diff --git a/.cspell.json b/.cspell.json
index 4701468a..9b743ec2 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -14,6 +14,7 @@
   ],
   "ignorePaths": [
     "**/*.bib",
+    "**/*.rst_t",
     "**/.cspell.json",
     ".constraints/*.txt",
     ".editorconfig",
diff --git a/.gitpod.yml b/.gitpod.yml
index 94274fb1..f0a7e46d 100644
--- a/.gitpod.yml
+++ b/.gitpod.yml
@@ -1,4 +1,5 @@
 tasks:
+  - init: pyenv local 3.8
   - init: pip install -c .constraints/py3.8.txt -e .[dev]
 
 github:
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ff50419a..1074409a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -12,6 +12,18 @@ repos:
       - id: check-hooks-apply
       - id: check-useless-excludes
 
+  - repo: https://github.com/ComPWA/repo-maintenance
+    rev: 0.1.11
+    hooks:
+      - id: check-dev-files
+        args:
+          - --doc-apt-packages=graphviz
+          - --no-prettierrc
+          - --pin-requirements=bimonthly
+          - --repo-name=ampform-dpd
+          - --repo-title=AmpForm-DPD
+      - id: colab-toc-visible
+
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.5.0
     hooks:
@@ -27,18 +39,6 @@ repos:
       - id: mixed-line-ending
       - id: trailing-whitespace
 
-  - repo: https://github.com/ComPWA/repo-maintenance
-    rev: 0.1.11
-    hooks:
-      - id: check-dev-files
-        args:
-          - --doc-apt-packages=graphviz
-          - --no-prettierrc
-          - --pin-requirements=bimonthly
-          - --repo-name=ampform-dpd
-          - --repo-title=AmpForm-DPD
-      - id: colab-toc-visible
-
   - repo: https://github.com/psf/black-pre-commit-mirror
     rev: 23.12.1
     hooks:
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 714f0b93..6dbbbc0c 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -3,7 +3,9 @@
     "editor.formatOnSave": false
   },
   "[git-commit]": {
-    "editor.rulers": [72],
+    "editor.rulers": [
+      72
+    ],
     "rewrap.wrappingColumn": 72
   },
   "[json]": {
@@ -21,10 +23,12 @@
   },
   "[python]": {
     "editor.codeActionsOnSave": {
-      "source.organizeImports": true
+      "source.organizeImports": "explicit"
     },
     "editor.defaultFormatter": "ms-python.black-formatter",
-    "editor.rulers": [88]
+    "editor.rulers": [
+      88
+    ]
   },
   "[yaml]": {
     "editor.defaultFormatter": "esbenp.prettier-vscode"
@@ -34,13 +38,18 @@
   "diffEditor.experimental.showMoves": true,
   "editor.formatOnSave": true,
   "files.eol": "\n",
-  "github-actions.workflows.pinned.workflows": [".github/workflows/ci.yml"],
+  "github-actions.workflows.pinned.workflows": [
+    ".github/workflows/ci.yml"
+  ],
   "livePreview.defaultPreviewPath": "docs/_build/html",
+  "multiDiffEditor.experimental.enabled": true,
   "notebook.gotoSymbols.showAllSymbols": true,
   "python.analysis.autoImportCompletions": false,
   "python.analysis.inlayHints.pytestParameters": true,
   "python.analysis.typeCheckingMode": "strict",
-  "python.testing.pytestArgs": ["--color=no"],
+  "python.testing.pytestArgs": [
+    "--color=no"
+  ],
   "python.testing.pytestEnabled": true,
   "python.testing.unittestEnabled": false,
   "rewrap.wrappingColumn": 88,
diff --git a/environment.yml b/environment.yml
index 51a3ec55..17c7d794 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,9 +6,7 @@ dependencies:
   - python==3.8.*
   - pip
   - pip:
-      - |
-        -c .constraints/py3.8.txt
-        -e .[dev]
+      - -c .constraints/py3.8.txt -e .[dev]
 variables:
   PRETTIER_LEGACY_CLI: "1"
   PYTHONHASHSEED: 0
diff --git a/pyproject.toml b/pyproject.toml
index 33878777..a9f75437 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -291,7 +291,7 @@ ignore-names = [
     "PLW0603",
     "PLW2901",
     "S101",
-    "T201",
+    "T20",
     "TCH00",
 ]
 "docs/*" = [
@@ -310,6 +310,7 @@ ignore-names = [
     "PLR0913",
     "PLR2004",
     "S101",
+    "T20",
 ]
 
 [tool.ruff.pydocstyle]
diff --git a/src/ampform_dpd/dynamics.py b/src/ampform_dpd/dynamics.py
index c2d4c7bf..35c83818 100644
--- a/src/ampform_dpd/dynamics.py
+++ b/src/ampform_dpd/dynamics.py
@@ -180,9 +180,9 @@ def evaluate(self) -> sp.Piecewise:
             1: 1 / (1 + z**2),
             2: 1 / (9 + 3 * z**2 + z**4),
         }
-        return sp.Piecewise(*[
-            (sp.sqrt(expr), sp.Eq(L, l_val)) for l_val, expr in cases.items()
-        ])
+        return sp.Piecewise(
+            *[(sp.sqrt(expr), sp.Eq(L, l_val)) for l_val, expr in cases.items()]
+        )
 
     def _latex(self, printer, *args):
         z, L = map(printer._print, self.args)