diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..3412e37
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,11 @@
+.DS_Store
+*.o
+.so
+*.dylib
+build
+
+.vscode/*
+!.vscode/c_cpp_properties.json
+!.vscode/launch.json
+!.vscode/settings.json
+!.vscode/tasks.json
diff --git a/.github/workflows/autotag.yaml b/.github/workflows/autotag.yaml
new file mode 100644
index 0000000..38d67d1
--- /dev/null
+++ b/.github/workflows/autotag.yaml
@@ -0,0 +1,184 @@
+name: Auto Tag
+
+permissions:
+  contents: write
+  pull-requests: read
+
+on:
+  pull_request:
+    types: [closed]
+
+  workflow_dispatch:
+    inputs:
+      pullNumber:
+        description: Pull request number (i.e. 1)
+        required: true
+      dryRun:
+        description: Dryrun
+        default: "true"
+        type: choice
+        options:
+          - "true"
+          - "false"
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    if: (github.event_name == 'workflow_dispatch' || (github.event_name == 'pull_request' && github.event.pull_request.merged == true))
+    outputs:
+      PULL_SHA: ${{ steps.check-pr.outputs.PULL_SHA }}
+      RELEASE_TYPE: ${{ steps.check-pr.outputs.RELEASE_TYPE }}
+      NEXT_TAG: ${{ steps.next-tag.outputs.NEXT_TAG }}
+    steps:
+      - name: Check pull request
+        id: check-pr
+        uses: actions/github-script@v7
+        with:
+          retries: 3
+          script: |
+            console.log('github.event_name', '${{ github.event_name }}')
+            let pullNumber
+            if('${{ github.event_name }}' == 'workflow_dispatch') {
+              pullNumber = '${{ github.event.inputs.pullNumber }}'
+            } else if('${{ github.event_name }}' == 'pull_request' && '${{ github.event.pull_request.merged }}' == 'true') {
+              pullNumber = '${{ github.event.pull_request.number }}'
+            } else {
+              console.log('no pull number found')
+              return
+            }
+            console.log('pullNumber', pullNumber)
+
+            const prRes = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: pullNumber
+            })
+            if(prRes.status != 200) {
+              console.log('prRes', JSON.stringify(prRes))
+              core.setFailed(`failed to retrieve pull request: ${prRes.status}`)
+              return
+            }
+
+            const merged = (prRes.data != undefined && prRes.data.merged != undefined) ? prRes.data.merged : false
+            if('${{ github.event_name }}' == 'workflow_dispatch' && !merged) {
+              core.setFailed(`pull request #${pullNumber} is not merged (only merged PRs are allowed)`)
+              return
+            }
+
+            const labels = (prRes.data != undefined && prRes.data.labels != undefined) ? prRes.data.labels : []
+            let releaseType
+            if(labels.find(label => label.name == "release:major") != undefined) {
+              releaseType = 'major'
+              core.setOutput('RELEASE_TYPE', 'major')
+            } else if(labels.find(label => label.name == "release:minor") != undefined) {
+              releaseType = 'minor'
+              core.setOutput('RELEASE_TYPE', 'minor')
+            } else if(labels.find(label => label.name == "release:patch") != undefined) {
+              releaseType = 'patch'
+            } else {
+              console.log('pull request does not have release labels')
+              return
+            }
+            console.log('RELEASE_TYPE', releaseType)
+            core.setOutput('RELEASE_TYPE', releaseType)
+
+            const pullSHA = (prRes.data != undefined && prRes.data.head != undefined && prRes.data.head.sha != undefined) ? prRes.data.head.sha : ''
+            console.log('PULL_SHA', pullSHA)
+            core.setOutput('PULL_SHA', pullSHA)
+
+      - name: Checkout code
+        uses: actions/checkout@v4
+        if: ${{ steps.check-pr.outputs.RELEASE_TYPE != '' }}
+        with:
+          fetch-depth: 0 # Ref: https://github.com/actions/checkout/issues/100
+
+      - name: Get current tag
+        id: current-tag
+        uses: "WyriHaximus/github-action-get-previous-tag@04e8485ecb6487243907e330d522ff60f02283ce" # v1.4.0 - latest as of 2025-04-27
+        if: ${{ steps.check-pr.outputs.RELEASE_TYPE != '' }}
+        with:
+          fallback: v0.0.0
+
+      - name: Determine next semver version
+        id: next-semver-version
+        uses: madhead/semver-utils@36d1e0ed361bd7b4b77665de8093092eaeabe6ba # v4.3.0 - latest as of 2025-04-27
+        if: ${{ steps.check-pr.outputs.RELEASE_TYPE != '' }}
+        with:
+          version: ${{ steps.current-tag.outputs.tag }}
+
+      - name: Determine next tag
+        id: next-tag
+        uses: actions/github-script@v7
+        if: ${{ steps.check-pr.outputs.RELEASE_TYPE != '' }}
+        with:
+          script: |
+            console.log('semver release: ${{ steps.next-semver-version.outputs.release }}')
+            console.log('semver major: ${{ steps.next-semver-version.outputs.major }}')
+            console.log('semver minor: ${{ steps.next-semver-version.outputs.minor }}')
+            console.log('semver patch: ${{ steps.next-semver-version.outputs.patch }}')
+            console.log('semver inc-major: ${{ steps.next-semver-version.outputs.inc-major }}')
+            console.log('semver inc-minor: ${{ steps.next-semver-version.outputs.inc-minor }}')
+            console.log('semver inc-patch: ${{ steps.next-semver-version.outputs.inc-patch }}')
+
+            let nextTag
+            if('${{ steps.check-pr.outputs.RELEASE_TYPE }}' == 'major') {
+              nextTag = '${{ steps.next-semver-version.outputs.inc-major }}'
+            } else if('${{ steps.check-pr.outputs.RELEASE_TYPE }}' == 'minor') {
+              nextTag = '${{ steps.next-semver-version.outputs.inc-minor }}'
+            } else if('${{ steps.check-pr.outputs.RELEASE_TYPE }}' == 'patch') {
+              nextTag = '${{ steps.next-semver-version.outputs.inc-patch }}'
+            } else {
+              core.setFailed('invalid RELEASE_TYPE: ${{ steps.check-pr.outputs.RELEASE_TYPE }}')
+              return
+            }
+            console.log('nextTag', nextTag)
+            core.setOutput('NEXT_TAG', nextTag)
+
+  tag:
+    runs-on: ubuntu-latest
+    needs: check
+    if: ${{ needs.check.outputs.NEXT_TAG != '' }}
+    steps:
+      - name: Create tag
+        id: create-tag
+        uses: actions/github-script@v7
+        with:
+          github-token: ${{ secrets.PAT_WORKFLOW }}
+          retries: 3
+          script: |
+            if('${{ github.event.inputs.dryRun }}' == 'true') {
+              console.log('skipping tag creation due to dryrun')
+              return
+            }
+            const createTagRes = await github.rest.git.createTag({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              tag: 'v${{ needs.check.outputs.NEXT_TAG }}',
+              message: 'v${{ needs.check.outputs.NEXT_TAG }}',
+              object: '${{ needs.check.outputs.PULL_SHA }}',
+              type: 'commit',
+              tagger: {
+                name: '${{ secrets.GIT_USER_NAME }}',
+                email: '${{ secrets.GIT_USER_EMAIL }}'
+              }
+            })
+            if(createTagRes.status != 201) {
+              console.log('createTagRes', JSON.stringify(createTagRes))
+              core.setFailed(`failed to create tag: ${createTagRes.status}`)
+              return
+            }
+            console.log('new tag', createTagRes.data.tag)
+            console.log('new tag sha', createTagRes.data.sha)
+
+            const createRefRes = await github.rest.git.createRef({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              ref: `refs/tags/${createTagRes.data.tag}`,
+              sha: createTagRes.data.sha
+            })
+            if(createRefRes.status != 201) {
+              console.log('createRefRes', JSON.stringify(createRefRes))
+              core.setFailed(`failed to create reference: ${createRefRes.status}`)
+              return
+            }
+            console.log('new tag ref', createRefRes.data.ref)
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
new file mode 100644
index 0000000..3756291
--- /dev/null
+++ b/.github/workflows/release.yaml
@@ -0,0 +1,69 @@
+name: Release
+
+permissions:
+  contents: write
+
+on:
+  push:
+    tags: ["v*.*.*"]
+
+  workflow_dispatch:
+    inputs:
+      releaseTag:
+        description: Existing git tag (i.e. v0.1.0)
+        required: true
+      dryRun:
+        description: Dryrun
+        default: "true"
+        type: choice
+        options:
+          - "true"
+          - "false"
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    if: (github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && github.ref_type == 'tag'))
+    outputs:
+      RELEASE_TAG: ${{ steps.check-tag.outputs.RELEASE_TAG }}
+      REPO_NAME: ${{ steps.check-tag.outputs.REPO_NAME }}
+    steps:
+      - name: Check release tag
+        id: check-tag
+        uses: actions/github-script@v7
+        with:
+          script: |
+            console.log('github.event_name', '${{ github.event_name }}')
+            console.log('github.ref_type', '${{ github.ref_type }}')
+            let releaseTag
+            if('${{ github.event_name }}' == 'workflow_dispatch') {
+              releaseTag = '${{ github.event.inputs.releaseTag }}'
+            } else if('${{ github.event_name }}' == 'push' && '${{ github.ref_type }}' == 'tag') {
+              releaseTag = '${{ github.ref }}'.replace(/^refs\/tags\//, '');
+            } else {
+              console.log('no semver tag found')
+              return
+            }
+            console.log('RELEASE_TAG', releaseTag)
+            core.setOutput('RELEASE_TAG', releaseTag)
+            console.log('REPO_NAME', context.repo.repo)
+            core.setOutput('REPO_NAME', context.repo.repo)
+
+      - name: Check tag semver
+        id: check-tag-semver
+        uses: madhead/semver-utils@36d1e0ed361bd7b4b77665de8093092eaeabe6ba # v4.3.0 - latest as of 2025-04-27
+        if: ${{ steps.check-tag.outputs.RELEASE_TAG != '' }}
+        with:
+          version: ${{ steps.check-tag.outputs.RELEASE_TAG }}
+          lenient: false # fail on error
+
+  release:
+    runs-on: ubuntu-latest
+    needs: check
+    if: ${{ needs.check.outputs.RELEASE_TAG != '' }}
+    steps:
+      - name: Make a release
+        uses: softprops/action-gh-release@da05d552573ad5aba039eaac05058a918a7bf631 # v2.2.2 - latest as of 2025-04-27
+        if: github.event.inputs.dryRun != 'true'
+        with:
+          tag_name: ${{ needs.check.outputs.RELEASE_TAG }}
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
new file mode 100644
index 0000000..9b55164
--- /dev/null
+++ b/.github/workflows/test.yaml
@@ -0,0 +1,127 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - '*'
+  pull_request:
+    branches:
+      - '*'
+
+  workflow_dispatch:
+    inputs:
+      logLevel:
+        description: Log Level
+        default: info
+        type: choice
+        options:
+          - debug
+          - error
+          - fatal
+          - info
+          - panic
+          - warning
+      environment:
+        description: Environment
+        default: test
+
+jobs:
+  
+  test-amd64:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - platform: linux/amd64
+            dockerfile: Dockerfile.amd64
+            tag: tinyclib:amd64
+            test: amd64
+
+    steps:
+      - name: Docker Setup QEMU
+        if: matrix.platform != 'linux/amd64'
+        uses: docker/setup-qemu-action@v3.6.0 # v3.6.0 - latest as of 2025-04-27
+        with:
+          platforms: all
+
+      - name: Docker Setup Buildx
+        uses: docker/setup-buildx-action@v3.10.0 # v3.10.0 - latest as of 2025-04-27
+
+      - name: Checkout code
+        uses: actions/checkout@v4 # v4.2.2 - latest as of 2025-04-27
+
+      - name: Create Buildx
+        run: |
+          docker buildx create --name tests --use
+          docker buildx inspect --bootstrap
+
+      - name: Build images
+        run: |
+          docker images
+          docker buildx ls --no-trunc
+          docker buildx build --platform ${{ matrix.platform }} -f scripts/tests/docker/${{ matrix.dockerfile }} -t ${{ matrix.tag }} . --load
+          docker images
+  
+      - name: Test
+        run: |
+          for platform in ${{ matrix.platform }}; do
+            for tag in ${{ matrix.tag }}; do
+              echo "Running container for platform: $platform, tag: $tag"
+              docker run --platform $platform $tag
+            done
+          done
+
+  test-arm64:
+    runs-on: ubuntu-24.04-arm
+    strategy:
+      matrix:
+        include:
+          - platform: linux/arm64
+            dockerfile: Dockerfile.arm64
+            tag: tinyclib:arm64
+            test: arm64
+
+          - platform: linux/arm/v6
+            dockerfile: Dockerfile.armv6
+            tag: tinyclib:armv6
+            test: armv6
+
+          - platform: linux/arm/v7
+            dockerfile: Dockerfile.armv7
+            tag: tinyclib:armv7
+            test: armv7
+
+          - platform: linux/arm64/v8
+            dockerfile: Dockerfile.armv8
+            tag: tinyclib:armv8
+            test: armv8
+
+    steps:
+      - name: Docker Setup Buildx
+        uses: docker/setup-buildx-action@v3.10.0 # v3.10.0 - latest as of 2025-04-27
+
+      - name: Checkout code
+        uses: actions/checkout@v4 # v4.2.2 - latest as of 2025-04-27
+
+      - name: Create Buildx
+        run: |
+          docker buildx create --name tests --use
+          docker buildx inspect --bootstrap
+
+      - name: Build images
+        run: |
+          docker images
+          docker buildx ls --no-trunc
+          docker buildx build --platform ${{ matrix.platform }} -f scripts/tests/docker/${{ matrix.dockerfile }} -t ${{ matrix.tag }} . --load
+          docker images
+
+      - name: Test
+        run: |
+          for platform in ${{ matrix.platform }}; do
+            for tag in ${{ matrix.tag }}; do
+              echo "Running container for platform: $platform, tag: $tag"
+              docker run --platform $platform $tag
+            done
+          done
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 932f3bd..b35902f 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -7,9 +7,15 @@
     "editor.defaultFormatter": "ms-vscode.cpptools"
   },
   "cSpell.words": [
+    "armv",
     "CMSIS",
     "ctest",
-    "tinyclib"
+    "Dryrun",
+    "eabi",
+    "libnewlib",
+    "noninteractive",
+    "tinyclib",
+    "trunc"
   ],
   "files.associations": {
     ".clang-format": "yaml",
diff --git a/scripts/tests/docker/Dockerfile.amd64 b/scripts/tests/docker/Dockerfile.amd64
new file mode 100644
index 0000000..583eea6
--- /dev/null
+++ b/scripts/tests/docker/Dockerfile.amd64
@@ -0,0 +1,26 @@
+# Example usage:
+# Build:
+#   docker buildx build --platform linux/amd64 -f scripts/tests/docker/Dockerfile.amd64 -t test:amd64 . --load
+# Run:
+#   docker run --rm -it --platform linux/amd64 test:amd64
+
+# Base
+FROM ubuntu:latest AS base
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    clang \
+    cmake \
+    ninja-build \
+    lld \
+    git \
+    ca-certificates
+
+# Build
+FROM base AS build
+COPY . /test
+WORKDIR /test
+RUN cmake --workflow --preset default
+
+ENTRYPOINT []
+CMD ["ctest", "--preset", "default"]
diff --git a/scripts/tests/docker/Dockerfile.arm64 b/scripts/tests/docker/Dockerfile.arm64
new file mode 100644
index 0000000..cbf0640
--- /dev/null
+++ b/scripts/tests/docker/Dockerfile.arm64
@@ -0,0 +1,28 @@
+# Example usage:
+# Build:
+#   docker buildx build --platform linux/arm64 -f scripts/tests/docker/Dockerfile.arm64 -t test:arm64 . --load
+# Run:
+#   docker run --rm -it --platform linux/arm64 test:arm64
+
+# Base
+FROM ubuntu:latest AS base
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    clang \
+    cmake \
+    ninja-build \
+    lld \
+    git \
+    ca-certificates \
+    gcc-arm-none-eabi \
+    libnewlib-arm-none-eabi
+
+# Build
+FROM base AS build
+COPY . /test
+WORKDIR /test
+RUN cmake --workflow --preset default
+
+ENTRYPOINT []
+CMD ["ctest", "--preset", "default"]
diff --git a/scripts/tests/docker/Dockerfile.armv6 b/scripts/tests/docker/Dockerfile.armv6
new file mode 100644
index 0000000..82c52ec
--- /dev/null
+++ b/scripts/tests/docker/Dockerfile.armv6
@@ -0,0 +1,25 @@
+# Example usage:
+# Build:
+#   docker buildx build --platform linux/arm/v6 -f scripts/tests/docker/Dockerfile.armv6 -t test:armv6 . --load
+# Run:
+#   docker run --rm -it --platform linux/arm/v6 test:armv6
+
+# Base
+FROM arm32v6/alpine:latest AS base
+RUN echo "https://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories && \
+    apk update && apk add --no-cache \
+        build-base clang cmake ninja-build lld \
+        git ca-certificates \
+        binutils-arm-none-eabi \
+        gcc-arm-none-eabi g++-arm-none-eabi \
+        newlib-arm-none-eabi && \
+    ln -s /usr/lib/ninja-build/bin/ninja /usr/bin/ninja
+
+# Build
+FROM base AS build
+COPY . /test
+WORKDIR /test
+RUN cmake --workflow --preset default
+
+ENTRYPOINT []
+CMD ["ctest", "--preset", "default"]
diff --git a/scripts/tests/docker/Dockerfile.armv7 b/scripts/tests/docker/Dockerfile.armv7
new file mode 100644
index 0000000..a15d71d
--- /dev/null
+++ b/scripts/tests/docker/Dockerfile.armv7
@@ -0,0 +1,28 @@
+# Example usage:
+# Build:
+#   docker buildx build --platform linux/arm/v7 -f scripts/tests/docker/Dockerfile.armv7 -t test:armv7 . --load
+# Run:
+#   docker run --rm -it --platform linux/arm/v7 test:armv7
+
+# Base
+FROM arm32v7/ubuntu:latest AS base
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    clang \
+    cmake \
+    ninja-build \
+    lld \
+    git \
+    ca-certificates \
+    gcc-arm-none-eabi \
+    libnewlib-arm-none-eabi
+
+# Build
+FROM base AS build
+COPY . /test
+WORKDIR /test
+RUN cmake --workflow --preset default
+
+ENTRYPOINT []
+CMD ["ctest", "--preset", "default"]
diff --git a/scripts/tests/docker/Dockerfile.armv8 b/scripts/tests/docker/Dockerfile.armv8
new file mode 100644
index 0000000..b6eabda
--- /dev/null
+++ b/scripts/tests/docker/Dockerfile.armv8
@@ -0,0 +1,28 @@
+# Example usage:
+# Build:
+#   docker buildx build --platform linux/arm64/v8 -f scripts/tests/docker/Dockerfile.armv8 -t test:armv8 . --load
+# Run:
+#   docker run --rm -it --platform linux/arm64/v8 test:armv8
+
+# Base
+FROM arm64v8/ubuntu:latest AS base
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    clang \
+    cmake \
+    ninja-build \
+    lld \
+    git \
+    ca-certificates \
+    gcc-arm-none-eabi \
+    libnewlib-arm-none-eabi
+
+# Build
+FROM base AS build
+COPY . /test
+WORKDIR /test
+RUN cmake --workflow --preset default
+
+ENTRYPOINT []
+CMD ["ctest", "--preset", "default"]