB"
+                                    ],
+                                    "title": "Authentication",
+                                    "notePosition": 110,
+                                    "prefix": null,
+                                    "isExpanded": false,
+                                    "type": "text",
+                                    "mime": "text/html",
+                                    "attributes": [
+                                        {
+                                            "type": "relation",
+                                            "name": "internalLink",
+                                            "value": "wX4HbRucYSDD",
+                                            "isInheritable": false,
+                                            "position": 10
+                                        },
+                                        {
+                                            "type": "relation",
+                                            "name": "internalLink",
+                                            "value": "YKWqdJhzi2VY",
+                                            "isInheritable": false,
+                                            "position": 20
+                                        },
+                                        {
+                                            "type": "relation",
+                                            "name": "internalLink",
+                                            "value": "7DAiwaf8Z7Rz",
+                                            "isInheritable": false,
+                                            "position": 30
+                                        },
+                                        {
+                                            "type": "label",
+                                            "name": "iconClass",
+                                            "value": "bx bx-lock-alt",
+                                            "isInheritable": false,
+                                            "position": 10
+                                        }
+                                    ],
+                                    "format": "markdown",
+                                    "dataFileName": "Authentication.md",
+                                    "attachments": []
+                                },
+                                {
+                                    "isClone": false,
+                                    "noteId": "7DAiwaf8Z7Rz",
+                                    "notePath": [
+                                        "pOsGYCXsbNQG",
+                                        "Otzi9La2YAUX",
+                                        "WOcw2SLH6tbX",
+                                        "7DAiwaf8Z7Rz"
+                                    ],
+                                    "title": "Multi-Factor Authentication",
+                                    "notePosition": 120,
+                                    "prefix": null,
+                                    "isExpanded": false,
+                                    "type": "text",
+                                    "mime": "text/markdown",
+                                    "attributes": [
+                                        {
+                                            "type": "relation",
+                                            "name": "internalLink",
+                                            "value": "Gzjqa934BdH4",
+                                            "isInheritable": false,
+                                            "position": 10
+                                        },
+                                        {
+                                            "type": "label",
+                                            "name": "shareAlias",
+                                            "value": "multi-factor-authentication",
+                                            "isInheritable": false,
+                                            "position": 10
+                                        },
+                                        {
+                                            "type": "label",
+                                            "name": "iconClass",
+                                            "value": "bx bx-stopwatch",
+                                            "isInheritable": false,
+                                            "position": 20
+                                        }
+                                    ],
+                                    "format": "markdown",
+                                    "dataFileName": "Multi-Factor Authentication.md",
+                                    "attachments": []
+                                }
+                            ]
+                        },
+                        {
+                            "isClone": false,
+                            "noteId": "YXZ2zPDYrWbn",
+                            "notePath": [
+                                "pOsGYCXsbNQG",
+                                "Otzi9La2YAUX",
+                                "YXZ2zPDYrWbn"
+                            ],
+                            "title": "Security",
+                            "notePosition": 30,
+                            "prefix": null,
+                            "isExpanded": false,
+                            "type": "text",
+                            "mime": "text/html",
+                            "attributes": [],
+                            "format": "markdown",
+                            "attachments": [],
+                            "dirFileName": "Security",
+                            "children": [
+                                {
+                                    "isClone": false,
+                                    "noteId": "im3dphtmpQ46",
+                                    "notePath": [
+                                        "pOsGYCXsbNQG",
+                                        "Otzi9La2YAUX",
+                                        "YXZ2zPDYrWbn",
+                                        "im3dphtmpQ46"
+                                    ],
+                                    "title": "Protected Notes and Encryption",
+                                    "notePosition": 20,
+                                    "prefix": null,
+                                    "isExpanded": false,
+                                    "type": "text",
+                                    "mime": "text/markdown",
+                                    "attributes": [],
+                                    "format": "markdown",
+                                    "dataFileName": "Protected Notes and Encryption.md",
+                                    "attachments": []
+                                }
+                            ]
+                        },
+                        {
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+                            "noteId": "U9HWXPbFIRW3",
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+                            "title": "Server Installation",
+                            "notePosition": 40,
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+                                    "type": "text",
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+                                            "notePosition": 10,
+                                            "prefix": null,
+                                            "isExpanded": false,
+                                            "type": "text",
+                                            "mime": "text/markdown",
+                                            "attributes": [
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+                                                    "value": "Q5jqLlwsnIBb",
+                                                    "isInheritable": false,
+                                                    "position": 10
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+                                                    "position": 10
+                                                }
+                                            ],
+                                            "format": "markdown",
+                                            "dataFileName": "Manually.md",
+                                            "attachments": []
+                                        },
+                                        {
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+                                            "noteId": "Ycyax5BCWgUb",
+                                            "notePath": [
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+                                                "U9HWXPbFIRW3",
+                                                "2L6zxH5z1QMw",
+                                                "Ycyax5BCWgUb"
+                                            ],
+                                            "title": "Multiple server instances",
+                                            "notePosition": 20,
+                                            "prefix": null,
+                                            "isExpanded": false,
+                                            "type": "text",
+                                            "mime": "text/markdown",
+                                            "attributes": [
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+                                                    "name": "internalLink",
+                                                    "value": "baqzSqQefEpE",
+                                                    "isInheritable": false,
+                                                    "position": 10
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+                                                {
+                                                    "type": "relation",
+                                                    "name": "internalLink",
+                                                    "value": "Q5jqLlwsnIBb",
+                                                    "isInheritable": false,
+                                                    "position": 20
+                                                },
+                                                {
+                                                    "type": "relation",
+                                                    "name": "internalLink",
+                                                    "value": "FNVzcT2FwEjq",
+                                                    "isInheritable": false,
+                                                    "position": 20
+                                                },
+                                                {
+                                                    "type": "relation",
+                                                    "name": "internalLink",
+                                                    "value": "6YVZgQtfkxkS",
+                                                    "isInheritable": false,
+                                                    "position": 20
+                                                }
+                                            ],
+                                            "format": "markdown",
+                                            "dataFileName": "Multiple server instances.md",
+                                            "attachments": []
+                                        },
+                                        {
+                                            "isClone": false,
+                                            "noteId": "6YVZgQtfkxkS",
+                                            "notePath": [
+                                                "pOsGYCXsbNQG",
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+                                                "U9HWXPbFIRW3",
+                                                "2L6zxH5z1QMw",
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+                                            ],
+                                            "title": "On NixOS",
+                                            "notePosition": 30,
+                                            "prefix": null,
+                                            "isExpanded": false,
+                                            "type": "text",
+                                            "mime": "text/markdown",
+                                            "attributes": [],
+                                            "format": "markdown",
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+                                            "attachments": []
+                                        },
+                                        {
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+                                            "notePath": [
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+                                                "U9HWXPbFIRW3",
+                                                "2L6zxH5z1QMw",
+                                                "Q5jqLlwsnIBb"
+                                            ],
+                                            "title": "Packaged version for Linux",
+                                            "notePosition": 40,
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@@ -11769,7 +12552,7 @@
                                 "m1lbrzyKDaRB"
                             ],
                             "title": "Note ID",
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                                 "0vTSyvhPTAOz"
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                             "title": "Hidden Notes",
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diff --git a/docs/User Guide/User Guide/Advanced Usage/Search/Advanced-Search-Expressions.md b/docs/User Guide/User Guide/Advanced Usage/Search/Advanced-Search-Expressions.md
new file mode 100644
index 0000000000..17ef367ec1
--- /dev/null
+++ b/docs/User Guide/User Guide/Advanced Usage/Search/Advanced-Search-Expressions.md	
@@ -0,0 +1,465 @@
+# Advanced-Search-Expressions
+## Advanced Search Expressions
+
+This guide covers complex search expressions that combine multiple criteria, use advanced operators, and leverage Trilium's relationship system for sophisticated queries.
+
+## Complex Query Construction
+
+### Boolean Logic with Parentheses
+
+Use parentheses to group expressions and control evaluation order:
+
+```
+(#book OR #article) AND #author=Tolkien
+```
+
+Finds notes that are either books or articles, written by Tolkien.
+
+```
+#project AND (#status=active OR #status=pending)
+```
+
+Finds active or pending projects.
+
+```
+meeting AND (#priority=high OR #urgent) AND note.dateCreated >= TODAY-7
+```
+
+Finds recent high-priority or urgent meetings.
+
+### Negation Patterns
+
+Use `NOT` or the `not()` function to exclude certain criteria:
+
+```
+#book AND not(#genre=fiction)
+```
+
+Finds non-fiction books.
+
+```
+project AND not(note.isArchived=true)
+```
+
+Finds non-archived notes containing "project".
+
+```
+#!completed
+```
+
+Short syntax for notes without the "completed" label.
+
+### Mixed Search Types
+
+Combine full-text, attribute, and property searches:
+
+```
+development #category=work note.type=text note.dateModified >= TODAY-30
+```
+
+Finds text notes about development, categorized as work, modified in the last 30 days.
+
+## Advanced Attribute Searches
+
+### Fuzzy Attribute Matching
+
+When fuzzy attribute search is enabled, you can use partial matches:
+
+```
+#lang
+```
+
+Matches labels like "language", "languages", "programming-lang", etc.
+
+```
+#category=prog
+```
+
+Matches categories like "programming", "progress", "program", etc.
+
+### Multiple Attribute Conditions
+
+```
+#book #author=Tolkien #publicationYear>=1950 #publicationYear<1960
+```
+
+Finds Tolkien's books published in the 1950s.
+
+```
+#task #priority=high #status!=completed
+```
+
+Finds high-priority incomplete tasks.
+
+### Complex Label Value Patterns
+
+Use various operators for sophisticated label matching:
+
+```
+#isbn %= '978-[0-9-]+' 
+```
+
+Finds notes with ISBN labels matching the pattern (regex).
+
+```
+#email *=* @company.com
+```
+
+Finds notes with email labels containing "@company.com".
+
+```
+#version >= 2.0
+```
+
+Finds notes with version labels of 2.0 or higher (numeric comparison).
+
+## Relationship Traversal
+
+### Basic Relation Queries
+
+```
+~author.title *=* Tolkien
+```
+
+Finds notes with an "author" relation to notes containing "Tolkien" in the title.
+
+```
+~project.labels.status = active
+```
+
+Finds notes related to projects with active status.
+
+### Multi-Level Relationships
+
+```
+~author.relations.publisher.title = "Penguin Books"
+```
+
+Finds notes authored by someone published by Penguin Books.
+
+```
+~project.children.title *=* documentation
+```
+
+Finds notes related to projects that have child notes about documentation.
+
+### Relationship Direction
+
+```
+note.children.title = "Chapter 1"
+```
+
+Finds parent notes that have a child titled "Chapter 1".
+
+```
+note.parents.labels.category = book
+```
+
+Finds notes whose parents are categorized as books.
+
+```
+note.ancestors.title = "Literature"
+```
+
+Finds notes with "Literature" anywhere in their ancestor chain.
+
+## Property-Based Searches
+
+### Note Metadata Queries
+
+```
+note.type=code note.mime=text/javascript note.dateCreated >= MONTH
+```
+
+Finds JavaScript code notes created this month.
+
+```
+note.isProtected=true note.contentSize > 1000
+```
+
+Finds large protected notes.
+
+```
+note.childrenCount >= 10 note.type=text
+```
+
+Finds text notes with many children.
+
+### Advanced Property Combinations
+
+```
+note.parentCount > 1 #template
+```
+
+Finds template notes that are cloned in multiple places.
+
+```
+note.attributeCount > 5 note.type=text note.contentSize < 500
+```
+
+Finds small text notes with many attributes (heavily tagged short notes).
+
+```
+note.revisionCount > 10 note.dateModified >= TODAY-7
+```
+
+Finds frequently edited notes modified recently.
+
+## Date and Time Expressions
+
+### Relative Date Calculations
+
+```
+#dueDate <= TODAY+7 #dueDate >= TODAY
+```
+
+Finds tasks due in the next week.
+
+```
+note.dateCreated >= MONTH-2 note.dateCreated < MONTH
+```
+
+Finds notes created in the past two months.
+
+```
+#eventDate = YEAR note.dateCreated >= YEAR-1
+```
+
+Finds events scheduled for this year that were planned last year.
+
+### Complex Date Logic
+
+```
+(#startDate <= TODAY AND #endDate >= TODAY) OR #status=ongoing
+```
+
+Finds current events or ongoing items.
+
+```
+#reminderDate <= NOW+3600 #reminderDate > NOW
+```
+
+Finds reminders due in the next hour (using seconds offset).
+
+## Fuzzy Search Techniques
+
+### Fuzzy Exact Matching
+
+```
+#title ~= managment
+```
+
+Finds notes with titles like "management" even with typos.
+
+```
+~category.title ~= progaming
+```
+
+Finds notes related to categories like "programming" with misspellings.
+
+### Fuzzy Contains Matching
+
+```
+note.content ~* algoritm
+```
+
+Finds notes containing words like "algorithm" with spelling variations.
+
+```
+#description ~* recieve
+```
+
+Finds notes with descriptions containing "receive" despite the common misspelling.
+
+### Progressive Fuzzy Strategy
+
+By default, Trilium uses exact matching first, then fuzzy as fallback:
+
+```
+development project
+```
+
+First finds exact matches for "development" and "project", then adds fuzzy matches if needed.
+
+To force fuzzy behavior:
+
+```
+#title ~= development #category ~= projet
+```
+
+## Ordering and Limiting
+
+### Multiple Sort Criteria
+
+```
+#book orderBy #publicationYear desc, note.title asc limit 20
+```
+
+Orders books by publication year (newest first), then by title alphabetically, limited to 20 results.
+
+```
+#task orderBy #priority desc, #dueDate asc
+```
+
+Orders tasks by priority (high first), then by due date (earliest first).
+
+### Dynamic Ordering
+
+```
+#meeting note.dateCreated >= TODAY-30 orderBy note.dateModified desc
+```
+
+Finds recent meetings ordered by last modification.
+
+```
+#project #status=active orderBy note.childrenCount desc limit 10
+```
+
+Finds the 10 most complex active projects (by number of sub-notes).
+
+## Performance Optimization Patterns
+
+### Efficient Query Structure
+
+Start with the most selective criteria:
+
+```
+#book #author=Tolkien note.dateCreated >= 1950-01-01
+```
+
+Better than:
+
+```
+note.dateCreated >= 1950-01-01 #book #author=Tolkien
+```
+
+### Fast Search for Large Datasets
+
+```
+#category=project #status=active
+```
+
+With fast search enabled, this searches only attributes, not content.
+
+### Limiting Expensive Operations
+
+```
+note.content *=* "complex search term" limit 50
+```
+
+Limits content search to prevent performance issues.
+
+## Error Handling and Debugging
+
+### Syntax Validation
+
+Invalid syntax produces helpful error messages:
+
+```
+#book AND OR #author=Tolkien
+```
+
+Error: "Mixed usage of AND/OR - always use parentheses to group AND/OR expressions."
+
+### Debug Mode
+
+Enable debug mode to see how queries are parsed:
+
+```
+#book #author=Tolkien
+```
+
+With debug enabled, shows the internal expression tree structure.
+
+### Common Pitfalls
+
+*   Unescaped special characters: Use quotes or backslashes
+*   Missing parentheses in complex boolean expressions
+*   Incorrect property names: Use `note.title` not `title`
+*   Case sensitivity assumptions: All searches are case-insensitive
+
+## Expression Shortcuts
+
+### Label Shortcuts
+
+Full syntax:
+
+```
+note.labels.category = book
+```
+
+Shortcut:
+
+```
+#category = book
+```
+
+### Relation Shortcuts
+
+Full syntax:
+
+```
+note.relations.author.title *=* Tolkien
+```
+
+Shortcut:
+
+```
+~author.title *=* Tolkien
+```
+
+### Property Shortcuts
+
+Some properties have convenient shortcuts:
+
+```
+note.text *=* content
+```
+
+Searches both title and content for "content".
+
+## Real-World Complex Examples
+
+### Project Management
+
+```
+(#project OR #task) AND #status!=completed AND 
+(#priority=high OR #dueDate <= TODAY+7) AND 
+not(note.isArchived=true) 
+orderBy #priority desc, #dueDate asc
+```
+
+### Research Organization
+
+```
+(#paper OR #article OR #book) AND 
+~author.title *=* smith AND 
+#topic *=* "machine learning" AND 
+note.dateCreated >= YEAR-2 
+orderBy #citationCount desc limit 25
+```
+
+### Content Management
+
+```
+note.type=text AND note.contentSize > 5000 AND 
+#category=documentation AND note.childrenCount >= 3 AND 
+note.dateModified >= MONTH-1 
+orderBy note.dateModified desc
+```
+
+### Knowledge Base Maintenance
+
+```
+note.attributeCount = 0 AND note.childrenCount = 0 AND 
+note.parentCount = 1 AND note.contentSize < 100 AND 
+note.dateModified < TODAY-90
+```
+
+Finds potential cleanup candidates: small, untagged, isolated notes not modified in 90 days.
+
+## Next Steps
+
+*   [Search Examples and Use Cases](Search-Examples-and-Use-Cases.md) - Practical applications
+*   [Saved Searches](Saved-Searches.md) - Creating reusable search configurations
+*   [Technical Search Details](Technical-Search-Details.md) - Implementation details and performance tuning
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Advanced Usage/Search/README.md b/docs/User Guide/User Guide/Advanced Usage/Search/README.md
new file mode 100644
index 0000000000..3d02968a60
--- /dev/null
+++ b/docs/User Guide/User Guide/Advanced Usage/Search/README.md	
@@ -0,0 +1,160 @@
+# README
+## Trilium Search Documentation
+
+Welcome to the comprehensive guide for Trilium's powerful search capabilities. This documentation covers everything from basic text searches to advanced query expressions and performance optimization.
+
+## Quick Start
+
+New to Trilium search? Start here:
+
+*   **[Search Fundamentals](Search-Fundamentals.md)** - Basic concepts, syntax, and operators
+
+## Documentation Sections
+
+### Core Search Features
+
+*   **[Search Fundamentals](Search-Fundamentals.md)** - Basic search syntax, operators, and concepts
+*   **[Advanced Search Expressions](Advanced-Search-Expressions.md)** - Complex queries, boolean logic, and relationship traversal
+
+### Practical Applications
+
+*   **[Search Examples and Use Cases](Search-Examples-and-Use-Cases.md)** - Real-world examples for common workflows
+*   **[Saved Searches](Saved-Searches.md)** - Creating dynamic collections and dashboards
+
+### Technical Reference
+
+*   **[Technical Search Details](Technical-Search-Details.md)** - Performance, implementation, and optimization
+
+## Key Search Capabilities
+
+### Full-Text Search
+
+*   Search note titles and content
+*   Exact phrase matching with quotes
+*   Case-insensitive with diacritic normalization
+*   Support for multiple note types (text, code, mermaid, canvas)
+
+### Attribute-Based Search
+
+*   Label searches: `#tag`, `#category=book`
+*   Relation searches: `~author`, `~author.title=Tolkien`
+*   Complex attribute combinations
+*   Fuzzy attribute matching
+
+### Property Search
+
+*   Note metadata: `note.type=text`, `note.dateCreated >= TODAY-7`
+*   Hierarchical queries: `note.parents.title=Books`
+*   Relationship traversal: `note.children.labels.status=active`
+
+### Advanced Features
+
+*   **Progressive Search**: Exact matching first, fuzzy fallback when needed
+*   **Fuzzy Search**: Typo tolerance and spelling variations
+*   **Boolean Logic**: Complex AND/OR/NOT combinations
+*   **Date Arithmetic**: Dynamic date calculations (TODAY-30, YEAR+1)
+*   **Regular Expressions**: Pattern matching with `%=` operator
+*   **Ordering and Limiting**: Custom sort orders and result limits
+
+## Search Operators Quick Reference
+
+### Text Operators
+
+*   `=` - Exact match
+*   `!=` - Not equal
+*   `*=*` - Contains
+*   `=*` - Starts with
+*   `*=` - Ends with
+*   `%=` - Regular expression
+*   `~=` - Fuzzy exact match
+*   `~*` - Fuzzy contains match
+
+### Numeric Operators
+
+*   `=`, `!=`, `>`, `>=`, `<`, `<=`
+
+### Boolean Operators
+
+*   `AND`, `OR`, `NOT`
+
+### Special Syntax
+
+*   `#labelName` - Label exists
+*   `#labelName=value` - Label equals value
+*   `~relationName` - Relation exists
+*   `~relationName.property` - Relation target property
+*   `note.property` - Note property access
+*   `"exact phrase"` - Quoted phrase search
+
+## Common Search Patterns
+
+### Simple Searches
+
+```
+hello world          # Find notes containing both words
+"project management" # Find exact phrase
+#task               # Find notes with "task" label
+~author             # Find notes with "author" relation
+```
+
+### Attribute Searches
+
+```
+#book #author=Tolkien           # Books by Tolkien
+#task #priority=high #status!=completed  # High-priority incomplete tasks
+~project.title *=* alpha        # Notes related to projects with "alpha" in title
+```
+
+### Date-Based Searches
+
+```
+note.dateCreated >= TODAY-7     # Notes created in last week
+#dueDate <= TODAY+30            # Items due in next 30 days
+#eventDate = YEAR               # Events scheduled for this year
+```
+
+### Complex Queries
+
+```
+(#book OR #article) AND #topic=programming AND note.dateModified >= MONTH
+#project AND (#status=active OR #status=pending) AND not(note.isArchived=true)
+```
+
+## Getting Started Checklist
+
+1.  **Learn Basic Syntax** - Start with simple text and tag searches
+2.  **Understand Operators** - Master the core operators (`=`, `*=*`, etc.)
+3.  **Practice Attributes** - Use `#` for labels and `~` for relations
+4.  **Try Boolean Logic** - Combine searches with AND/OR/NOT
+5.  **Explore Properties** - Use `note.` prefix for metadata searches
+6.  **Create Saved Searches** - Turn useful queries into dynamic collections
+7.  **Optimize Performance** - Learn about fast search and limits
+
+## Performance Tips
+
+*   **Use Fast Search** for attribute-only queries
+*   **Set Reasonable Limits** to prevent large result sets
+*   **Start Specific** with the most selective criteria first
+*   **Leverage Attributes** instead of content search when possible
+*   **Cache Common Queries** as saved searches
+
+## Need Help?
+
+*   **Examples**: Check [Search Examples and Use Cases](Search-Examples-and-Use-Cases.md) for practical patterns
+*   **Complex Queries**: See [Advanced Search Expressions](Advanced-Search-Expressions.md) for sophisticated techniques
+*   **Performance Issues**: Review [Technical Search Details](Technical-Search-Details.md) for optimization
+*   **Dynamic Collections**: Learn about [Saved Searches](Saved-Searches.md) for automated organization
+
+## Search Workflow Integration
+
+Trilium's search integrates seamlessly with your note-taking workflow:
+
+*   **Quick Search** (Ctrl+S) for instant access
+*   **Saved Searches** for dynamic organization
+*   **Search from Subtree** for focused queries
+*   **Auto-complete** suggestions in search dialogs
+*   **URL-triggered searches** for bookmarkable queries
+
+Start with the fundamentals and gradually explore advanced features as your needs grow. Trilium's search system is designed to scale from simple text queries to sophisticated knowledge management systems.
+
+Happy searching! 🔍
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Advanced Usage/Search/Saved-Searches.md b/docs/User Guide/User Guide/Advanced Usage/Search/Saved-Searches.md
new file mode 100644
index 0000000000..4b06ae0c79
--- /dev/null
+++ b/docs/User Guide/User Guide/Advanced Usage/Search/Saved-Searches.md	
@@ -0,0 +1,429 @@
+# Saved-Searches
+## Saved Searches
+
+Saved searches in Trilium allow you to create dynamic collections of notes that automatically update based on search criteria. They appear as special notes in your tree and provide a powerful way to organize and access related content.
+
+## Understanding Saved Searches
+
+A saved search is a special note type that:
+
+*   Stores search criteria and configuration
+*   Dynamically displays matching notes as children
+*   Updates automatically when notes change
+*   Can be bookmarked and accessed like any other note
+*   Supports all search features including ordering and limits
+
+## Creating Saved Searches
+
+### From Search Dialog
+
+1.  Open the search dialog (Ctrl+S or search icon)
+2.  Configure your search criteria and options
+3.  Click "Save to note" button
+4.  Choose a name and location for the saved search
+
+### Manual Creation
+
+1.  Create a new note and set its type to "Saved Search"
+2.  Configure the search using labels:
+    *   `#searchString` - The search query
+    *   `#fastSearch` - Enable fast search mode
+    *   `#includeArchivedNotes` - Include archived notes
+    *   `#orderBy` - Sort field
+    *   `#orderDirection` - "asc" or "desc"
+    *   `#limit` - Maximum number of results
+
+### Using Search Scripts
+
+For complex logic, create a JavaScript note and link it:
+
+*   `~searchScript` - Relation pointing to a backend script note
+
+## Basic Saved Search Examples
+
+### Simple Text Search
+
+```
+#searchString=project management
+```
+
+Finds all notes containing "project management".
+
+### Tag-Based Collection
+
+```
+#searchString=#book #author=Tolkien
+#orderBy=publicationYear
+#orderDirection=desc
+```
+
+Creates a collection of Tolkien's books ordered by publication year.
+
+### Task Dashboard
+
+```
+#searchString=#task #status!=completed #assignee=me
+#orderBy=priority
+#orderDirection=desc
+#limit=20
+```
+
+Shows your top 20 incomplete tasks by priority.
+
+### Recent Activity
+
+```
+#searchString=note.dateModified >= TODAY-7
+#orderBy=dateModified
+#orderDirection=desc
+#limit=50
+```
+
+Shows the 50 most recently modified notes from the last week.
+
+## Advanced Saved Search Patterns
+
+### Dynamic Date-Based Collections
+
+#### This Week's Content
+
+```
+#searchString=note.dateCreated >= TODAY-7 note.dateCreated < TODAY
+#orderBy=dateCreated
+#orderDirection=desc
+```
+
+#### Monthly Review Collection
+
+```
+#searchString=#reviewed=false note.dateCreated >= MONTH note.dateCreated < MONTH+1
+#orderBy=dateCreated
+```
+
+#### Upcoming Deadlines
+
+```
+#searchString=#dueDate >= TODAY #dueDate <= TODAY+14 #status!=completed
+#orderBy=dueDate
+#orderDirection=asc
+```
+
+### Project-Specific Collections
+
+#### Project Dashboard
+
+```
+#searchString=#project=alpha (#task OR #milestone OR #document)
+#orderBy=priority
+#orderDirection=desc
+```
+
+#### Project Health Monitor
+
+```
+#searchString=#project=alpha #status=blocked OR (#dueDate < TODAY #status!=completed)
+#orderBy=dueDate
+#orderDirection=asc
+```
+
+### Content Type Collections
+
+#### Documentation Hub
+
+```
+#searchString=(#documentation OR #guide OR #manual) #product=api
+#orderBy=dateModified
+#orderDirection=desc
+```
+
+#### Learning Path
+
+```
+#searchString=#course #level=beginner #topic=programming
+#orderBy=difficulty
+#orderDirection=asc
+```
+
+## Search Script Examples
+
+For complex logic that can't be expressed in search strings, use JavaScript:
+
+### Custom Business Logic
+
+```javascript
+// Find notes that need attention based on complex criteria
+const api = require('api');
+
+const cutoffDate = new Date();
+cutoffDate.setDate(cutoffDate.getDate() - 30);
+
+const results = [];
+
+// Find high-priority tasks overdue by more than a week
+const overdueTasks = api.searchForNotes(`
+    #task #priority=high #dueDate < TODAY-7 #status!=completed
+`);
+
+// Find projects with no recent activity
+const staleProjets = api.searchForNotes(`
+    #project #status=active note.dateModified < TODAY-30
+`);
+
+// Find notes with many attributes but no content
+const overlabeledNotes = api.searchForNotes(`
+    note.attributeCount > 5 note.contentSize < 100
+`);
+
+return [...overdueTasks, ...staleProjects, ...overlabeledNotes]
+    .map(note => note.noteId);
+```
+
+### Dynamic Tag-Based Grouping
+
+```javascript
+// Group notes by quarter based on creation date
+const api = require('api');
+
+const currentYear = new Date().getFullYear();
+const results = [];
+
+for (let quarter = 1; quarter <= 4; quarter++) {
+    const startMonth = (quarter - 1) * 3 + 1;
+    const endMonth = quarter * 3;
+    
+    const quarterNotes = api.searchForNotes(`
+        note.dateCreated >= "${currentYear}-${String(startMonth).padStart(2, '0')}-01"
+        note.dateCreated < "${currentYear}-${String(endMonth + 1).padStart(2, '0')}-01"
+        #project
+    `);
+    
+    results.push(...quarterNotes.map(note => note.noteId));
+}
+
+return results;
+```
+
+### Conditional Search Logic
+
+```javascript
+// Smart dashboard that changes based on day of week
+const api = require('api');
+
+const today = new Date();
+const dayOfWeek = today.getDay(); // 0 = Sunday, 1 = Monday, etc.
+
+let searchQuery;
+
+if (dayOfWeek === 1) { // Monday - weekly planning
+    searchQuery = '#task #status=planned #week=' + getWeekNumber(today);
+} else if (dayOfWeek === 5) { // Friday - weekly review
+    searchQuery = '#task #completed=true #week=' + getWeekNumber(today);
+} else { // Regular days - focus on today's work
+    searchQuery = '#task #dueDate=TODAY #status!=completed';
+}
+
+const notes = api.searchForNotes(searchQuery);
+return notes.map(note => note.noteId);
+
+function getWeekNumber(date) {
+    const firstDay = new Date(date.getFullYear(), 0, 1);
+    const pastDays = Math.floor((date - firstDay) / 86400000);
+    return Math.ceil((pastDays + firstDay.getDay() + 1) / 7);
+}
+```
+
+## Performance Optimization
+
+### Fast Search for Large Collections
+
+For collections that don't need content search:
+
+```
+#searchString=#category=reference #type=article
+#fastSearch=true
+#limit=100
+```
+
+### Efficient Ordering
+
+Use indexed properties for better performance:
+
+```
+#orderBy=dateCreated
+#orderBy=title
+#orderBy=noteId
+```
+
+Avoid complex calculated orderings in large collections.
+
+### Result Limiting
+
+Always set reasonable limits for large collections:
+
+```
+#limit=50
+```
+
+For very large result sets, consider breaking into multiple saved searches.
+
+## Saved Search Organization
+
+### Hierarchical Organization
+
+Create a folder structure for saved searches:
+
+```
+📁 Searches
+├── 📁 Projects
+│   ├── 🔍 Active Projects
+│   ├── 🔍 Overdue Tasks  
+│   └── 🔍 Project Archive
+├── 📁 Content
+│   ├── 🔍 Recent Drafts
+│   ├── 🔍 Published Articles
+│   └── 🔍 Review Queue
+└── 📁 Maintenance
+    ├── 🔍 Untagged Notes
+    ├── 🔍 Cleanup Candidates
+    └── 🔍 Orphaned Notes
+```
+
+### Search Naming Conventions
+
+Use clear, descriptive names:
+
+*   "Active High-Priority Tasks"
+*   "This Month's Meeting Notes"
+*   "Unprocessed Inbox Items"
+*   "Literature Review Papers"
+
+### Search Labels
+
+Tag saved searches for organization:
+
+```
+#searchType=dashboard
+#searchType=maintenance  
+#searchType=archive
+#frequency=daily
+#frequency=weekly
+```
+
+## Dashboard Creation
+
+### Personal Dashboard
+
+Combine multiple saved searches in a parent note:
+
+```
+📋 My Dashboard
+├── 🔍 Today's Tasks
+├── 🔍 Urgent Items
+├── 🔍 Recent Notes
+├── 🔍 Upcoming Deadlines
+└── 🔍 Weekly Review Items
+```
+
+### Project Dashboard
+
+```
+📋 Project Alpha Dashboard  
+├── 🔍 Active Tasks
+├── 🔍 Blocked Items
+├── 🔍 Recent Updates
+├── 🔍 Milestones
+└── 🔍 Team Notes
+```
+
+### Content Dashboard
+
+```
+📋 Content Management
+├── 🔍 Draft Articles
+├── 🔍 Review Queue
+├── 🔍 Published This Month
+├── 🔍 High-Engagement Posts
+└── 🔍 Content Ideas
+```
+
+## Maintenance and Updates
+
+### Regular Review
+
+Periodically review saved searches for:
+
+*   Outdated search criteria
+*   Performance issues
+*   Unused collections
+*   Scope creep
+
+### Search Evolution
+
+As your note-taking evolves, update searches:
+
+*   Add new tags to existing searches
+*   Refine criteria based on usage patterns
+*   Split large collections into smaller ones
+*   Merge rarely-used collections
+
+### Performance Monitoring
+
+Watch for performance issues:
+
+*   Slow-loading saved searches
+*   Memory usage with large result sets
+*   Search timeout errors
+
+## Troubleshooting
+
+### Common Issues
+
+#### Empty Results
+
+*   Check search syntax
+*   Verify tag spellings
+*   Ensure notes have required attributes
+*   Test search components individually
+
+#### Performance Problems
+
+*   Add `#fastSearch=true` for attribute-only searches
+*   Reduce result limits
+*   Simplify complex criteria
+*   Use indexed properties for ordering
+
+#### Unexpected Results
+
+*   Enable debug mode to see query parsing
+*   Test search in search dialog first
+*   Check for case sensitivity issues
+*   Verify date formats and ranges
+
+### Best Practices
+
+#### Search Design
+
+*   Start simple and add complexity gradually
+*   Test searches thoroughly before saving
+*   Document complex search logic
+*   Use meaningful names and descriptions
+
+#### Performance
+
+*   Set appropriate limits
+*   Use fast search when possible
+*   Avoid overly complex expressions
+*   Monitor search execution time
+
+#### Organization
+
+*   Group related searches
+*   Use consistent naming conventions
+*   Archive unused searches
+*   Regular cleanup and maintenance
+
+## Next Steps
+
+*   [Technical Search Details](Technical-Search-Details.md) - Understanding search performance and implementation
+*   [Search Examples and Use Cases](Search-Examples-and-Use-Cases.md) - More practical examples
+*   [Advanced Search Expressions](Advanced-Search-Expressions.md) - Complex query construction
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Advanced Usage/Search/Search-Examples-and-Use-Cases.md b/docs/User Guide/User Guide/Advanced Usage/Search/Search-Examples-and-Use-Cases.md
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--- /dev/null
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@@ -0,0 +1,539 @@
+# Search-Examples-and-Use-Cases
+## Search Examples and Use Cases
+
+This guide provides practical examples of how to use Trilium's search capabilities for common organizational patterns and workflows.
+
+## Personal Knowledge Management
+
+### Research and Learning
+
+Track your learning progress and find related materials:
+
+```
+#topic=javascript #status=learning
+```
+
+Find all JavaScript materials you're currently learning.
+
+```
+#course #completed=false note.dateCreated >= MONTH-1
+```
+
+Find courses started in the last month that aren't completed.
+
+```
+#book #topic *=* programming #rating >= 4
+```
+
+Find highly-rated programming books.
+
+```
+#paper ~author.title *=* "Andrew Ng" #field=machine-learning
+```
+
+Find machine learning papers by Andrew Ng.
+
+### Meeting and Event Management
+
+Organize meetings, notes, and follow-ups:
+
+```
+#meeting note.dateCreated >= TODAY-7 #attendee *=* smith
+```
+
+Find this week's meetings with Smith.
+
+```
+#meeting #actionItems #status!=completed
+```
+
+Find meetings with outstanding action items.
+
+```
+#event #date >= TODAY #date <= TODAY+30
+```
+
+Find upcoming events in the next 30 days.
+
+```
+#meeting #project=alpha note.dateCreated >= MONTH
+```
+
+Find this month's meetings about project alpha.
+
+### Note Organization and Cleanup
+
+Maintain and organize your note structure:
+
+```
+note.childrenCount = 0 note.parentCount = 1 note.contentSize < 50 note.dateModified < TODAY-180
+```
+
+Find small, isolated notes not modified in 6 months (cleanup candidates).
+
+```
+note.attributeCount = 0 note.type=text note.contentSize > 1000
+```
+
+Find large text notes without any labels (might need categorization).
+
+```
+#draft note.dateCreated < TODAY-30
+```
+
+Find old draft notes that might need attention.
+
+```
+note.parentCount > 3 note.type=text
+```
+
+Find notes that are heavily cloned (might indicate important content).
+
+## Project Management
+
+### Task Tracking
+
+Manage tasks and project progress:
+
+```
+#task #priority=high #status!=completed #assignee=me
+```
+
+Find your high-priority incomplete tasks.
+
+```
+#task #dueDate <= TODAY+3 #dueDate >= TODAY #status!=completed
+```
+
+Find tasks due in the next 3 days.
+
+```
+#project=website #task #status=blocked
+```
+
+Find blocked tasks in the website project.
+
+```
+#task #estimatedHours > 0 #actualHours > 0 orderBy note.dateModified desc
+```
+
+Find tasks with time tracking data, sorted by recent updates.
+
+### Project Oversight
+
+Monitor project health and progress:
+
+```
+#project #status=active note.children.labels.status = blocked
+```
+
+Find active projects with blocked tasks.
+
+```
+#project #startDate <= TODAY-90 #status!=completed
+```
+
+Find projects that started over 90 days ago but aren't completed.
+
+```
+#milestone #targetDate <= TODAY #status!=achieved
+```
+
+Find overdue milestones.
+
+```
+#project orderBy note.childrenCount desc limit 10
+```
+
+Find the 10 largest projects by number of sub-notes.
+
+### Resource Planning
+
+Track resources and dependencies:
+
+```
+#resource #type=person #availability < 50
+```
+
+Find people with low availability.
+
+```
+#dependency #status=pending #project=mobile-app
+```
+
+Find pending dependencies for the mobile app project.
+
+```
+#budget #project #spent > #allocated
+```
+
+Find projects over budget.
+
+## Content Creation and Writing
+
+### Writing Projects
+
+Manage articles, books, and documentation:
+
+```
+#article #status=draft #wordCount >= 1000
+```
+
+Find substantial draft articles.
+
+```
+#chapter #book=novel #status=outline
+```
+
+Find novel chapters still in outline stage.
+
+```
+#blog-post #published=false #topic=technology
+```
+
+Find unpublished technology blog posts.
+
+```
+#documentation #lastReviewed < TODAY-90 #product=api
+```
+
+Find API documentation not reviewed in 90 days.
+
+### Editorial Workflow
+
+Track editing and publication status:
+
+```
+#article #editor=jane #status=review
+```
+
+Find articles assigned to Jane for review.
+
+```
+#manuscript #submissionDate >= TODAY-30 #status=pending
+```
+
+Find manuscripts submitted in the last 30 days still pending.
+
+```
+#publication #acceptanceDate >= YEAR #status=accepted
+```
+
+Find accepted publications this year.
+
+### Content Research
+
+Organize research materials and sources:
+
+```
+#source #reliability >= 8 #topic *=* climate
+```
+
+Find reliable sources about climate topics.
+
+```
+#quote #author *=* Einstein #verified=true
+```
+
+Find verified Einstein quotes.
+
+```
+#citation #used=false #relevance=high
+```
+
+Find high-relevance citations not yet used.
+
+## Business and Professional Use
+
+### Client Management
+
+Track client relationships and projects:
+
+```
+#client=acme #project #status=active
+```
+
+Find active projects for ACME client.
+
+```
+#meeting #client #date >= MONTH #followUp=required
+```
+
+Find client meetings this month requiring follow-up.
+
+```
+#contract #renewalDate <= TODAY+60 #renewalDate >= TODAY
+```
+
+Find contracts expiring in the next 60 days.
+
+```
+#invoice #status=unpaid #dueDate < TODAY
+```
+
+Find overdue unpaid invoices.
+
+### Process Documentation
+
+Maintain procedures and workflows:
+
+```
+#procedure #department=engineering #lastUpdated < TODAY-365
+```
+
+Find engineering procedures not updated in a year.
+
+```
+#workflow #status=active #automation=possible
+```
+
+Find active workflows that could be automated.
+
+```
+#checklist #process=onboarding #role=developer
+```
+
+Find onboarding checklists for developers.
+
+### Compliance and Auditing
+
+Track compliance requirements and audits:
+
+```
+#compliance #standard=sox #nextReview <= TODAY+30
+```
+
+Find SOX compliance items due for review soon.
+
+```
+#audit #finding #severity=high #status!=resolved
+```
+
+Find unresolved high-severity audit findings.
+
+```
+#policy #department=hr #effectiveDate >= YEAR
+```
+
+Find HR policies that became effective this year.
+
+## Academic and Educational Use
+
+### Course Management
+
+Organize courses and educational content:
+
+```
+#course #semester=fall-2024 #assignment #dueDate >= TODAY
+```
+
+Find upcoming assignments for fall 2024 courses.
+
+```
+#lecture #course=physics #topic *=* quantum
+```
+
+Find physics lectures about quantum topics.
+
+```
+#student #grade < 70 #course=mathematics
+```
+
+Find students struggling in mathematics.
+
+```
+#syllabus #course #lastUpdated < TODAY-180
+```
+
+Find syllabi not updated in 6 months.
+
+### Research Management
+
+Track research projects and publications:
+
+```
+#experiment #status=running #endDate <= TODAY+7
+```
+
+Find experiments ending in the next week.
+
+```
+#dataset #size > 1000000 #cleaned=true #public=false
+```
+
+Find large, cleaned, private datasets.
+
+```
+#hypothesis #tested=false #priority=high
+```
+
+Find high-priority untested hypotheses.
+
+```
+#collaboration #institution *=* stanford #status=active
+```
+
+Find active collaborations with Stanford.
+
+### Grant and Funding
+
+Manage funding applications and requirements:
+
+```
+#grant #deadline <= TODAY+30 #deadline >= TODAY #status=in-progress
+```
+
+Find grant applications due in the next 30 days.
+
+```
+#funding #amount >= 100000 #status=awarded #startDate >= YEAR
+```
+
+Find large grants awarded this year.
+
+```
+#report #funding #dueDate <= TODAY+14 #status!=submitted
+```
+
+Find funding reports due in 2 weeks.
+
+## Technical Documentation
+
+### Code and Development
+
+Track code-related notes and documentation:
+
+```
+#bug #severity=critical #status!=fixed #product=webapp
+```
+
+Find critical unfixed bugs in the web app.
+
+```
+#feature #version=2.0 #status=implemented #tested=false
+```
+
+Find version 2.0 features that are implemented but not tested.
+
+```
+#api #endpoint #deprecated=true #removalDate <= TODAY+90
+```
+
+Find deprecated API endpoints scheduled for removal soon.
+
+```
+#architecture #component=database #lastReviewed < TODAY-180
+```
+
+Find database architecture documentation not reviewed in 6 months.
+
+### System Administration
+
+Manage infrastructure and operations:
+
+```
+#server #status=maintenance #scheduledDate >= TODAY #scheduledDate <= TODAY+7
+```
+
+Find servers scheduled for maintenance this week.
+
+```
+#backup #status=failed #date >= TODAY-7
+```
+
+Find backup failures in the last week.
+
+```
+#security #vulnerability #severity=high #patched=false
+```
+
+Find unpatched high-severity vulnerabilities.
+
+```
+#monitoring #alert #frequency > 10 #period=week
+```
+
+Find alerts triggering more than 10 times per week.
+
+## Data Analysis and Reporting
+
+### Performance Tracking
+
+Monitor metrics and KPIs:
+
+```
+#metric #kpi=true #trend=declining #period=month
+```
+
+Find declining monthly KPIs.
+
+```
+#report #frequency=weekly #lastGenerated < TODAY-10
+```
+
+Find weekly reports that haven't been generated in 10 days.
+
+```
+#dashboard #stakeholder=executive #lastUpdated < TODAY-7
+```
+
+Find executive dashboards not updated this week.
+
+### Trend Analysis
+
+Track patterns and changes over time:
+
+```
+#data #source=sales #period=quarter #analyzed=false
+```
+
+Find unanalyzed quarterly sales data.
+
+```
+#trend #direction=up #significance=high #period=month
+```
+
+Find significant positive monthly trends.
+
+```
+#forecast #accuracy < 80 #model=linear #period=quarter
+```
+
+Find inaccurate quarterly linear forecasts.
+
+## Search Strategy Tips
+
+### Building Effective Queries
+
+1.  **Start Specific**: Begin with the most selective criteria
+2.  **Add Gradually**: Build complexity incrementally
+3.  **Test Components**: Verify each part of complex queries
+4.  **Use Shortcuts**: Leverage `#` and `~` shortcuts for efficiency
+
+### Performance Optimization
+
+1.  **Use Fast Search**: For large databases, enable fast search when content isn't needed
+2.  **Limit Results**: Add limits to prevent overwhelming result sets
+3.  **Order Strategically**: Put the most useful results first
+4.  **Cache Common Queries**: Save frequently used searches
+
+### Maintenance Patterns
+
+Regular queries for note maintenance:
+
+```
+# Weekly cleanup check
+note.attributeCount = 0 note.type=text note.contentSize < 100 note.dateModified < TODAY-30
+
+# Monthly project review  
+#project #status=active note.dateModified < TODAY-30
+
+# Quarterly archive review
+note.isArchived=false note.dateModified < TODAY-90 note.childrenCount = 0
+```
+
+## Next Steps
+
+*   [Saved Searches](Saved-Searches.md) - Convert these examples into reusable saved searches
+*   [Technical Search Details](Technical-Search-Details.md) - Understanding performance and implementation
+*   [Search Fundamentals](Search-Fundamentals.md) - Review basic concepts and syntax
\ No newline at end of file
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+# Search-Fundamentals
+## Search Fundamentals
+
+Trilium's search system is a powerful tool for finding and organizing notes. It supports multiple search modes, from simple text queries to complex expressions using attributes, relationships, and note properties.
+
+## Search Types Overview
+
+Trilium provides three main search approaches:
+
+1.  **Full-text Search** - Searches within note titles and content
+2.  **Attribute Search** - Searches based on labels and relations attached to notes
+3.  **Property Search** - Searches based on note metadata (type, creation date, etc.)
+
+These can be combined in powerful ways to create precise queries.
+
+## Basic Search Syntax
+
+### Simple Text Search
+
+```
+hello world
+```
+
+Finds notes containing both "hello" and "world" anywhere in the title or content.
+
+### Quoted Text Search
+
+```
+"hello world"
+```
+
+Finds notes containing the exact phrase "hello world".
+
+### Attribute Search
+
+```
+#tag
+```
+
+Finds notes with the label "tag".
+
+```
+#category=book
+```
+
+Finds notes with label "category" set to "book".
+
+### Relation Search
+
+```
+~author
+```
+
+Finds notes with a relation named "author".
+
+```
+~author.title=Tolkien
+```
+
+Finds notes with an "author" relation pointing to a note titled "Tolkien".
+
+## Search Operators
+
+### Text Operators
+
+*   `=` - Exact match
+*   `!=` - Not equal
+*   `*=*` - Contains (substring)
+*   `=*` - Starts with
+*   `*=` - Ends with
+*   `%=` - Regular expression match
+*   `~=` - Fuzzy exact match
+*   `~*` - Fuzzy contains match
+
+### Numeric Operators
+
+*   `=` - Equal
+*   `!=` - Not equal
+*   `>` - Greater than
+*   `>=` - Greater than or equal
+*   `<` - Less than
+*   `<=` - Less than or equal
+
+### Boolean Operators
+
+*   `AND` - Both conditions must be true
+*   `OR` - Either condition must be true
+*   `NOT` or `not()` - Condition must be false
+
+## Search Context and Scope
+
+### Search Scope
+
+By default, search covers:
+
+*   Note titles
+*   Note content (for text-based note types)
+*   Label names and values
+*   Relation names
+*   Note properties
+
+### Fast Search Mode
+
+When enabled, fast search:
+
+*   Searches only titles and attributes
+*   Skips note content
+*   Provides faster results for large databases
+
+### Archived Notes
+
+*   Excluded by default
+*   Can be included with "Include archived" option
+
+## Case Sensitivity and Normalization
+
+*   All searches are case-insensitive
+*   Diacritics are normalized ("café" matches "cafe")
+*   Unicode characters are properly handled
+
+## Performance Considerations
+
+### Content Size Limits
+
+*   Note content is limited to 10MB for search processing
+*   Larger notes are still searchable by title and attributes
+
+### Progressive Search Strategy
+
+1.  **Exact Search Phase**: Fast exact matching (handles 90%+ of searches)
+2.  **Fuzzy Search Phase**: Activated when exact search returns fewer than 5 high-quality results
+3.  **Result Ordering**: Exact matches always appear before fuzzy matches
+
+### Search Optimization Tips
+
+*   Use specific terms rather than very common words
+*   Combine full-text with attribute searches for precision
+*   Use fast search for large databases when content search isn't needed
+*   Limit results when dealing with very large result sets
+
+## Special Characters and Escaping
+
+### Reserved Characters
+
+These characters have special meaning in search queries:
+
+*   `#` - Label indicator
+*   `~` - Relation indicator
+*   `()` - Grouping
+*   `"` `'` `` ` `` - Quotes for exact phrases
+
+### Escaping Special Characters
+
+Use backslash to search for literal special characters:
+
+```
+\#hashtag
+```
+
+Searches for the literal text "#hashtag" instead of a label.
+
+Use quotes to include special characters in phrases:
+
+```
+"note.txt file"
+```
+
+Searches for the exact phrase including the dot.
+
+## Date and Time Values
+
+### Special Date Keywords
+
+*   `TODAY` - Current date
+*   `NOW` - Current date and time
+*   `MONTH` - Current month
+*   `YEAR` - Current year
+
+### Date Arithmetic
+
+```
+#dateCreated >= TODAY-30
+```
+
+Finds notes created in the last 30 days.
+
+```
+#eventDate = YEAR+1
+```
+
+Finds notes with eventDate set to next year.
+
+## Search Results and Scoring
+
+### Result Ranking
+
+Results are ordered by:
+
+1.  Relevance score (based on term frequency and position)
+2.  Note depth (closer to root ranks higher)
+3.  Alphabetical order for ties
+
+### Progressive Search Behavior
+
+*   Exact matches always rank before fuzzy matches
+*   High-quality exact matches prevent fuzzy search activation
+*   Fuzzy matches help find content with typos or variations
+
+## Next Steps
+
+*   [Advanced Search Expressions](Advanced-Search-Expressions.md) - Complex queries and combinations
+*   [Search Examples and Use Cases](Search-Examples-and-Use-Cases.md) - Practical applications
+*   [Saved Searches](Saved-Searches.md) - Creating dynamic collections
+*   [Technical Search Details](Technical-Search-Details.md) - Under-the-hood implementation
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Advanced Usage/Search/Technical-Search-Details.md b/docs/User Guide/User Guide/Advanced Usage/Search/Technical-Search-Details.md
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+# Technical-Search-Details
+## Technical Search Details
+
+This guide provides technical information about Trilium's search implementation, performance characteristics, and optimization strategies for power users and administrators.
+
+## Search Architecture Overview
+
+### Three-Layer Search System
+
+Trilium's search operates across three cache layers:
+
+1.  **Becca (Backend Cache)**: Server-side entity cache containing notes, attributes, and relationships
+2.  **Froca (Frontend Cache)**: Client-side mirror providing fast UI updates
+3.  **Database Layer**: SQLite database with FTS (Full-Text Search) support
+
+### Search Processing Pipeline
+
+1.  **Lexical Analysis**: Query parsing and tokenization
+2.  **Expression Building**: Converting tokens to executable expressions
+3.  **Progressive Execution**: Exact search followed by optional fuzzy search
+4.  **Result Scoring**: Relevance calculation and ranking
+5.  **Result Presentation**: Formatting and highlighting
+
+## Query Processing Details
+
+### Lexical Analysis (Lex)
+
+The lexer breaks down search queries into components:
+
+```javascript
+// Input: 'project #status=active note.dateCreated >= TODAY-7'
+// Output:
+{
+  fulltextTokens: ['project'],
+  expressionTokens: ['#status', '=', 'active', 'note', '.', 'dateCreated', '>=', 'TODAY-7']
+}
+```
+
+#### Token Types
+
+*   **Fulltext Tokens**: Regular search terms
+*   **Expression Tokens**: Attributes, operators, and property references
+*   **Quoted Strings**: Exact phrase matches
+*   **Escaped Characters**: Literal special characters
+
+### Expression Building (Parse)
+
+Tokens are converted into executable expression trees:
+
+```javascript
+// Expression tree for: #book AND #author=Tolkien
+AndExp([
+  AttributeExistsExp('label', 'book'),
+  LabelComparisonExp('label', 'author', equals('tolkien'))
+])
+```
+
+#### Expression Types
+
+*   `AndExp`, `OrExp`, `NotExp`: Boolean logic
+*   `AttributeExistsExp`: Label/relation existence
+*   `LabelComparisonExp`: Label value comparison
+*   `RelationWhereExp`: Relation target queries
+*   `PropertyComparisonExp`: Note property filtering
+*   `NoteContentFulltextExp`: Content search
+*   `OrderByAndLimitExp`: Result ordering and limiting
+
+### Progressive Search Strategy
+
+#### Phase 1: Exact Search
+
+```javascript
+// Fast exact matching
+const exactResults = performSearch(expression, searchContext, false);
+```
+
+Characteristics:
+
+*   Substring matching for text
+*   Exact attribute matching
+*   Property-based filtering
+*   Handles 90%+ of searches
+*   Sub-second response time
+
+#### Phase 2: Fuzzy Fallback
+
+```javascript
+// Activated when exact results < 5 high-quality matches
+if (highQualityResults.length < 5) {
+  const fuzzyResults = performSearch(expression, searchContext, true);
+  return mergeExactAndFuzzyResults(exactResults, fuzzyResults);
+}
+```
+
+Characteristics:
+
+*   Edit distance calculations
+*   Phrase proximity matching
+*   Typo tolerance
+*   Performance safeguards
+*   Exact matches always rank first
+
+## Performance Characteristics
+
+### Search Limits and Thresholds
+
+| Parameter | Value | Purpose |
+| --- | --- | --- |
+| `MAX_SEARCH_CONTENT_SIZE` | 2MB | Database-level content filtering |
+| `MIN_FUZZY_TOKEN_LENGTH` | 3 chars | Minimum length for fuzzy matching |
+| `MAX_EDIT_DISTANCE` | 2 chars | Maximum character changes for fuzzy |
+| `MAX_PHRASE_PROXIMITY` | 10 words | Maximum distance for phrase matching |
+| `RESULT_SUFFICIENCY_THRESHOLD` | 5 results | Threshold for fuzzy activation |
+| `ABSOLUTE_MAX_CONTENT_SIZE` | 100MB | Hard limit to prevent system crash |
+| `ABSOLUTE_MAX_WORD_COUNT` | 2M words | Hard limit for word processing |
+
+### Performance Optimization
+
+#### Database-Level Optimizations
+
+```mariadb
+-- Content size filtering at database level
+SELECT noteId, type, mime, content, isProtected
+FROM notes JOIN blobs USING (blobId)
+WHERE type IN ('text', 'code', 'mermaid', 'canvas', 'mindMap') 
+  AND isDeleted = 0 
+  AND LENGTH(content) < 2097152  -- 2MB limit
+```
+
+#### Memory Management
+
+*   Single-array edit distance calculation
+*   Early termination for distant matches
+*   Progressive content processing
+*   Cached regular expressions
+
+#### Search Context Optimization
+
+```javascript
+// Efficient search context configuration
+const searchContext = new SearchContext({
+  fastSearch: true,           // Skip content search
+  limit: 50,                 // Reasonable result limit
+  orderBy: 'dateCreated',    // Use indexed property
+  includeArchivedNotes: false // Reduce search space
+});
+```
+
+## Fuzzy Search Implementation
+
+### Edit Distance Algorithm
+
+Trilium uses an optimized Levenshtein distance calculation:
+
+```javascript
+// Optimized single-array implementation
+function calculateOptimizedEditDistance(str1, str2, maxDistance) {
+  // Early termination checks
+  if (Math.abs(str1.length - str2.length) > maxDistance) {
+    return maxDistance + 1;
+  }
+  
+  // Single array optimization
+  let previousRow = Array.from({ length: str2.length + 1 }, (_, i) => i);
+  let currentRow = new Array(str2.length + 1);
+  
+  for (let i = 1; i <= str1.length; i++) {
+    currentRow[0] = i;
+    let minInRow = i;
+    
+    for (let j = 1; j <= str2.length; j++) {
+      const cost = str1[i - 1] === str2[j - 1] ? 0 : 1;
+      currentRow[j] = Math.min(
+        previousRow[j] + 1,        // deletion
+        currentRow[j - 1] + 1,     // insertion
+        previousRow[j - 1] + cost  // substitution
+      );
+      minInRow = Math.min(minInRow, currentRow[j]);
+    }
+    
+    // Early termination if row minimum exceeds threshold
+    if (minInRow > maxDistance) return maxDistance + 1;
+    
+    [previousRow, currentRow] = [currentRow, previousRow];
+  }
+  
+  return previousRow[str2.length];
+}
+```
+
+### Phrase Proximity Matching
+
+For multi-token fuzzy searches:
+
+```javascript
+// Check if tokens appear within reasonable proximity
+function hasProximityMatch(tokenPositions, maxDistance = 10) {
+  // For 2 tokens, simple distance check
+  if (tokenPositions.length === 2) {
+    const [pos1, pos2] = tokenPositions;
+    return pos1.some(p1 => pos2.some(p2 => Math.abs(p1 - p2) <= maxDistance));
+  }
+  
+  // For multiple tokens, find sequence within range
+  const findSequence = (remaining, currentPos) => {
+    if (remaining.length === 0) return true;
+    const [nextPositions, ...rest] = remaining;
+    return nextPositions.some(pos => 
+      Math.abs(pos - currentPos) <= maxDistance && 
+      findSequence(rest, pos)
+    );
+  };
+  
+  const [firstPositions, ...rest] = tokenPositions;
+  return firstPositions.some(startPos => findSequence(rest, startPos));
+}
+```
+
+## Indexing and Storage
+
+### Database Schema Optimization
+
+```mariadb
+-- Relevant indexes for search performance
+CREATE INDEX idx_notes_type ON notes(type);
+CREATE INDEX idx_notes_isDeleted ON notes(isDeleted);
+CREATE INDEX idx_notes_dateCreated ON notes(dateCreated);
+CREATE INDEX idx_notes_dateModified ON notes(dateModified);
+CREATE INDEX idx_attributes_name ON attributes(name);
+CREATE INDEX idx_attributes_type ON attributes(type);
+CREATE INDEX idx_attributes_value ON attributes(value);
+```
+
+### Content Processing
+
+Notes are processed differently based on type:
+
+```javascript
+// Content preprocessing by note type
+function preprocessContent(content, type, mime) {
+  content = normalize(content.toString());
+  
+  if (type === "text" && mime === "text/html") {
+    content = stripTags(content);
+    content = content.replace(/&nbsp;/g, " ");
+  } else if (type === "mindMap" && mime === "application/json") {
+    content = processMindmapContent(content);
+  } else if (type === "canvas" && mime === "application/json") {
+    const canvasData = JSON.parse(content);
+    const textElements = canvasData.elements
+      .filter(el => el.type === "text" && el.text)
+      .map(el => el.text);
+    content = normalize(textElements.join(" "));
+  }
+  
+  return content.trim();
+}
+```
+
+## Search Result Processing
+
+### Scoring Algorithm
+
+Results are scored based on multiple factors:
+
+```javascript
+function computeScore(fulltextQuery, highlightedTokens, enableFuzzyMatching) {
+  let score = 0;
+  
+  // Title matches get higher score
+  if (this.noteTitle.toLowerCase().includes(fulltextQuery.toLowerCase())) {
+    score += 10;
+  }
+  
+  // Path matches (hierarchical context)
+  const pathMatch = this.notePathArray.some(pathNote => 
+    pathNote.title.toLowerCase().includes(fulltextQuery.toLowerCase())
+  );
+  if (pathMatch) score += 5;
+  
+  // Attribute matches
+  score += this.attributeMatches * 3;
+  
+  // Content snippet quality
+  if (this.contentSnippet && this.contentSnippet.length > 0) {
+    score += 2;
+  }
+  
+  // Fuzzy match penalty
+  if (enableFuzzyMatching && this.isFuzzyMatch) {
+    score *= 0.8; // 20% penalty for fuzzy matches
+  }
+  
+  return score;
+}
+```
+
+### Result Merging
+
+Exact and fuzzy results are carefully merged:
+
+```javascript
+function mergeExactAndFuzzyResults(exactResults, fuzzyResults) {
+  // Deduplicate - exact results take precedence
+  const exactNoteIds = new Set(exactResults.map(r => r.noteId));
+  const additionalFuzzyResults = fuzzyResults.filter(r => 
+    !exactNoteIds.has(r.noteId)
+  );
+  
+  // Sort within each category
+  exactResults.sort(byScoreAndDepth);
+  additionalFuzzyResults.sort(byScoreAndDepth);
+  
+  // CRITICAL: Exact matches always come first
+  return [...exactResults, ...additionalFuzzyResults];
+}
+```
+
+## Performance Monitoring
+
+### Search Metrics
+
+Monitor these performance indicators:
+
+```javascript
+// Performance tracking
+const searchMetrics = {
+  totalQueries: 0,
+  exactSearchTime: 0,
+  fuzzySearchTime: 0,
+  resultCount: 0,
+  cacheHitRate: 0,
+  slowQueries: [] // queries taking > 1 second
+};
+```
+
+### Memory Usage
+
+Track memory consumption:
+
+```javascript
+// Memory monitoring
+const memoryMetrics = {
+  searchCacheSize: 0,
+  activeSearchContexts: 0,
+  largeContentNotes: 0, // notes > 1MB
+  indexSize: 0
+};
+```
+
+### Query Complexity Analysis
+
+Identify expensive queries:
+
+```javascript
+// Query complexity factors
+const complexityFactors = {
+  tokenCount: query.split(' ').length,
+  hasRegex: query.includes('%='),
+  hasFuzzy: query.includes('~=') || query.includes('~*'),
+  hasRelationTraversal: query.includes('.relations.'),
+  hasNestedProperties: (query.match(/\./g) || []).length > 2,
+  hasOrderBy: query.includes('orderBy'),
+  estimatedResultSize: 'unknown'
+};
+```
+
+## Troubleshooting Performance Issues
+
+### Common Performance Problems
+
+#### Slow Full-Text Search
+
+```javascript
+// Diagnosis
+- Check note content sizes
+- Verify content type filtering
+- Monitor regex usage
+- Review fuzzy search activation
+
+// Solutions
+- Enable fast search for attribute-only queries
+- Add content size limits
+- Optimize regex patterns
+- Tune fuzzy search thresholds
+```
+
+#### Memory Issues
+
+```javascript
+// Diagnosis
+- Monitor result set sizes
+- Check for large content processing
+- Review search context caching
+- Identify memory leaks
+
+// Solutions
+- Add result limits
+- Implement progressive loading
+- Clear unused search contexts
+- Optimize content preprocessing
+```
+
+#### High CPU Usage
+
+```javascript
+// Diagnosis
+- Profile fuzzy search operations
+- Check edit distance calculations
+- Monitor regex compilation
+- Review phrase proximity matching
+
+// Solutions
+- Increase minimum fuzzy token length
+- Reduce maximum edit distance
+- Cache compiled regexes
+- Limit phrase proximity distance
+```
+
+### Debugging Tools
+
+#### Debug Mode
+
+Enable search debugging:
+
+```javascript
+// Search context with debugging
+const searchContext = new SearchContext({
+  debug: true // Logs expression parsing and execution
+});
+```
+
+Output includes:
+
+*   Token parsing results
+*   Expression tree structure
+*   Execution timing
+*   Result scoring details
+
+#### Performance Profiling
+
+```javascript
+// Manual performance measurement
+const startTime = Date.now();
+const results = searchService.findResultsWithQuery(query, searchContext);
+const endTime = Date.now();
+console.log(`Search took ${endTime - startTime}ms for ${results.length} results`);
+```
+
+#### Query Analysis
+
+```javascript
+// Analyze query complexity
+function analyzeQuery(query) {
+  return {
+    tokenCount: query.split(/\s+/).length,
+    hasAttributes: /#|\~/.test(query),
+    hasProperties: /note\./.test(query),
+    hasRegex: /%=/.test(query),
+    hasFuzzy: /~[=*]/.test(query),
+    complexity: calculateComplexityScore(query)
+  };
+}
+```
+
+## Configuration and Tuning
+
+### Server Configuration
+
+Relevant settings in `config.ini`:
+
+```toml
+# Search-related settings
+[Search]
+maxContentSize=2097152          # 2MB content limit
+minFuzzyTokenLength=3          # Minimum chars for fuzzy
+maxEditDistance=2              # Edit distance limit
+resultSufficiencyThreshold=5   # Fuzzy activation threshold
+enableProgressiveSearch=true   # Enable progressive strategy
+cacheSearchResults=true        # Cache frequent searches
+
+# Performance settings
+[Performance]
+searchTimeoutMs=30000         # 30 second search timeout
+maxSearchResults=1000         # Hard limit on results
+enableSearchProfiling=false   # Performance logging
+```
+
+### Runtime Tuning
+
+Adjust search behavior programmatically:
+
+```javascript
+// Dynamic configuration
+const searchConfig = {
+  maxContentSize: 1024 * 1024,  // 1MB for faster processing
+  enableFuzzySearch: false,      // Exact only for speed
+  resultLimit: 50,               // Smaller result sets
+  useIndexedPropertiesOnly: true // Skip expensive calculations
+};
+```
+
+## Best Practices for Performance
+
+### Query Design
+
+1.  **Start Specific**: Use selective criteria first
+2.  **Limit Results**: Always set reasonable limits
+3.  **Use Indexes**: Prefer indexed properties for ordering
+4.  **Avoid Regex**: Use simple operators when possible
+5.  **Cache Common Queries**: Save frequently used searches
+
+### System Administration
+
+1.  **Monitor Performance**: Track slow queries and memory usage
+2.  **Regular Maintenance**: Clean up unused notes and attributes
+3.  **Index Optimization**: Ensure database indexes are current
+4.  **Content Management**: Archive or compress large content
+
+### Development Guidelines
+
+1.  **Test Performance**: Benchmark complex queries
+2.  **Profile Regularly**: Identify performance regressions
+3.  **Optimize Incrementally**: Make small, measured improvements
+4.  **Document Complexity**: Note expensive operations
+
+## Advanced Configuration
+
+### Custom Search Extensions
+
+Extend search functionality with custom expressions:
+
+```javascript
+// Custom expression example
+class CustomDateRangeExp extends Expression {
+  constructor(dateField, startDate, endDate) {
+    super();
+    this.dateField = dateField;
+    this.startDate = startDate;
+    this.endDate = endDate;
+  }
+  
+  execute(inputNoteSet, executionContext, searchContext) {
+    // Custom logic for date range filtering
+    // with optimized performance characteristics
+  }
+}
+```
+
+### Search Result Caching
+
+Implement result caching for frequent queries:
+
+```javascript
+// Simple LRU cache for search results
+class SearchResultCache {
+  constructor(maxSize = 100) {
+    this.cache = new Map();
+    this.maxSize = maxSize;
+  }
+  
+  get(queryKey) {
+    if (this.cache.has(queryKey)) {
+      // Move to end (most recently used)
+      const value = this.cache.get(queryKey);
+      this.cache.delete(queryKey);
+      this.cache.set(queryKey, value);
+      return value;
+    }
+    return null;
+  }
+  
+  set(queryKey, results) {
+    if (this.cache.size >= this.maxSize) {
+      // Remove least recently used
+      const firstKey = this.cache.keys().next().value;
+      this.cache.delete(firstKey);
+    }
+    this.cache.set(queryKey, results);
+  }
+}
+```
+
+## Next Steps
+
+*   [Search Fundamentals](Search-Fundamentals.md) - Basic concepts and syntax
+*   [Advanced Search Expressions](Advanced-Search-Expressions.md) - Complex query construction
+*   [Search Examples and Use Cases](Search-Examples-and-Use-Cases.md) - Practical applications
+*   [Saved Searches](Saved-Searches.md) - Creating dynamic collections
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation.md
new file mode 100644
index 0000000000..d9e82ba939
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation.md	
@@ -0,0 +1,74 @@
+# Server Installation
+Running Trilium on a server lets you access your notes from any device through a web browser and enables synchronization between multiple Trilium instances. This guide covers the different ways to install and configure Trilium on your server.
+
+## Choose Your Installation Method
+
+The easiest way to get started is with Docker, which works on most systems and architectures. If you prefer not to manage your own server, PikaPods offers managed hosting.
+
+**Recommended approaches:**
+
+*   [Docker Installation](1_Server%20Installation/1.%20Installing%20the%20server/Using%20Docker.md) - Works on AMD64 and ARM architectures
+*   [PikaPods managed hosting](https://www.pikapods.com/pods?run=trilium-next) - No server management required
+*   [Packaged Server Installation](1_Server%20Installation/1.%20Installing%20the%20server/Packaged%20version%20for%20Linux.md) - Native Linux packages
+
+**Advanced options:**
+
+*   [Manual Installation](1_Server%20Installation/1.%20Installing%20the%20server/Manually.md) - Full control over the setup
+*   [Kubernetes](1_Server%20Installation/1.%20Installing%20the%20server/Using%20Kubernetes.md) - For container orchestration
+*   [NixOS Module](1_Server%20Installation/1.%20Installing%20the%20server/On%20NixOS.md) - Declarative configuration
+
+All server installations include both desktop and mobile web interfaces.
+
+## Configuration
+
+Trilium stores its configuration in a `config.ini` file located in the [data directory](#root/dvbMBRXYMM2G). To customize your installation, copy the sample configuration file and modify it:
+
+```sh
+cp config-sample.ini config.ini
+```
+
+You can also use environment variables instead of the config file. This is particularly useful for Docker deployments. See the [configuration guide](#root/SneMubD5wTR6) for all available options.
+
+### Changing the Data Directory
+
+To store Trilium's data (database, config, backups) in a custom location, set the `TRILIUM_DATA_DIR` environment variable:
+
+```sh
+export TRILIUM_DATA_DIR=/path/to/your/trilium-data
+```
+
+### Upload Size Limits
+
+By default, Trilium limits file uploads to 250MB. You can adjust this limit based on your needs:
+
+```sh
+# Increase limit to 450MB
+export MAX_ALLOWED_FILE_SIZE_MB=450
+
+# Remove limit entirely (use with caution)
+export TRILIUM_NO_UPLOAD_LIMIT=true
+```
+
+### Disabling Authentication
+
+See <a class="reference-link" href="1_Server%20Installation/Authentication.md">Authentication</a>.
+
+## Reverse Proxy Setup
+
+If you want to access Trilium through a domain name or alongside other web services, you'll need to configure a reverse proxy. Here's a basic nginx configuration:
+
+```nginx
+location /trilium/ {
+    proxy_pass http://127.0.0.1:8080/;
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection 'upgrade';
+    proxy_set_header Host $host;
+    proxy_cache_bypass $http_upgrade;
+}
+
+# Allow larger file uploads (in server block)
+client_max_body_size 0;  # 0 = unlimited
+```
+
+For Apache configuration, see the [Apache proxy setup](1_Server%20Installation/2.%20Reverse%20proxy/Apache.md) guide.
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Manually.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Manually.md
new file mode 100644
index 0000000000..580892b5cb
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Manually.md	
@@ -0,0 +1,65 @@
+# Manually
+> [!WARNING]
+> This page describes manually installing Trilium on your server. **Note that this is a not well supported way to install Trilium, problems may appear, information laid out here is quite out of date. It is recommended to use either** <a class="reference-link" href="Using%20Docker.md">Docker Server Installation</a> **or** <a class="reference-link" href="Packaged%20version%20for%20Linux.md">Packaged server installation</a>**.**
+
+## Requirements
+
+Trilium is a node.js application. Supported (tested) version of node.js is latest 14.X.X and 16.X.X. Trilium might work with older versions as well.
+
+You can check your node version with this command (node.js needs to be installed):
+
+```
+node --version
+```
+
+If your Linux distribution has only an outdated version of node.js, you can take a look at the installation instruction on node.js website, which covers most popular distributions.
+
+### Dependencies
+
+There are some dependencies required. You can see command for Debian and its derivatives (like Ubuntu) below:
+
+```
+sudo apt install libpng16-16 libpng-dev pkg-config autoconf libtool build-essential nasm libx11-dev libxkbfile-dev
+```
+
+## Installation
+
+### Download
+
+You can either download source code zip/tar from [https://github.com/TriliumNext/Trilium/releases/latest](https://github.com/TriliumNext/Trilium/releases/latest).
+
+For the latest version including betas, clone Git repository **from** `main` **branch** with:
+
+```
+git clone -b main https://github.com/triliumnext/trilium.git
+```
+
+## Installation
+
+```
+cd trilium
+
+# download all node dependencies
+npm install
+
+# make sure the better-sqlite3 binary is there
+npm rebuild
+
+# bundles & minifies frontend JavaScript
+npm run webpack
+```
+
+## Run
+
+```
+cd trilium
+
+# using nohup to make sure trilium keeps running after user logs out
+nohup TRILIUM_ENV=dev node src/www &
+```
+
+The application by default starts up on port 8080, so you can open your browser and navigate to [http://localhost:8080](http://localhost:8080) to access Trilium (replace "localhost" with your hostname).
+
+## TLS
+
+Don't forget to [configure TLS](../TLS%20Configuration.md) which is required for secure usage!
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Multiple server instances.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Multiple server instances.md
new file mode 100644
index 0000000000..11d2348c8c
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Multiple server instances.md	
@@ -0,0 +1,22 @@
+# Multiple server instances
+Trilium does not support multiple users. In order to have two or more persons with their own set of notes, multiple server instances must be set up. It is also not possible to use multiple [sync](#root/KFhm9yCthQOh) servers.
+
+To allow multiple server instances on a single physical server:
+
+*   For <a class="reference-link" href="Packaged%20version%20for%20Linux.md">Packaged version for Linux</a> or <a class="reference-link" href="Manually.md">Manually</a>, if starting the server manually just specify a different port and data directory per instance:
+    
+    ```
+    TRILIUM_NETWORK_PORT=8080 TRILIUM_DATA_DIR=/path/to/your/data-dir-A /opt/trilium/trilium.sh
+    ```
+    
+    For a second instance:
+    
+    ```
+    TRILIUM_NETWORK_PORT=8081 TRILIUM_DATA_DIR=/path/to/your/data-dir-B /opt/trilium/trilium.sh
+    ```
+    
+    If using `systemd`, then set the [environment variables in the service configuration](https://serverfault.com/questions/413397/how-to-set-environment-variable-in-systemd-service).
+*   For <a class="reference-link" href="Using%20Docker.md">Using Docker</a>, simply use two different containers, each with their own port binding and data directory.
+*   For <a class="reference-link" href="On%20NixOS.md">On NixOS</a>, the only possible way is to use Docker OCI containers or at least one NixOS container with its own service definition.
+
+For support or additional context, see the related [GitHub Discussion](https://github.com/orgs/TriliumNext/discussions/1642#discussioncomment-12768808).
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/On NixOS.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/On NixOS.md
new file mode 100644
index 0000000000..a101ee5373
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/On NixOS.md	
@@ -0,0 +1,25 @@
+# On NixOS
+This page describes configuring the Trilium module included in NixOS.
+
+## Requirements
+
+[NixOS](https://nixos.org/) installation.
+
+## Configuration
+
+Add this to your `configuration.nix`:
+
+```
+services.trilium-server.enable = true;
+
+# default data directory: /var/lib/trilium
+#services.trilium-server.dataDir = "/var/lib/trilium-sync-server";
+
+# default bind address: 127.0.0.1, port 8080
+#services.trilium-server.host = "0.0.0.0";
+#services.trilium-server.port = 12783;
+```
+
+Uncomment any option you would like to change.
+
+See the [NixOS options list](https://search.nixos.org/options?channel=unstable&from=0&size=50&sort=relevance&type=packages&query=trilium-server) for more options (including nginx reverse proxy configuration).
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Packaged version for Linux.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Packaged version for Linux.md
new file mode 100644
index 0000000000..54616e6e19
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Packaged version for Linux.md	
@@ -0,0 +1,181 @@
+# Packaged version for Linux
+This is essentially Trilium sources + node modules + node.js runtime packaged into one 7z file.
+
+## Steps
+
+*   SSH into your server
+*   use `wget` (or `curl`) to download latest `TriliumNotes-Server-[VERSION]-linux-x64.tar.xz` (copy link from [release page](https://github.com/TriliumNext/Trilium/releases), notice `-Server` suffix) on your server.
+*   unpack the archive, e.g. using `tar -xf -d TriliumNotes-Server-[VERSION]-linux-x64.tar.xz`
+*   `cd trilium-linux-x64-server`
+*   `./trilium.sh`
+*   you can open the browser and open http://\[your-server-hostname\]:8080 and you should see Trilium initialization page
+
+The problem with above steps is that once you close the SSH connection, the Trilium process is terminated. To avoid that, you have two options:
+
+*   Kill it (with e.g. <kbd>Ctrl</kbd> + <kbd>C</kbd>) and run again like this: `nohup ./trilium.sh &`. (nohup keeps the process running in the background, `&` runs it in the background)
+*   Configure systemd to automatically run Trilium in the background on every boot
+
+## Configure Trilium to auto-run on boot with systemd
+
+*   After downloading, extract and move Trilium:
+
+```
+tar -xvf TriliumNotes-Server-[VERSION]-linux-x64.tar.xz
+sudo mv trilium-linux-x64-server /opt/trilium
+```
+
+*   Create the service:
+
+```
+sudo nano /etc/systemd/system/trilium.service
+```
+
+*   Paste this into the file (replace the user and group as needed):
+
+```
+[Unit]
+Description=Trilium Daemon
+After=syslog.target network.target
+
+[Service]
+User=xxx
+Group=xxx
+Type=simple
+ExecStart=/opt/trilium/trilium.sh
+WorkingDirectory=/opt/trilium/
+
+TimeoutStopSec=20
+# KillMode=process leads to error, according to https://www.freedesktop.org/software/systemd/man/systemd.kill.html
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
+```
+
+*   Save the file (CTRL-S) and exit (CTRL-X)
+*   Enable and launch the service:
+
+```
+sudo systemctl enable --now -q trilium
+```
+
+*   You can now open a browser to http://\[your-server-hostname\]:8080 and you should see the Trilium initialization page.
+
+## Simple Autoupdate for Server
+
+Run as the same User Trilium runs
+
+if you run as root please remove 'sudo' from the commands
+
+requires "jq" `apt install jq`
+
+It will stop the service above, overwrite everything (i expect no config.ini), and start service It also creates a version file in the Trilium directory so it updates only with a newer Version
+
+```
+#!/bin/bash
+
+# Configuration
+REPO="TriliumNext/Trilium"
+PATTERN="TriliumNotes-Server-.*-linux-x64.tar.xz"
+DOWNLOAD_DIR="/var/tmp/trilium_download"
+OUTPUT_DIR="/opt/trilium"
+SERVICE_NAME="trilium"
+VERSION_FILE="$OUTPUT_DIR/version.txt"
+
+# Ensure dependencies are installed
+command -v curl >/dev/null 2>&1 || { echo "Error: curl is required"; exit 1; }
+command -v jq >/dev/null 2>&1 || { echo "Error: jq is required"; exit 1; }
+command -v tar >/dev/null 2>&1 || { echo "Error: tar is required"; exit 1; }
+
+# Create download directory
+mkdir -p "$DOWNLOAD_DIR" || { echo "Error: Cannot create $DOWNLOAD_DIR"; exit 1; }
+
+# Get the latest release version
+LATEST_VERSION=$(curl -sL https://api.github.com/repos/$REPO/releases/latest | jq -r '.tag_name')
+if [ -z "$LATEST_VERSION" ]; then
+  echo "Error: Could not fetch latest release version"
+  exit 1
+fi
+
+# Check current installed version (from version.txt or existing tarball)
+CURRENT_VERSION=""
+if [ -f "$VERSION_FILE" ]; then
+  CURRENT_VERSION=$(cat "$VERSION_FILE")
+elif [ -f "$DOWNLOAD_DIR/TriliumNotes-Server-$LATEST_VERSION-linux-x64.tar.xz" ]; then
+  CURRENT_VERSION="$LATEST_VERSION"
+fi
+
+# Compare versions
+if [ "$CURRENT_VERSION" = "$LATEST_VERSION" ]; then
+  echo "Latest version ($LATEST_VERSION) is already installed"
+  exit 0
+fi
+
+# Download the latest release
+LATEST_URL=$(curl -sL https://api.github.com/repos/$REPO/releases/latest | jq -r ".assets[] | select(.name | test(\"$PATTERN\")) | .browser_download_url")
+if [ -z "$LATEST_URL" ]; then
+  echo "Error: No asset found matching pattern '$PATTERN'"
+  exit 1
+fi
+
+FILE_NAME=$(basename "$LATEST_URL")
+FILE_PATH="$DOWNLOAD_DIR/$FILE_NAME"
+
+# Download if not already present
+if [ -f "$FILE_PATH" ]; then
+  echo "Latest release $FILE_NAME already downloaded"
+else
+  curl -LO --output-dir "$DOWNLOAD_DIR" "$LATEST_URL" || { echo "Error: Download failed"; exit 1; }
+  echo "Downloaded $FILE_NAME to $DOWNLOAD_DIR"
+fi
+
+# Extract the tarball
+EXTRACT_DIR="$DOWNLOAD_DIR/extracted"
+mkdir -p "$EXTRACT_DIR"
+tar -xJf "$FILE_PATH" -C "$EXTRACT_DIR" || { echo "Error: Extraction failed"; exit 1; }
+
+# Find the extracted directory (e.g., TriliumNotes-Server-0.97.2-linux-x64)
+INNER_DIR=$(find "$EXTRACT_DIR" -maxdepth 1 -type d -name "TriliumNotes-Server-*-linux-x64" | head -n 1)
+if [ -z "$INNER_DIR" ]; then
+  echo "Error: Could not find extracted directory matching TriliumNotes-Server-*-linux-x64"
+  exit 1
+fi
+
+# Stop the trilium-server service
+if systemctl is-active --quiet "$SERVICE_NAME"; then
+  echo "Stopping $SERVICE_NAME service..."
+  sudo systemctl stop "$SERVICE_NAME" || { echo "Error: Failed to stop $SERVICE_NAME"; exit 1; }
+fi
+
+# Copy contents to /opt/trilium, overwriting existing files
+echo "Copying contents from $INNER_DIR to $OUTPUT_DIR..."
+sudo mkdir -p "$OUTPUT_DIR"
+sudo cp -r "$INNER_DIR"/* "$OUTPUT_DIR"/ || { echo "Error: Copy failed"; exit 1; }
+echo "$LATEST_VERSION" | sudo tee "$VERSION_FILE" >/dev/null
+echo "Files copied to $OUTPUT_DIR"
+
+# Start the trilium-server service
+echo "Starting $SERVICE_NAME service..."
+sudo systemctl start "$SERVICE_NAME" || { echo "Error: Failed to start $SERVICE_NAME"; exit 1; }
+
+# Clean up
+rm -rf "$EXTRACT_DIR"
+echo "Cleanup complete. Trilium updated to $LATEST_VERSION."
+```
+
+## Common issues
+
+### Outdated glibc
+
+```
+Error: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /var/www/virtual/.../node_modules/@mlink/scrypt/build/Release/scrypt.node)
+    at Object.Module._extensions..node (module.js:681:18)
+    at Module.load (module.js:565:32)
+    at tryModuleLoad (module.js:505:12)
+```
+
+If you get an error like this, you need to either upgrade your glibc (typically by upgrading to up-to-date distribution version) or use some other [server installation](../../1_Server%20Installation.md) method.
+
+## TLS
+
+Don't forget to [configure TLS](../TLS%20Configuration.md), which is required for secure usage!
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Docker.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Docker.md
new file mode 100644
index 0000000000..9ad5227cd3
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Docker.md	
@@ -0,0 +1,241 @@
+# Using Docker
+Official docker images are published on docker hub for **AMD64**, **ARMv7** and **ARM64/v8**: [https://hub.docker.com/r/triliumnext/trilium/](https://hub.docker.com/r/triliumnext/trilium/)
+
+## Prerequisites
+
+Ensure Docker is installed on your system.
+
+If you need help installing Docker, reference the [Docker Installation Docs](https://docs.docker.com/engine/install/)
+
+**Note:** Trilium's Docker container requires root privileges to operate correctly.
+
+> [!WARNING]
+> If you're using a SMB/CIFS share or folder as your Trilium data directory, [you'll need](https://github.com/TriliumNext/Notes/issues/415#issuecomment-2344824400) to add the mount options of `nobrl` and `noperm` when mounting your SMB share.
+
+## Running with Docker Compose
+
+### Grab the latest docker-compose.yml:
+
+```
+wget https://raw.githubusercontent.com/TriliumNext/Trilium/master/docker-compose.yml
+```
+
+Optionally, edit the `docker-compose.yml` file to configure the container settings prior to starting it. Unless configured otherwise, the data directory will be `~/trilium-data` and the container will be accessible at port 8080.
+
+### Start the container:
+
+Run the following command to start the container in the background:
+
+```
+docker compose up -d
+```
+
+## Running without Docker Compose / Further Configuration
+
+### Pulling the Docker Image
+
+To pull the image, use the following command, replacing `[VERSION]` with the desired version or tag, such as `v0.91.6` or just `latest`. (See published tag names at [https://hub.docker.com/r/triliumnext/trilium/tags](https://hub.docker.com/r/triliumnext/trilium/tags).):
+
+```
+docker pull triliumnext/trilium:v0.91.6
+```
+
+**Warning:** Avoid using the "latest" tag, as it may automatically upgrade your instance to a new minor version, potentially disrupting sync setups or causing other issues.
+
+### Preparing the Data Directory
+
+Trilium requires a directory on the host system to store its data. This directory must be mounted into the Docker container with write permissions.
+
+### Running the Docker Container
+
+#### Local Access Only
+
+Run the container to make it accessible only from the localhost. This setup is suitable for testing or when using a proxy server like Nginx or Apache.
+
+```
+sudo docker run -t -i -p 127.0.0.1:8080:8080 -v ~/trilium-data:/home/node/trilium-data triliumnext/trilium:[VERSION]
+```
+
+1.  Verify the container is running using `docker ps`.
+2.  Access Trilium via a web browser at `127.0.0.1:8080`.
+
+#### Local Network Access
+
+To make the container accessible only on your local network, first create a new Docker network:
+
+```
+docker network create -d macvlan -o parent=eth0 --subnet 192.168.2.0/24 --gateway 192.168.2.254 --ip-range 192.168.2.252/27 mynet
+```
+
+Then, run the container with the network settings:
+
+```
+docker run --net=mynet -d -p 127.0.0.1:8080:8080 -v ~/trilium-data:/home/node/trilium-data triliumnext/trilium:-latest
+```
+
+To set a different user ID (UID) and group ID (GID) for the saved data, use the `USER_UID` and `USER_GID` environment variables:
+
+```
+docker run --net=mynet -d -p 127.0.0.1:8080:8080 -e "USER_UID=1001" -e "USER_GID=1001" -v ~/trilium-data:/home/node/trilium-data triliumnext/trilium:-latest
+```
+
+Find the local IP address using `docker inspect [container_name]` and access the service from devices on the local network.
+
+```
+docker ps
+docker inspect [container_name]
+```
+
+#### Global Access
+
+To allow access from any IP address, run the container as follows:
+
+```
+docker run -d -p 0.0.0.0:8080:8080 -v ~/trilium-data:/home/node/trilium-data triliumnext/trilium:[VERSION]
+```
+
+Stop the container with `docker stop <CONTAINER ID>`, where the container ID is obtained from `docker ps`.
+
+### Custom Data Directory
+
+For a custom data directory, use:
+
+```
+-v ~/YourOwnDirectory:/home/node/trilium-data triliumnext/trilium:[VERSION]
+```
+
+If you want to run your instance in a non-default way, please use the volume switch as follows: `-v ~/YourOwnDirectory:/home/node/trilium-data triliumnext/trilium:<VERSION>`. It is important to be aware of how Docker works for volumes, with the first path being your own and the second the one to virtually bind to. [https://docs.docker.com/storage/volumes/](https://docs.docker.com/storage/volumes/) The path before the colon is the host directory, and the path after the colon is the container's path. More details can be found in the [Docker Volumes Documentation](https://docs.docker.com/storage/volumes/).
+
+## Reverse Proxy
+
+1.  [Nginx](../2.%20Reverse%20proxy/Nginx.md)
+2.  [Apache](../2.%20Reverse%20proxy/Apache.md)
+
+### Note on --user Directive
+
+The `--user` directive is unsupported. Instead, use the `USER_UID` and `USER_GID` environment variables to set the appropriate user and group IDs.
+
+### Note on timezones
+
+If you are having timezone issues and you are not using docker-compose, you may need to add a `TZ` environment variable with the [TZ identifier](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) of your local timezone.
+
+## Rootless Docker Image
+
+> [!NOTE]
+> Please keep in mind that the data directory is at `/home/trilium/trilium-data` instead of the typical `/home/node/trilium-data`. This is because a new user is created and used to run Trilium within the rootless containers.
+
+If you would prefer to run Trilium without having to run the Docker container as `root`, you can use either of the provided Debian (default) and Alpine-based images with the `rootless` tag. 
+
+_**If you're unsure, stick to the “rootful” Docker image referenced above.**_
+
+Below are some commands to pull the rootless images:
+
+```
+# For Debian-based image
+docker pull triliumnext/trilium:rootless
+
+# For Alpine-based image
+docker pull triliumnext/trilium:rootless-alpine
+```
+
+### Why Rootless?
+
+Running containers as non-root is a security best practice that reduces the potential impact of container breakouts. If an attacker manages to escape the container, they'll only have the permissions of the non-root user instead of full root access to the host.
+
+### How It Works
+
+The rootless Trilium image:
+
+1.  Creates a non-root user (`trilium`) during build time
+2.  Configures the application to run as this non-root user
+3.  Allows runtime customization of the user's UID/GID via Docker's `--user` flag
+4.  Does not require a separate Docker `entrypoint` script
+
+### Usage
+
+#### **Using docker-compose (Recommended)**
+
+```
+# Run with default UID/GID (1000:1000)
+docker-compose -f docker-compose.rootless.yml up -d
+
+# Run with custom UID/GID (e.g., match your host user)
+TRILIUM_UID=$(id -u) TRILIUM_GID=$(id -g) docker-compose -f docker-compose.rootless.yml up -d
+
+# Specify a custom data directory
+TRILIUM_DATA_DIR=/path/to/your/data TRILIUM_UID=$(id -u) TRILIUM_GID=$(id -g) docker-compose -f docker-compose.rootless.yml up -d
+
+```
+
+#### **Using Docker CLI**
+
+```
+# Build the image
+docker build -t triliumnext/trilium:rootless -f apps/server/Dockerfile.rootless .
+
+# Run with default UID/GID (1000:1000)
+docker run -d --name trilium -p 8080:8080 -v ~/trilium-data:/home/trilium/trilium-data triliumnext/trilium:rootless
+
+# Run with custom UID/GID
+docker run -d --name trilium -p 8080:8080 --user $(id -u):$(id -g) -v ~/trilium-data:/home/trilium/trilium-data triliumnext/trilium:rootless
+
+```
+
+### Environment Variables
+
+*   `TRILIUM_UID`: UID to use for the container process (passed to Docker's `--user` flag)
+*   `TRILIUM_GID`: GID to use for the container process (passed to Docker's `--user` flag)
+*   `TRILIUM_DATA_DIR`: Path to the data directory inside the container (default: `/home/node/trilium-data`)
+
+For a complete list of configuration environment variables (network settings, authentication, sync, etc.), see <a class="reference-link" href="#root/1CEQXvOOO4EK">Configuration (config.ini or environment variables)</a>.
+
+### Volume Permissions
+
+If you encounter permission issues with the data volume, ensure that:
+
+1.  The host directory has appropriate permissions for the UID/GID you're using
+2.  You're setting both `TRILIUM_UID` and `TRILIUM_GID` to match the owner of the host directory
+
+```
+# For example, if your data directory is owned by UID 1001 and GID 1001:
+TRILIUM_UID=1001 TRILIUM_GID=1001 docker-compose -f docker-compose.rootless.yml up -d
+
+```
+
+### Considerations
+
+*   The container starts with a specific UID/GID which can be customized at runtime
+*   Unlike the traditional setup, this approach does not use a separate entrypoint script with `usermod`/`groupmod` commands
+*   The container cannot modify its own UID/GID at runtime, which is a security feature of rootless containers
+
+### Available Rootless Images
+
+Two rootless variants are provided:
+
+1.  **Debian-based** (default): Uses the Debian Bullseye Slim base image
+    *   Dockerfile: `apps/server/Dockerfile.rootless`
+    *   Recommended for most users
+2.  **Alpine-based**: Uses the Alpine base image for smaller size
+    *   Dockerfile: `apps/server/Dockerfile.alpine.rootless`
+    *   Smaller image size, but may have compatibility issues with some systems
+
+### Building Custom Rootless Images
+
+If you would prefer, you can also customize the UID/GID at build time:
+
+```
+# For Debian-based image with custom UID/GID
+docker build --build-arg USER=myuser --build-arg UID=1001 --build-arg GID=1001 \
+  -t triliumnext/trilium:rootless-custom -f apps/server/Dockerfile.rootless .
+
+# For Alpine-based image with custom UID/GID
+docker build --build-arg USER=myuser --build-arg UID=1001 --build-arg GID=1001 \
+  -t triliumnext/trilium:alpine-rootless-custom -f apps/server/Dockerfile.alpine.rootless .
+
+```
+
+Available build arguments:
+
+*   `USER`: Username for the non-root user (default: trilium)
+*   `UID`: User ID for the non-root user (default: 1000)
+*   `GID`: Group ID for the non-root user (default: 1000)
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Kubernetes.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Kubernetes.md
new file mode 100644
index 0000000000..e6d34e9f82
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/1. Installing the server/Using Kubernetes.md	
@@ -0,0 +1,36 @@
+# Using Kubernetes
+As Trilium can be run in Docker it also can be deployed in Kubernetes. You can either use our Helm chart, a community Helm chart, or roll your own Kubernetes deployment.
+
+The recommended way is to use a Helm chart.
+
+## Root privileges
+
+> [!NOTE]
+> The Trilium container at this time needs to be run with root privileges. It will swap to UID and GID `1000:1000` to run the `node` process after execution though, so the main process doesn't run with root privileges.
+
+The Trilium docker container needs to be run with root privileges. The node process inside the container will be started with reduced privileges (uid:gid 1000:1000) after some initialization logic. Please make sure that you don't use a security context (PodSecurityContext) which changes the user ID. To use a different uid:gid for file storage and the application, please use the `USER_UID` & `USER_GID` environment variables.
+
+The docker image will also fix the permissions of `/home/node` so you don't have to use an init container.
+
+## Helm Charts
+
+[Official Helm chart](https://github.com/TriliumNext/helm-charts) from TriliumNext Unofficial helm chart by [ohdearaugustin](https://github.com/ohdearaugustin): [https://github.com/ohdearaugustin/charts](https://github.com/ohdearaugustin/charts)
+
+## Adding a Helm repository
+
+Below is an example of how
+
+```
+helm repo add trilium https://triliumnext.github.io/helm-charts
+"trilium" has been added to your repositories
+```
+
+## How to install a chart
+
+After reviewing the [`values.yaml`](https://github.com/TriliumNext/helm-charts/blob/main/charts/trilium/values.yaml) from the Helm chart, modifying as required and then creating your own:
+
+```
+helm install --create-namespace --namespace trilium trilium trilium/trilium -f values.yaml
+```
+
+For more information on using Helm, please refer to the Helm documentation, or create a Discussion in the TriliumNext GitHub Organization.
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Apache.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Apache.md
new file mode 100644
index 0000000000..93f54da100
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Apache.md	
@@ -0,0 +1,81 @@
+# Apache
+I've assumed you have created a DNS A record for `trilium.yourdomain.com` that you want to use for your Trilium server.
+
+1.  Download docker image and create container
+    
+    ```
+     docker pull triliumnext/trilium:[VERSION]
+     docker create --name trilium -t -p 127.0.0.1:8080:8080 -v ~/trilium-data:/home/node/trilium-data triliumnext/trilium:[VERSION]
+    ```
+2.  Configure Apache proxy and websocket proxy
+    
+    1.  Enable apache proxy modules
+        
+        ```
+         a2enmod ssl
+         a2enmod proxy
+         a2enmod proxy_http
+         a2enmod proxy_wstunnel
+        ```
+    2.  Create a new let's encrypt certificate
+        
+        ```
+         sudo certbot certonly -d trilium.mydomain.com
+        ```
+        
+        Choose standalone (2) and note the location of the created certificates (typically /etc/letsencrypt/live/...)
+    3.  Create a new virtual host file for apache (you may want to use `apachectl -S` to determine the server root location, mine is /etc/apache2)
+        
+        ```
+         sudo nano /etc/apache2/sites-available/trilium.yourdomain.com.conf
+        ```
+        
+        Paste (and customize) the following text into the configuration file
+        
+        ```
+         
+             ServerName http://trilium.yourdomain.com
+             RewriteEngine on
+                 RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]
+         
+         
+             ServerName https://trilium.yourdomain.com
+             RewriteEngine On
+             RewriteCond %{HTTP:Connection} Upgrade [NC]
+             RewriteCond %{HTTP:Upgrade} websocket [NC]
+             RewriteRule /(.*) ws://localhost:8080/$1 [P,L]
+             AllowEncodedSlashes NoDecode
+             ProxyPass / http://localhost:8080/ nocanon
+             ProxyPassReverse / http://localhost:8080/
+             SSLCertificateFile /etc/letsencrypt/live/trilium.yourdomain.com/fullchain.pem
+             SSLCertificateKeyFile /etc/letsencrypt/live/trilium.yourdomain.com/privkey.pem
+             Include /etc/letsencrypt/options-ssl-apache.conf
+         
+        ```
+    4.  Enable the virtual host with `sudo a2ensite trilium.yourdomain.com.conf`
+    5.  Reload apache2 with `sudo systemctl reload apache2`
+3.  Create and enable a systemd service to start the docker container on boot
+    
+    1.  Create a new empty file called `/lib/systemd/system/trilium.service` with the contents
+        
+        ```
+         [Unit]
+         Description=Trilium Server
+         Requires=docker.service
+         After=docker.service
+        
+         [Service]
+         Restart=always
+         ExecStart=/usr/bin/docker start -a trilium
+         ExecStop=/usr/bin/docker stop -t 2 trilium
+        
+         [Install]
+         WantedBy=local.target
+        ```
+    2.  Install, enable and start service
+        
+        ```
+         sudo systemctl daemon-reload
+         sudo systemctl enable trilium.service
+         sudo systemctl start trilium.service
+        ```
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Nginx.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Nginx.md
new file mode 100644
index 0000000000..57f51b4e67
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/2. Reverse proxy/Nginx.md	
@@ -0,0 +1,76 @@
+# Nginx
+Configure Nginx proxy and HTTPS. The operating system here is Ubuntu 18.04.
+
+1.  Download Nginx and remove Apache2
+    
+    ```
+    sudo apt-get install nginx
+    sudo apt-get remove apache2
+    ```
+2.  Create configure file
+    
+    ```
+    cd /etc/nginx/conf.d
+    vim default.conf
+    ```
+3.  Fill the file with the context shown below, part of the setting show be changed. Then you can enjoy your web with HTTPS forced and proxy.
+    
+    ```
+    # This part configures, where your Trilium server is running
+    upstream trilium {
+      zone trilium 64k;
+      server 127.0.0.1:8080; # change it to a different hostname and port if non-default is used
+      keepalive 2;
+    }
+    
+    # This part is for proxy and HTTPS configure
+    server {
+        listen 443 ssl;
+        server_name trilium.example.net; #change trilium.example.net to your domain without HTTPS or HTTP.
+        ssl_certificate /etc/ssl/note/example.crt; #change /etc/ssl/note/example.crt to your path of crt file.
+        ssl_certificate_key /etc/ssl/note/example.net.key; #change /etc/ssl/note/example.net.key to your path of key file.
+        ssl_session_cache builtin:1000 shared:SSL:10m;
+        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
+        ssl_ciphers HIGH:!aNULL:!eNULL:!EXPORT:!CAMELLIA:!DES:!MD5:!PSK:!RC4;
+        ssl_prefer_server_ciphers on;
+        access_log /var/log/nginx/access.log; #check the path of access.log, if it doesn't fit your file, change it
+    
+        location / {
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+            proxy_pass http://trilium;
+            proxy_read_timeout 90;
+        }
+    }
+    
+    # This part is for HTTPS forced
+    server {
+        listen 80;
+        server_name trilium.example.net; # change to your domain
+        return 301 https://$server_name$request_uri;
+    }
+    ```
+4.  Alternatively if you want to serve the instance under a different path (useful e.g. if you want to serve multiple instances), update the location block like so:
+    
+    *   update the location with your desired path (make sure to not leave a trailing slash "/", if your `proxy_pass` does not end on a slash as well)
+    *   add the `proxy_cookie_path` directive with the same path: this allows you to stay logged in at multiple instances at the same time.
+    
+    ```
+        location /trilium/instance-one {
+            rewrite /trilium/instance-one/(.*) /$1  break;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+            proxy_pass http://trilium;
+            proxy_cookie_path / /trilium/instance-one
+            proxy_read_timeout 90;
+        }
+    
+    ```
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/Authentication.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/Authentication.md
new file mode 100644
index 0000000000..7b09fdf2d5
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/Authentication.md	
@@ -0,0 +1,38 @@
+# Authentication
+## Disabling authentication
+
+If you are running Trilium on `localhost` only or if authentication is handled by another component, you can disable Trilium’s authentication by adding the following to `config.ini`:
+
+```
+[General]
+noAuthentication=true
+```
+
+Disabling authentication will bypass even the <a class="reference-link" href="Multi-Factor%20Authentication.md">Multi-Factor Authentication</a> since v0.94.1.
+
+## Understanding how the session works
+
+Once logged into Trilium, the application will store this information about the login into a cookie on the browser, but also as a session on the server.
+
+If “Remember me” is checked, then the login will expire in 21 days. This period can be adjusted by modifying the `Session.cookieMaxAge` value in `config.ini`. For example, to have the session expire in one day:
+
+```
+[Session]
+cookieMaxAge=86400
+```
+
+When “Remember me” is unchecked, the behavior is different. At client/browser level the authentication does not have any expiration date, but it will be automatically cleared as soon as the user closes the browser. Nevertheless, the server will also dismiss this authentication in around 24 hours from the _last interaction with the application_.
+
+## Viewing active sessions
+
+The login sessions are now stored in the same <a class="reference-link" href="#root/lvXOQ00dcRlk">Database</a> as the user data. In order to view which sessions are active, open the <a class="reference-link" href="#root/hDJ4mPkZJQ4E">SQL Console</a> and run the following query:
+
+```
+SELECT * FROM sessions
+```
+
+Expired sessions are periodically cleaned by the server, generally an hourly interval.
+
+## See also
+
+*   <a class="reference-link" href="Multi-Factor%20Authentication.md">Multi-Factor Authentication</a>
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/Multi-Factor Authentication.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/Multi-Factor Authentication.md
new file mode 100644
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--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/Multi-Factor Authentication.md	
@@ -0,0 +1,67 @@
+# Multi-Factor Authentication
+Multi-factor authentication (MFA) is a security process that requires users to provide two or more verification factors to gain access to a system, application, or account. This adds an extra layer of protection beyond just using a password.
+
+By requiring more than one verification method, MFA helps reduce the risk of unauthorized access, even if someone has obtained your password. It’s highly recommended for securing sensitive information stored in your notes.
+
+> [!WARNING]
+> OpenID and TOTP cannot be both used at the same time!
+
+## Log in with your Google Account with OpenID!
+
+OpenID is a standardized way to let you log into websites using an account from another service, like Google, to verify your identity.
+
+## Why Time-based One Time Passwords?
+
+TOTP (Time-Based One-Time Password) is a security feature that generates a unique, temporary code on your device, like a smartphone, which changes every 30 seconds. You use this code, along with your password, to log into your account, making it much harder for anyone else to access them.
+
+## Setup
+
+MFA can only be set up on a server instance.
+
+> [!NOTE]
+> When Multi-Factor Authentication (MFA) is enabled on a server instance, a new desktop instance may fail to sync with it. As a temporary workaround, you can disable MFA to complete the initial sync, then re-enable MFA afterward. This issue will be addressed in a future release.
+
+### TOTP
+
+1.  Go to "Menu" -> "Options" -> "MFA"
+2.  Click the “Enable Multi-Factor Authentication” checkbox if not checked
+3.  Choose “Time-Based One-Time Password (TOTP)” under MFA Method
+4.  Click the "Generate TOTP Secret" button
+5.  Copy the generated secret to your authentication app/extension
+6.  Click the "Generate Recovery Codes" button
+7.  Save the recovery codes. Recovery codes can be used once in place of the TOTP if you loose access to your authenticator. After a rerecovery code is used, it will show the unix timestamp when it was used in the MFA options tab.
+8.  Re-login will be required after TOTP setup is finished (After you refreshing the page).
+
+### OpenID
+
+In order to setup OpenID, you will need to setup a authentication provider. This requires a bit of extra setup. Follow [these instructions](https://developers.google.com/identity/openid-connect/openid-connect) to setup an OpenID service through google. The Redirect URL of Trilium is `https://<your-trilium-domain>/callback`.
+
+1.  Set the `oauthBaseUrl`, `oauthClientId` and `oauthClientSecret` in the `config.ini` file (check <a class="reference-link" href="#root/SneMubD5wTR6">Configuration (config.ini or environment variables)</a> for more information).
+    1.  You can also setup through environment variables:
+        *   Standard: `TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHBASEURL`, `TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHCLIENTID`, `TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHCLIENTSECRET`
+        *   Legacy (still supported): `TRILIUM_OAUTH_BASE_URL`, `TRILIUM_OAUTH_CLIENT_ID`, `TRILIUM_OAUTH_CLIENT_SECRET`
+    2.  `oauthBaseUrl` should be the link of your Trilium instance server, for example, `https://<your-trilium-domain>`.
+2.  Restart the server
+3.  Go to "Menu" -> "Options" -> "MFA"
+4.  Click the “Enable Multi-Factor Authentication” checkbox if not checked
+5.  Choose “OAuth/OpenID” under MFA Method
+6.  Refresh the page and login through OpenID provider
+
+> [!NOTE]
+> The default OAuth issuer is Google. To use other services such as Authentik or Auth0, you can configure the settings via `oauthIssuerBaseUrl`, `oauthIssuerName`, and `oauthIssuerIcon` in the `config.ini` file. Alternatively, these values can be set using environment variables:
+> 
+> *   Standard: `TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHISSUERBASEURL`, `TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHISSUERNAME`, `TRILIUM_MULTIFACTORAUTHENTICATION_OAUTHISSUERICON`
+> *   Legacy (still supported): `TRILIUM_OAUTH_ISSUER_BASE_URL`, `TRILIUM_OAUTH_ISSUER_NAME`, `TRILIUM_OAUTH_ISSUER_ICON`
+> 
+> `oauthIssuerName` and `oauthIssuerIcon` are required for displaying correct issuer information at the Login page.
+
+#### Authentik
+
+If you don’t already have a running Authentik instance, please follow [these instructions](https://docs.goauthentik.io/docs/install-config/install/docker-compose) to set one up.
+
+1.  In the Authentik admin dashboard, create a new OAuth2 application by following [these steps](https://docs.goauthentik.io/docs/add-secure-apps/providers/oauth2/create-oauth2-provider). Make sure to set the Redirect URL to: `https://<your-trilium-domain>/callback`.
+2.  In your config.ini file, set the relevant OAuth variables:
+    1.  `oauthIssuerBaseUrl` → Use the `OpenID Configuration Issuer` URL from your application's overview page.
+    2.  `oauthIssuerName` and `oauthIssuerIcon` → Set these to customize the name and icon displayed on the login page. If omitted, Google’s name and icon will be shown by default.
+3.  Apply the changes by restarting your server.
+4.  Proceed with the remaining steps starting from Step 3 in the OpenID section.
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/TLS Configuration.md b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/TLS Configuration.md
new file mode 100644
index 0000000000..b9d9e3e41d
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/1_Server Installation/TLS Configuration.md	
@@ -0,0 +1,53 @@
+# TLS Configuration
+Configuring TLS is essential for [server installation](../1_Server%20Installation.md) in Trilium. This guide details the steps to set up TLS within Trilium itself.
+
+For a more robust solution, consider using TLS termination with a reverse proxy (recommended, e.g., Nginx). You can follow a [guide like this](https://www.digitalocean.com/community/tutorials/how-to-secure-nginx-with-let-s-encrypt-on-ubuntu-20-04) for such setups.
+
+## Obtaining a TLS Certificate
+
+You have two options for obtaining a TLS certificate:
+
+*   **Recommended**: Obtain a TLS certificate signed by a root certificate authority. For personal use, [Let's Encrypt](https://letsencrypt.org) is an excellent choice. It is free, automated, and straightforward. Certbot can facilitate automatic TLS setup.
+*   Generate a self-signed certificate. This option is not recommended due to the additional complexity of importing the certificate into all machines connecting to the server.
+
+## Modifying `config.ini`
+
+Once you have your certificate, modify the `config.ini` file in the [data directory](#root/dvbMBRXYMM2G) to configure Trilium to use it:
+
+```
+[Network]
+port=8080
+# Set to true for TLS/SSL/HTTPS (secure), false for HTTP (insecure).
+https=true
+# Path to the certificate (run "bash bin/generate-cert.sh" to generate a self-signed certificate).
+# Relevant only if https=true
+certPath=/[username]/.acme.sh/[hostname]/fullchain.cer
+keyPath=/[username]/.acme.sh/[hostname]/example.com.key
+```
+
+You can also review the [configuration](#root/SneMubD5wTR6) file to provide all `config.ini` values as environment variables instead. For example, you can configure TLS using environment variables:
+
+```sh
+export TRILIUM_NETWORK_HTTPS=true
+export TRILIUM_NETWORK_CERTPATH=/path/to/cert.pem
+export TRILIUM_NETWORK_KEYPATH=/path/to/key.pem
+```
+
+The above example shows how this is set up in an environment where the certificate was generated using Let's Encrypt's ACME utility. Your paths may differ. For Docker installations, ensure these paths are within a volume or another directory accessible by the Docker container, such as `/home/node/trilium-data/[DIR IN DATA DIRECTORY]`.
+
+After configuring `config.ini`, restart Trilium and access the hostname using "https".
+
+## Self-Signed Certificate
+
+If you opt to use a self-signed certificate for your server instance, note that the desktop instance will not trust it by default.
+
+To bypass this, disable certificate validation by setting the following environment variable (for Linux):
+
+```
+export NODE_TLS_REJECT_UNAUTHORIZED=0
+trilium
+```
+
+Trilium provides scripts to start in this mode, such as `trilium-no-cert-check.bat` for Windows.
+
+**Warning**: Disabling TLS certificate validation is insecure. Proceed only if you fully understand the implications.
\ No newline at end of file
diff --git a/docs/User Guide/User Guide/Installation & Setup/Security/Protected Notes and Encryption.md b/docs/User Guide/User Guide/Installation & Setup/Security/Protected Notes and Encryption.md
new file mode 100644
index 0000000000..e0f4950989
--- /dev/null
+++ b/docs/User Guide/User Guide/Installation & Setup/Security/Protected Notes and Encryption.md	
@@ -0,0 +1,279 @@
+# Protected Notes and Encryption
+Trilium provides robust encryption capabilities through its Protected Notes system, ensuring your sensitive information remains secure even if your database is compromised.
+
+## Overview
+
+Protected notes in Trilium use **AES-128-CBC encryption** with scrypt-based key derivation to protect sensitive content. The encryption is designed to be:
+
+*   **Secure**: Uses industry-standard AES encryption with strong key derivation
+*   **Selective**: Only notes marked as protected are encrypted
+*   **Session-based**: Decrypted content remains accessible during a protected session
+*   **Zero-knowledge**: The server never stores unencrypted protected content
+
+## How Encryption Works
+
+### Encryption Algorithm
+
+*   **Cipher**: AES-128-CBC (Advanced Encryption Standard in Cipher Block Chaining mode)
+*   **Key Derivation**: Scrypt with configurable parameters (N=16384, r=8, p=1)
+*   **Initialization Vector**: 16-byte random IV generated for each encryption operation
+*   **Integrity Protection**: SHA-1 digest (first 4 bytes) prepended to plaintext for tamper detection
+
+### Key Management
+
+1.  **Master Password**: User-provided password used for key derivation
+2.  **Data Key**: 32-byte random key generated during setup, encrypted with password-derived key
+3.  **Password-Derived Key**: Generated using scrypt from master password and salt
+4.  **Session Key**: Data key loaded into memory during protected session
+
+### Encryption Process
+
+```
+1. Generate random 16-byte IV
+2. Compute SHA-1 digest of plaintext (use first 4 bytes)
+3. Prepend digest to plaintext
+4. Encrypt (digest + plaintext) using AES-128-CBC
+5. Prepend IV to encrypted data
+6. Encode result as Base64
+```
+
+### Decryption Process
+
+```
+1. Decode Base64 ciphertext
+2. Extract IV (first 16 bytes) and encrypted data
+3. Decrypt using AES-128-CBC with data key and IV
+4. Extract digest (first 4 bytes) and plaintext
+5. Verify integrity by comparing computed vs. stored digest
+6. Return plaintext if verification succeeds
+```
+
+## Setting Up Protected Notes
+
+### Initial Setup
+
+1.  **Set Master Password**: Configure a strong password during initial setup
+2.  **Create Protected Note**: Right-click a note and select "Toggle Protected Status"
+3.  **Enter Protected Session**: Click the shield icon or use Ctrl+Shift+P
+
+### Password Requirements
+
+*   **Minimum Length**: 8 characters (recommended: 12+ characters)
+*   **Complexity**: Use a mix of uppercase, lowercase, numbers, and symbols
+*   **Uniqueness**: Don't reuse passwords from other services
+*   **Storage**: Consider using a password manager for complex passwords
+
+### Best Practices
+
+1.  **Strong Passwords**: Use passphrases or generated passwords
+2.  **Regular Changes**: Update passwords periodically
+3.  **Secure Storage**: Store password recovery information securely
+4.  **Backup Strategy**: Ensure encrypted backups are properly secured
+
+## Protected Sessions
+
+### Session Management
+
+*   **Automatic Timeout**: Sessions expire after configurable timeout (default: 10 minutes)
+*   **Manual Control**: Explicitly enter/exit protected sessions
+*   **Activity Tracking**: Session timeout resets with each protected note access
+*   **Multi-client**: Each client maintains its own protected session
+
+### Session Lifecycle
+
+1.  **Enter Session**: User enters master password
+2.  **Key Derivation**: System derives data key from password
+3.  **Session Active**: Protected content accessible in plaintext
+4.  **Timeout/Logout**: Data key removed from memory
+5.  **Protection Restored**: Content returns to encrypted state
+
+### Configuration Options
+
+Access via Options → Protected Session:
+
+*   **Session Timeout**: Duration before automatic logout (seconds)
+*   **Password Verification**: Enable/disable password strength requirements
+*   **Recovery Options**: Configure password recovery mechanisms
+
+## Performance Considerations
+
+### Encryption Overhead
+
+*   **CPU Impact**: Scrypt key derivation is intentionally CPU-intensive
+*   **Memory Usage**: Minimal additional memory for encrypted content
+*   **Storage Size**: Encrypted content is slightly larger due to Base64 encoding
+*   **Network Transfer**: Encrypted notes transfer as Base64 strings
+
+### Optimization Tips
+
+1.  **Selective Protection**: Only encrypt truly sensitive notes
+2.  **Session Management**: Keep sessions active during intensive work
+3.  **Hardware Acceleration**: Modern CPUs provide AES acceleration
+4.  **Batch Operations**: Group protected note operations when possible
+
+## Security Considerations
+
+### Threat Model
+
+**Protected Against**:
+
+*   Database theft or unauthorized access
+*   Network interception (data at rest)
+*   Server-side data breaches
+*   Backup file compromise
+
+**Not Protected Against**:
+
+*   Keyloggers or screen capture malware
+*   Physical access to unlocked device
+*   Memory dumps during active session
+*   Social engineering attacks
+
+### Limitations
+
+1.  **Note Titles**: Currently encrypted, may leak structural information
+2.  **Metadata**: Creation dates, modification times remain unencrypted
+3.  **Search Indexing**: Protected notes excluded from full-text search
+4.  **Sync Conflicts**: May be harder to resolve for protected content
+
+## Troubleshooting
+
+### Common Issues
+
+#### "Could not decrypt string" Error
+
+**Causes**:
+
+*   Incorrect password entered
+*   Corrupted encrypted data
+*   Database migration issues
+
+**Solutions**:
+
+1.  Verify password spelling and case sensitivity
+2.  Check for active protected session
+3.  Restart application and retry
+4.  Restore from backup if corruption suspected
+
+#### Protected Session Won't Start
+
+**Causes**:
+
+*   Password verification hash mismatch
+*   Missing encryption salt
+*   Database schema issues
+
+**Solutions**:
+
+1.  Check error logs for specific error messages
+2.  Verify database integrity
+3.  Restore from known good backup
+4.  Contact support with error details
+
+#### Performance Issues
+
+**Symptoms**:
+
+*   Slow password verification
+*   Long delays entering protected session
+*   High CPU usage during encryption
+
+**Solutions**:
+
+1.  Reduce scrypt parameters (advanced users only)
+2.  Limit number of protected notes
+3.  Upgrade hardware (more RAM/faster CPU)
+4.  Close other resource-intensive applications
+
+### Recovery Procedures
+
+#### Password Recovery
+
+If you forget your master password:
+
+1.  **No Built-in Recovery**: Trilium cannot recover forgotten passwords
+2.  **Backup Restoration**: Restore from backup with known password
+3.  **Data Export**: Export unprotected content before password change
+4.  **Complete Reset**: Last resort - lose all protected content
+
+#### Data Recovery
+
+For corrupted protected notes:
+
+1.  **Verify Backup**: Check if backups contain uncorrupted data
+2.  **Export/Import**: Try exporting and re-importing the note
+3.  **Database Repair**: Use database repair tools if available
+4.  **Professional Help**: Contact data recovery services for critical data
+
+## Advanced Configuration
+
+### Custom Encryption Parameters
+
+**Warning**: Modifying encryption parameters requires advanced knowledge and may break compatibility.
+
+For expert users, encryption parameters can be modified in the source code:
+
+```typescript
+// In my_scrypt.ts
+const scryptParams = {
+    N: 16384,  // CPU/memory cost parameter
+    r: 8,      // Block size parameter  
+    p: 1       // Parallelization parameter
+};
+```
+
+### Integration with External Tools
+
+Protected notes can be accessed programmatically:
+
+```javascript
+// Backend script example
+const protectedNote = api.getNote('noteId');
+if (protectedNote.isProtected) {
+    // Content will be encrypted unless in protected session
+    const content = protectedNote.getContent();
+}
+```
+
+## Compliance and Auditing
+
+### Encryption Standards
+
+*   **Algorithm**: AES-128-CBC (FIPS 140-2 approved)
+*   **Key Derivation**: Scrypt (RFC 7914)
+*   **Random Generation**: Node.js crypto.randomBytes() (OS entropy)
+
+### Audit Trail
+
+*   Protected session entry/exit events logged
+*   Encryption/decryption operations tracked
+*   Password verification attempts recorded
+*   Key derivation operations monitored
+
+### Compliance Considerations
+
+*   **GDPR**: Encryption provides data protection safeguards
+*   **HIPAA**: AES encryption meets security requirements
+*   **SOX**: Audit trails support compliance requirements
+*   **PCI DSS**: Strong encryption protects sensitive data
+
+## Migration and Backup
+
+### Backup Strategies
+
+1.  **Encrypted Backups**: Regular backups preserve encrypted state
+2.  **Unencrypted Exports**: Export protected content during session
+3.  **Key Management**: Securely store password recovery information
+4.  **Testing**: Regularly test backup restoration procedures
+
+### Migration Procedures
+
+When moving to new installation:
+
+1.  **Export Data**: Export all notes including protected content
+2.  **Backup Database**: Create complete database backup
+3.  **Transfer Files**: Move exported files to new installation
+4.  **Import Data**: Import using same master password
+5.  **Verify**: Confirm all protected content accessible
+
+Remember: The security of protected notes ultimately depends on choosing a strong master password and following security best practices for your overall system.
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