diff --git a/.github/actions/build-extension/action.yml b/.github/actions/build-extension/action.yml
new file mode 100644
index 00000000..d3dc63e2
--- /dev/null
+++ b/.github/actions/build-extension/action.yml
@@ -0,0 +1,145 @@
+name: 'Build Extension'
+description: 'Build and test a JupyterLab extension'
+inputs:
+  example:
+    description: 'The example to build'
+    required: true
+  run-ui-tests:
+    description: 'Whether to run UI tests'
+    required: false
+    default: 'false'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Path filter
+      id: filter
+      uses: dorny/paths-filter@v2
+      with:
+        filters: |
+          extension:
+            - '${{ inputs.example }}/**'
+    - name: Cache lerna
+      if: steps.filter.outputs.extension == 'true'
+      uses: actions/cache@v4
+      with:
+        path: '**/node_modules'
+        key: ${{ runner.os }}-lerna-${{ hashFiles('**/package.json') }}
+        restore-keys: ${{ runner.os }}-lerna-
+    - name: Check config files
+      if: steps.filter.outputs.extension == 'true'
+      run: |
+        diff ../hello-world/setup.py setup.py
+        diff ../hello-world/tsconfig.json tsconfig.json
+        diff ../hello-world/.yarnrc.yml .yarnrc.yml
+        diff ../hello-world/ui-tests/jupyter_server_test_config.py ./ui-tests/jupyter_server_test_config.py
+        diff ../hello-world/ui-tests/playwright.config.js ./ui-tests/playwright.config.js
+      shell: bash
+      working-directory: ${{ inputs.example }}
+    - name: Install node
+      if: steps.filter.outputs.extension == 'true'
+      uses: actions/setup-node@v4
+      with:
+        node-version: '18.x'
+    - name: Install Python
+      if: steps.filter.outputs.extension == 'true'
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.11'
+        architecture: 'x64'
+    - name: Get pip cache dir
+      if: steps.filter.outputs.extension == 'true'
+      id: pip-cache
+      run: |
+        echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
+      shell: bash
+    - name: Cache pip
+      if: steps.filter.outputs.extension == 'true'
+      uses: actions/cache@v4
+      with:
+        path: ${{ steps.pip-cache.outputs.dir }}
+        key: ${{ runner.os }}-pip-${{ hashFiles('environment.yml') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+    - name: Install the Python dependencies
+      if: steps.filter.outputs.extension == 'true'
+      run: |
+        python -m pip install --upgrade pip "jupyterlab>=4.0.0"
+      shell: bash
+    # This is challenging to test in collaboration;
+    # got trouble with the file ID service and the uncontrolled auto-save
+    # - if: steps.filter.outputs.extension == 'true' && inputs.example == 'clap-button-message'
+    #   run: |
+    #     python -m pip install jupyter-collaboration
+    - name: Build the extension
+      if: steps.filter.outputs.extension == 'true'
+      run: |
+        # Same commands as in TL;DR to ensure it works
+        touch yarn.lock
+        pip install -e . -v
+        jupyter labextension develop . --overwrite
+      shell: bash
+      working-directory: ${{ inputs.example }}
+    - name: Lint the files
+      if: steps.filter.outputs.extension == 'true'
+      run: jlpm run lint:check
+      shell: bash
+      working-directory: ${{ inputs.example }}
+    - name: Check extension installation
+      if: steps.filter.outputs.extension == 'true'
+      run: |
+        jupyter labextension list 2>&1 | tee labextension.list
+        cat labextension.list | grep -ie "@jupyterlab-examples/*.*OK"
+      shell: bash
+      working-directory: ${{ inputs.example }}
+    # clap-button-message example will have one plugin failing as it is requiring a
+    # Jupyter Notebook specific token. This is expected. Hence we need to skip this
+    # test for that example
+    - name: Browser check
+      if: steps.filter.outputs.extension == 'true' && inputs.example != 'clap-button-message'
+      run: |
+        python -m jupyterlab.browser_check
+      shell: bash
+
+    - name: Install galata
+      if: steps.filter.outputs.extension == 'true' && inputs.run-ui-tests == 'true'
+      working-directory: ${{ inputs.example }}/ui-tests
+      env:
+        PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
+      run: jlpm install
+      shell: bash
+    - name: Set up browser cache
+      if: steps.filter.outputs.extension == 'true' && inputs.run-ui-tests == 'true'
+      uses: actions/cache@v4
+      with:
+        path: |
+          ${{ github.workspace }}/pw-browsers
+        key: ${{ runner.os }}-${{ hashFiles('yarn.lock') }}
+    - name: Install browser
+      if: steps.filter.outputs.extension == 'true' && inputs.run-ui-tests == 'true'
+      run: jlpm playwright install chromium
+      working-directory: ${{ inputs.example }}/ui-tests
+      shell: bash
+    - name: Install kernel-output dependencies
+      if: steps.filter.outputs.extension == 'true' && inputs.example == 'kernel-output'
+      run: pip install numpy pandas
+      shell: bash
+    - name: Integration tests
+      if: steps.filter.outputs.extension == 'true' && inputs.run-ui-tests == 'true'
+      working-directory: ${{ inputs.example }}/ui-tests
+      run: jlpm playwright test
+      shell: bash
+    - name: Upload UI Test artifacts
+      if: steps.filter.outputs.extension == 'true' && inputs.run-ui-tests == 'true' && always()
+      uses: actions/upload-artifact@v4
+      with:
+        name: ${{ inputs.example }}-ui-test-output
+        path: |
+          ${{ inputs.example }}/ui-tests/test-results
+    - name: Uninstall extension
+      if: steps.filter.outputs.extension == 'true' && (runner.os == 'Linux' || runner.os == 'macOS')
+      run: |
+        export NAME=`python -c "import tomllib; print(tomllib.load(open('pyproject.toml', 'rb'))['project']['name'])"`
+        pip uninstall -y ${NAME}
+      shell: bash
+      working-directory: ${{ inputs.example }}
\ No newline at end of file
diff --git a/.github/actions/build-serverextension/action.yml b/.github/actions/build-serverextension/action.yml
new file mode 100644
index 00000000..b7d62faa
--- /dev/null
+++ b/.github/actions/build-serverextension/action.yml
@@ -0,0 +1,154 @@
+name: 'Build Server Extension'
+description: 'Build and test the JupyterLab server extension'
+inputs:
+  run-ui-tests:
+    description: 'Whether to run UI tests'
+    required: false
+    default: 'false'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Path filter
+      id: filter
+      uses: dorny/paths-filter@v2
+      with:
+        filters: |
+          extension:
+            - 'server-extension/**'
+    - name: Cache lerna
+      if: steps.filter.outputs.extension == 'true'
+      uses: actions/cache@v4
+      with:
+        path: '**/node_modules'
+        key: ${{ runner.os }}-lerna-${{ hashFiles('server-extension/package.json') }}
+        restore-keys: ${{ runner.os }}-lerna-
+    - name: Install node
+      if: steps.filter.outputs.extension == 'true'
+      uses: actions/setup-node@v4
+      with:
+        node-version: '18.x'
+    - name: Check config files
+      if: steps.filter.outputs.extension == 'true'
+      run: |
+        diff hello-world/setup.py server-extension/setup.py
+        diff hello-world/tsconfig.json server-extension/tsconfig.json
+        diff hello-world/.yarnrc.yml server-extension/.yarnrc.yml
+        diff hello-world/ui-tests/jupyter_server_test_config.py server-extension/ui-tests/jupyter_server_test_config.py
+        diff hello-world/ui-tests/playwright.config.js server-extension/ui-tests/playwright.config.js
+      shell: bash
+    - name: Install Python
+      if: steps.filter.outputs.extension == 'true'
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.11'
+        architecture: 'x64'
+    - name: Get pip cache dir
+      if: steps.filter.outputs.extension == 'true'
+      id: pip-cache
+      run: |
+        echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
+      shell: bash
+    - name: Cache pip
+      if: steps.filter.outputs.extension == 'true'
+      uses: actions/cache@v4
+      with:
+        path: ${{ steps.pip-cache.outputs.dir }}
+        key: ${{ runner.os }}-pip-${{ hashFiles('environment.yml') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+    - name: Install the Python dependencies
+      if: steps.filter.outputs.extension == 'true'
+      run: |
+        python -m pip install --upgrade pip jupyterlab~=4.0.0 build
+      shell: bash
+    - name: Install the NPM dependencies
+      if: steps.filter.outputs.extension == 'true'
+      run: |
+        cd server-extension
+        jlpm
+      shell: bash
+    - name: Lint the files
+      if: steps.filter.outputs.extension == 'true'
+      run: |
+        cd server-extension
+        jlpm run lint:check
+      shell: bash
+    - name: Build extension as user
+      if: steps.filter.outputs.extension == 'true'
+      # Force the usage of the source distribution (good practice)
+      run: |
+        cd server-extension
+        python -m build --sdist
+        pip install ./dist/jupyterlab_examples_server* --pre --find-links=dist --no-cache-dir
+        python -m jupyterlab.browser_check
+      shell: bash
+    - name: Check extension as dev
+      if: steps.filter.outputs.extension == 'true' && (runner.os == 'Linux' || runner.os == 'macOS')
+      run: |
+        jupyter server extension list 2>&1 | tee serverextension.list
+        cat serverextension.list | grep -ie "jupyterlab_examples_server.*OK"
+        jupyter labextension list 2>&1 | tee labextension.list
+        cat labextension.list | grep -ie "@jupyterlab-examples/server-extension.*OK"
+      shell: bash
+    - name: Clean extension installation
+      if: steps.filter.outputs.extension == 'true'
+      run: |
+        pip uninstall -y jupyterlab_examples_server
+        jupyter lab clean
+        jupyter server extension list
+        jupyter labextension list
+      shell: bash
+    - name: Build extension as dev
+      if: steps.filter.outputs.extension == 'true'
+      run: |
+        cd server-extension
+        pip install .
+      shell: bash
+    - name: Check extension as dev
+      if: steps.filter.outputs.extension == 'true' && (runner.os == 'Linux' || runner.os == 'macOS')
+      run: |
+        jupyter server extension list 2>&1 | tee serverextension.list
+        cat serverextension.list | grep -ie "jupyterlab_examples_server.*OK"
+        jupyter labextension list 2>&1 | tee labextension.list
+        cat labextension.list | grep -ie "@jupyterlab-examples/server-extension.*OK"
+        python -m jupyterlab.browser_check
+      shell: bash
+
+    - name: Install galata
+      if: steps.filter.outputs.extension == 'true' && inputs.run-ui-tests == 'true'
+      working-directory: server-extension/ui-tests
+      env:
+        PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
+      run: jlpm install
+      shell: bash
+    - name: Set up browser cache
+      if: steps.filter.outputs.extension == 'true' && inputs.run-ui-tests == 'true'
+      uses: actions/cache@v4
+      with:
+        path: |
+          ${{ github.workspace }}/pw-browsers
+        key: ${{ runner.os }}-${{ hashFiles('yarn.lock') }}
+    - name: Install browser
+      if: steps.filter.outputs.extension == 'true' && inputs.run-ui-tests == 'true'
+      run: jlpm playwright install chromium
+      working-directory: server-extension/ui-tests
+      shell: bash
+    - name: Integration tests
+      if: steps.filter.outputs.extension == 'true' && inputs.run-ui-tests == 'true'
+      working-directory: server-extension/ui-tests
+      run: jlpm playwright test
+      shell: bash
+    - name: Upload UI Test artifacts
+      if: steps.filter.outputs.extension == 'true' && inputs.run-ui-tests == 'true' && always()
+      uses: actions/upload-artifact@v4
+      with:
+        name: server-extension-ui-test-output
+        path: |
+          server-extension/ui-tests/test-results
+    - name: Uninstall extension
+      if: steps.filter.outputs.extension == 'true' && (runner.os == 'Linux' || runner.os == 'macOS')
+      run: |
+        export NAME=`python -c "import tomllib; print(tomllib.load(open('server-extension/pyproject.toml', 'rb'))['project']['name'])"`
+        pip uninstall -y ${NAME}
+      shell: bash
\ No newline at end of file
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6061ef18..56f0c442 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -7,13 +7,13 @@ on:
     branches: '*'
 
 jobs:
-  build_extensions:
-    runs-on: ${{ matrix.os }}
+  build_extensions_linux:
+    runs-on: ubuntu-latest
 
     strategy:
       fail-fast: false
       matrix:
-        example:
+        example: 
           - clap-button-message
           - cell-toolbar
           - codemirror-extension
@@ -43,279 +43,94 @@ jobs:
           - toolbar-button
           - toparea-text-widget
           - widgets
-        os: [ubuntu-latest, macos-latest, windows-latest]
 
-    defaults:
-      run:
-        working-directory: ${{ matrix.example }}
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Path filter
-        id: filter
-        uses: dorny/paths-filter@v2
-        with:
-          filters: |
-            extension:
-              - '${{ matrix.example }}/**'
-      - name: Cache lerna
-        if: steps.filter.outputs.extension == 'true'
-        uses: actions/cache@v4
-        with:
-          path: '**/node_modules'
-          key: ${{ runner.os }}-lerna-${{ hashFiles('**/package.json') }}
-          restore-keys: ${{ runner.os }}-lerna-
-      - name: Check config files
-        if: steps.filter.outputs.extension == 'true'
-        run: |
-          diff ../hello-world/setup.py setup.py
-          diff ../hello-world/tsconfig.json tsconfig.json
-          diff ../hello-world/.yarnrc.yml .yarnrc.yml
-          diff ../hello-world/ui-tests/jupyter_server_test_config.py ./ui-tests/jupyter_server_test_config.py
-          diff ../hello-world/ui-tests/playwright.config.js ./ui-tests/playwright.config.js
-        shell: bash
-      - name: Install node
-        if: steps.filter.outputs.extension == 'true'
-        uses: actions/setup-node@v4
-        with:
-          node-version: '18.x'
-      - name: Install Python
-        if: steps.filter.outputs.extension == 'true'
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.11'
-          architecture: 'x64'
-      - name: Get pip cache dir
-        if: steps.filter.outputs.extension == 'true'
-        id: pip-cache
-        run: |
-          echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
-        shell: bash
-      - name: Cache pip
-        if: steps.filter.outputs.extension == 'true'
-        uses: actions/cache@v4
-        with:
-          path: ${{ steps.pip-cache.outputs.dir }}
-          key: ${{ runner.os }}-pip-${{ hashFiles('environment.yml') }}
-          restore-keys: |
-            ${{ runner.os }}-pip-
-      - name: Install the Python dependencies
-        if: steps.filter.outputs.extension == 'true'
-        run: |
-          python -m pip install --upgrade pip "jupyterlab>=4.0.0"
-      # This is challenging to test in collaboration;
-      # got trouble with the file ID service and the uncontrolled auto-save
-      # - if: steps.filter.outputs.extension == 'true' && matrix.example == 'clap-button-message'
-      #   run: |
-      #     python -m pip install jupyter-collaboration
-      - name: Build the extension
-        if: steps.filter.outputs.extension == 'true'
-        run: |
-          # Same commands as in TL;DR to ensure it works
-          touch yarn.lock
-          pip install -e . -v
-          jupyter labextension develop . --overwrite
-        shell: bash
-      - name: Lint the files
-        if: steps.filter.outputs.extension == 'true'
-        run: jlpm run lint:check
-      - name: Check extension installation
-        if: steps.filter.outputs.extension == 'true'
-        run: |
-          jupyter labextension list 2>&1 | tee labextension.list
-          cat labextension.list | grep -ie "@jupyterlab-examples/*.*OK"
-      # clap-button-message example will have one plugin failing as it is requiring a
-      # Jupyter Notebook specific token. This is expected. Hence we need to skip this
-      # test for that example
-      - if: steps.filter.outputs.extension == 'true' && matrix.example != 'clap-button-message'
-        run: |
-          python -m jupyterlab.browser_check
-
-      - name: Install galata
-        if: steps.filter.outputs.extension == 'true' && startsWith(runner.os, 'Linux')
-        working-directory: ${{ matrix.example }}/ui-tests
-        env:
-          PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
-        run: jlpm install
-      - name: Set up browser cache
-        if: steps.filter.outputs.extension == 'true' && startsWith(runner.os, 'Linux')
-        uses: actions/cache@v4
+      - name: Build extension
+        uses: ./.github/actions/build-extension
         with:
-          path: |
-            ${{ github.workspace }}/pw-browsers
-          key: ${{ runner.os }}-${{ hashFiles('yarn.lock') }}
-      - name: Install browser
-        if: steps.filter.outputs.extension == 'true' && startsWith(runner.os, 'Linux')
-        run: jlpm playwright install chromium
-        working-directory: ${{ matrix.example }}/ui-tests
-      - name: Install kernel-output dependencies
-        if: steps.filter.outputs.extension == 'true' && matrix.example == 'kernel-output'
-        run: pip install numpy pandas
-      - name: Integration tests
-        if: steps.filter.outputs.extension == 'true' && startsWith(runner.os, 'Linux')
-        working-directory: ${{ matrix.example }}/ui-tests
-        run: jlpm playwright test
-      - name: Upload UI Test artifacts
-        if: steps.filter.outputs.extension == 'true' && startsWith(runner.os, 'Linux') && always()
-        uses: actions/upload-artifact@v4
-        with:
-          name: ${{ matrix.example }}-ui-test-output
-          path: |
-            ${{ matrix.example }}/ui-tests/test-results
-      - name: Uninstall extension
-        if: steps.filter.outputs.extension == 'true' && ( startsWith(runner.os, 'Linux') || startsWith(runner.os, 'macOS') )
-        run: |
-          export NAME=`python -c "import tomllib; print(tomllib.load(open('pyproject.toml', 'rb'))['project']['name'])"`
-          pip uninstall -y ${NAME}
+          example: ${{ matrix.example }}
+          run-ui-tests: 'true'
 
-  build_serverextension:
+  build_extensions_cross_platform:
+    needs: build_extensions_linux
     runs-on: ${{ matrix.os }}
+
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        example: 
+          - clap-button-message
+          - cell-toolbar
+          - codemirror-extension
+          - command-palette
+          - commands
+          - completer
+          - contentheader
+          - context-menu
+          - custom-log-console
+          - datagrid
+          - documents
+          - hello-world
+          - launcher
+          - kernel-messaging
+          - kernel-output
+          - log-messages
+          - main-menu
+          - metadata-form
+          - mimerenderer
+          - notifications
+          - react-widget
+          - server-extension
+          - settings
+          - shout-button-message
+          - signals
+          - state
+          - toolbar-button
+          - toparea-text-widget
+          - widgets
+        os: [macos-latest, windows-latest]
+
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Path filter
-        id: filter
-        uses: dorny/paths-filter@v2
-        with:
-          filters: |
-            extension:
-              - 'server-extension/**'
-      - name: Cache lerna
-        if: steps.filter.outputs.extension == 'true'
-        uses: actions/cache@v4
-        with:
-          path: '**/node_modules'
-          key: ${{ runner.os }}-lerna-${{ hashFiles('server-extension/package.json') }}
-          restore-keys: ${{ runner.os }}-lerna-
-      - name: Install node
-        if: steps.filter.outputs.extension == 'true'
-        uses: actions/setup-node@v4
-        with:
-          node-version: '18.x'
-      - name: Check config files
-        if: steps.filter.outputs.extension == 'true'
-        run: |
-          diff hello-world/setup.py server-extension/setup.py
-          diff hello-world/tsconfig.json server-extension/tsconfig.json
-          diff hello-world/.yarnrc.yml server-extension/.yarnrc.yml
-          diff hello-world/ui-tests/jupyter_server_test_config.py server-extension/ui-tests/jupyter_server_test_config.py
-          diff hello-world/ui-tests/playwright.config.js server-extension/ui-tests/playwright.config.js
-        shell: bash
-      - name: Install Python
-        if: steps.filter.outputs.extension == 'true'
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.11'
-          architecture: 'x64'
-      - name: Get pip cache dir
-        if: steps.filter.outputs.extension == 'true'
-        id: pip-cache
-        run: |
-          echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
-        shell: bash
-      - name: Cache pip
-        if: steps.filter.outputs.extension == 'true'
-        uses: actions/cache@v4
+      - name: Build extension
+        uses: ./.github/actions/build-extension
         with:
-          path: ${{ steps.pip-cache.outputs.dir }}
-          key: ${{ runner.os }}-pip-${{ hashFiles('environment.yml') }}
-          restore-keys: |
-            ${{ runner.os }}-pip-
-      - name: Install the Python dependencies
-        if: steps.filter.outputs.extension == 'true'
-        run: |
-          python -m pip install --upgrade pip jupyterlab~=4.0.0 build
-      - name: Install the NPM dependencies
-        if: steps.filter.outputs.extension == 'true'
-        run: |
-          cd server-extension
-          jlpm
-      - name: Lint the files
-        if: steps.filter.outputs.extension == 'true'
-        run: |
-          cd server-extension
-          jlpm run lint:check
-      - name: Build extension as user
-        if: steps.filter.outputs.extension == 'true'
-        # Force the usage of the source distribution (good practice)
-        run: |
-          cd server-extension
-          python -m build --sdist
-          pip install ./dist/jupyterlab_examples_server* --pre --find-links=dist --no-cache-dir
-          python -m jupyterlab.browser_check
-      - name: Check extension as dev
-        if: steps.filter.outputs.extension == 'true' && ( startsWith(runner.os, 'Linux') || startsWith(runner.os, 'macOS') )
-        run: |
-          jupyter server extension list 2>&1 | tee serverextension.list
-          cat serverextension.list | grep -ie "jupyterlab_examples_server.*OK"
-          jupyter labextension list 2>&1 | tee labextension.list
-          cat labextension.list | grep -ie "@jupyterlab-examples/server-extension.*OK"
-      - name: Clean extension installation
-        if: steps.filter.outputs.extension == 'true'
-        run: |
-          pip uninstall -y jupyterlab_examples_server
-          jupyter lab clean
-          jupyter server extension list
-          jupyter labextension list
-      - name: Build extension as dev
-        if: steps.filter.outputs.extension == 'true'
-        run: |
-          cd server-extension
-          pip install .
-      - name: Check extension as dev
-        if: steps.filter.outputs.extension == 'true' && ( startsWith(runner.os, 'Linux') || startsWith(runner.os, 'macOS') )
-        run: |
-          jupyter server extension list 2>&1 | tee serverextension.list
-          cat serverextension.list | grep -ie "jupyterlab_examples_server.*OK"
-          jupyter labextension list 2>&1 | tee labextension.list
-          cat labextension.list | grep -ie "@jupyterlab-examples/server-extension.*OK"
-          python -m jupyterlab.browser_check
+          example: ${{ matrix.example }}
+          run-ui-tests: 'false'
 
-      - name: Install galata
-        if: steps.filter.outputs.extension == 'true' && startsWith(runner.os, 'Linux')
-        working-directory: server-extension/ui-tests
-        env:
-          PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
-        run: jlpm install
-      - name: Set up browser cache
-        if: steps.filter.outputs.extension == 'true' && startsWith(runner.os, 'Linux')
-        uses: actions/cache@v4
-        with:
-          path: |
-            ${{ github.workspace }}/pw-browsers
-          key: ${{ runner.os }}-${{ hashFiles('yarn.lock') }}
-      - name: Install browser
-        if: steps.filter.outputs.extension == 'true' && startsWith(runner.os, 'Linux')
-        run: jlpm playwright install chromium
-        working-directory: server-extension/ui-tests
-      - name: Integration tests
-        if: steps.filter.outputs.extension == 'true' && startsWith(runner.os, 'Linux')
-        working-directory: server-extension/ui-tests
-        run: jlpm playwright test
-      - name: Upload UI Test artifacts
-        if: steps.filter.outputs.extension == 'true' && startsWith(runner.os, 'Linux') && always()
-        uses: actions/upload-artifact@v4
+  build_serverextension_linux:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build server extension
+        uses: ./.github/actions/build-serverextension
         with:
-          name: ui-test-output
-          path: |
-            server-extension/ui-tests/test-results
-      - name: Uninstall extension
-        if: steps.filter.outputs.extension == 'true' && ( startsWith(runner.os, 'Linux') || startsWith(runner.os, 'macOS') )
-        run: |
-          export NAME=`python -c "import tomllib; print(tomllib.load(open('server-extension/pyproject.toml', 'rb'))['project']['name'])"`
-          pip uninstall -y ${NAME}
+          run-ui-tests: 'true'
 
-  build_all:
+  build_serverextension_cross_platform:
+    needs: build_serverextension_linux
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [macos-latest, windows-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build server extension
+        uses: ./.github/actions/build-serverextension
+        with:
+          run-ui-tests: 'false'
+
+  build_all:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
     steps:
       - name: Checkout
         uses: actions/checkout@v4