diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..ee4307a
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,40 @@
+name: CI
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+  push:
+    branches: [ main, develop, feature/** ]
+  pull_request:
+    branches: [ main, develop, feature/** ]
+
+permissions:
+  contents: read
+
+jobs:
+  tests:
+    uses: myerscode/workflows/.github/workflows/php-tests.yml@v1
+    with:
+      php-versions: "['8.5']"
+      os: "['ubuntu-latest', 'macos-latest', 'windows-latest']"
+      extensions: "json"
+
+  lint:
+    uses: myerscode/workflows/.github/workflows/php-lint.yml@v1
+    with:
+      php-version: "8.5"
+      extensions: "json"
+
+  audit:
+    uses: myerscode/workflows/.github/workflows/php-security-audit.yml@v1
+    with:
+      php-version: "8.5"
+      extensions: "json"
+
+  coverage:
+    uses: myerscode/workflows/.github/workflows/php-coverage.yml@v1
+    with:
+      php-version: "8.5"
+      extensions: "json"
+    secrets:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
deleted file mode 100644
index c9baddf..0000000
--- a/.github/workflows/codecov.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-name: codecov
-
-on:
-  schedule:
-    - cron: "0 0 * * *"
-  push:
-    branches: [ main ]
-
-permissions:
-  contents: read
-
-jobs:
-  run:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ ubuntu-latest ]
-        php-versions: [ '8.5' ]
-
-    name: PHP ${{ matrix.php-versions }} - ${{ matrix.os }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v7
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: ${{ matrix.php-versions }}
-          coverage: xdebug
-          extensions: json
-      - name: Install dependencies
-        run: composer install --prefer-dist --no-progress --no-interaction
-      - name: Run Test Suite
-        run: vendor/bin/phpunit --testdox --coverage-clover ./coverage.xml
-      - name: Code Coverage
-        uses: codecov/codecov-action@v7
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          files: ./coverage.xml
-          verbose: true
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d8e39fc..d6d1ae7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -4,123 +4,21 @@ on:
   workflow_dispatch:
     inputs:
       version:
-        description: 'Version (e.g. 2026.0.0 or 1.2.3)'
+        description: 'CalVer version (e.g. 2026.0.0)'
         required: true
         type: string
-      scheme:
-        description: 'Version scheme'
-        required: true
-        type: choice
-        options:
-          - calver
-          - semver
-        default: calver
   push:
     tags:
       - '[0-9][0-9][0-9][0-9].*'
 
 permissions:
   contents: write
-  pull-requests: write
 
 jobs:
   release:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v7
-        with:
-          ref: main
-          fetch-depth: 0
-          token: ${{ secrets.PAT || secrets.GITHUB_TOKEN }}
-          persist-credentials: true
-
-      - name: Determine version and scheme
-        id: version
-        run: |
-          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
-            TAG="${{ github.event.inputs.version }}"
-            SCHEME="${{ github.event.inputs.scheme }}"
-          else
-            TAG="${GITHUB_REF_NAME}"
-            if echo "$TAG" | grep -qE '^[0-9]{4}\.[0-9]+\.[0-9]+$'; then
-              SCHEME="calver"
-            else
-              SCHEME="semver"
-            fi
-          fi
-          echo "tag=$TAG" >> "$GITHUB_OUTPUT"
-          echo "scheme=$SCHEME" >> "$GITHUB_OUTPUT"
-
-      - name: Validate version format
-        run: |
-          TAG="${{ steps.version.outputs.tag }}"
-          SCHEME="${{ steps.version.outputs.scheme }}"
-          if [ "$SCHEME" = "calver" ]; then
-            if ! echo "$TAG" | grep -qE '^[0-9]{4}\.[0-9]+\.[0-9]+$'; then
-              echo "Error: Version must be in CalVer format YYYY.MINOR.PATCH (e.g. 2026.0.0)"
-              exit 1
-            fi
-          else
-            if ! echo "$TAG" | grep -qE '^[0-9]+\.[0-9]+\.[0-9]+$'; then
-              echo "Error: Version must be in SemVer format MAJOR.MINOR.PATCH (e.g. 1.2.3)"
-              exit 1
-            fi
-          fi
-
-      - name: Create and push tag
-        if: github.event_name == 'workflow_dispatch'
-        run: |
-          git tag "${{ steps.version.outputs.tag }}"
-          git push origin "${{ steps.version.outputs.tag }}"
-
-      - name: Get previous tag
-        id: previous
-        run: |
-          CURRENT="${{ steps.version.outputs.tag }}"
-          PREVIOUS=$(git tag --list --sort=-version:refname '[0-9]*' | grep -v "^${CURRENT}$" | head -1)
-          if [ -n "$PREVIOUS" ]; then
-            echo "tag=$PREVIOUS" >> "$GITHUB_OUTPUT"
-            echo "found=true" >> "$GITHUB_OUTPUT"
-          else
-            echo "tag=" >> "$GITHUB_OUTPUT"
-            echo "found=false" >> "$GITHUB_OUTPUT"
-          fi
-
-      - name: Generate changelog
-        if: steps.previous.outputs.found == 'true'
-        id: changelog
-        uses: requarks/changelog-action@v1
-        with:
-          token: ${{ github.token }}
-          fromTag: ${{ steps.version.outputs.tag }}
-          toTag: ${{ steps.previous.outputs.tag }}
-          excludeTypes: build,docs,other,style,ci,chore
-          useGitmojis: false
-          writeToFile: false
-
-      - name: Create GitHub release
-        uses: softprops/action-gh-release@v3
-        with:
-          tag_name: ${{ steps.version.outputs.tag }}
-          name: ${{ steps.version.outputs.tag }}
-          body: ${{ steps.changelog.outputs.changes || 'Initial release' }}
-
-      - name: Write changelog to file
-        if: steps.previous.outputs.found == 'true'
-        uses: requarks/changelog-action@v1
-        with:
-          token: ${{ github.token }}
-          fromTag: ${{ steps.version.outputs.tag }}
-          toTag: ${{ steps.previous.outputs.tag }}
-          excludeTypes: build,docs,other,style,ci,chore
-          useGitmojis: false
-          writeToFile: true
-
-      - name: Commit updated CHANGELOG
-        if: steps.previous.outputs.found == 'true'
-        uses: stefanzweifel/git-auto-commit-action@v7
-        with:
-          branch: main
-          commit_message: "docs: update CHANGELOG for ${{ steps.version.outputs.tag }}"
-          file_pattern: CHANGELOG.md
+    uses: myerscode/workflows/.github/workflows/php-release.yml@v1
+    with:
+      version: ${{ github.event.inputs.version }}
+      scheme: calver
+    secrets:
+      PAT: ${{ secrets.PAT }}
diff --git a/.github/workflows/security-audit.yml b/.github/workflows/security-audit.yml
deleted file mode 100644
index 2c4d7b8..0000000
--- a/.github/workflows/security-audit.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-name: Security Audit
-
-on:
-  schedule:
-    - cron: "0 6 * * *"
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-permissions:
-  contents: read
-
-jobs:
-  audit:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v7
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: '8.5'
-          extensions: json
-      - name: Install dependencies
-        run: composer install --prefer-dist --no-progress --no-interaction
-      - name: Run security audit
-        run: composer audit
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
deleted file mode 100644
index 433f860..0000000
--- a/.github/workflows/tests.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: Tests
-
-on:
-  schedule:
-    - cron: "0 0 * * *"
-  push:
-    branches: [ main, develop, feature/** ]
-  pull_request:
-    branches: [ main, develop, feature/** ]
-
-permissions:
-  contents: read
-
-jobs:
-  run:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        php-versions: [ '8.5' ]
-
-    name: PHP ${{ matrix.php-versions }} - ${{ matrix.os }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v7
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: ${{ matrix.php-versions }}
-          extensions: json
-      - name: Install dependencies
-        run: composer install --prefer-dist --no-progress --no-interaction
-      - name: Run test suite
-        run: vendor/bin/phpunit --testdox --no-coverage
diff --git a/.github/workflows/update-changelog.yml b/.github/workflows/update-changelog.yml
new file mode 100644
index 0000000..dd1623a
--- /dev/null
+++ b/.github/workflows/update-changelog.yml
@@ -0,0 +1,20 @@
+name: Update Changelog
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Release version to regenerate changelog for'
+        required: true
+        type: string
+
+permissions:
+  contents: write
+
+jobs:
+  changelog:
+    uses: myerscode/workflows/.github/workflows/php-changelog.yml@v1
+    with:
+      version: ${{ github.event.inputs.version }}
+    secrets:
+      PAT: ${{ secrets.PAT }}