diff --git a/.github/actions/bootstrap-poetry/action.yml b/.github/actions/bootstrap-poetry/action.yml
new file mode 100644
index 00000000000..e33e9af07b9
--- /dev/null
+++ b/.github/actions/bootstrap-poetry/action.yml
@@ -0,0 +1,34 @@
+name: Bootstrap Poetry
+description: Configure the environment with the specified Python and Poetry version.
+
+inputs:
+  python-version:
+    description: Desired Python version
+    default: "3.12"
+  python-latest:
+    description: Use an uncached Python if a newer match is available
+    default: 'false'
+  poetry-spec:
+    description: pip-compatible installation specification to use for Poetry
+    default: 'poetry'
+
+runs:
+  using: composite
+  steps:
+    # Enable handling long path names (+260 char) on the Windows platform
+    # https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#maximum-path-length-limitation
+    - id: git-config-longpaths
+      if: runner.os == 'Windows'
+      shell: pwsh
+      run: git config --system core.longpaths true
+
+    - id: pipx-poetry
+      shell: bash
+      run: pipx install '${{ inputs.poetry-spec }}'
+
+    - id: setup-python
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ inputs.python-version }}
+        check-latest: ${{ inputs.python-latest == 'true' }}
+        cache: poetry
diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 5ab22316e6f..619dd1e99e3 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -33,43 +33,36 @@ jobs:
         with:
           repository: python-poetry/website
 
-      - name: Bootstrap poetry
-        run: pipx install poetry
-
       - name: Checkout Poetry Source
         uses: actions/checkout@v4
         with:
           path: poetry
           ref: ${{ github.event.pull_request.head.sha }}
 
-      - name: Set up Python
-        uses: actions/setup-python@v5
+      - uses: actions/setup-node@v4
         with:
-          python-version: "3.12"
-          cache: poetry
+          node-version: "18"
 
-      - name: Setup Node
-        uses: actions/setup-node@v4
+      - uses: peaceiris/actions-hugo@v2
         with:
-          node-version: "18"
+          hugo-version: '0.83.1'
 
-      - name: Build Assets
-        run: npm ci && npm run prod
+      - uses: ./.github/actions/bootstrap-poetry
 
-      - name: Fetch Documentation
-        run: |
-          poetry install --no-root --only main
-          poetry run python bin/website build --local ./poetry
+      - run: poetry install --no-root --only main
 
-      - name: Install Hugo
-        uses: peaceiris/actions-hugo@v2
-        with:
-          hugo-version: '0.83.1'
+      - name: Build Website
+        run: |
+          set -eux -o pipefail
 
-      - name: Build
-        run: hugo -v --minify
+          # Rebuild the docs files from the PR checkout.
+          poetry run python bin/website build --local ./poetry
+          # Build website assets (CSS/JS).
+          npm ci && npm run prod
+          # Build the static website.
+          hugo -v --minify
 
-      - name: Deploy
+      - name: Deploy Website
         uses: amondnet/vercel-action@v25
         id: vercel-action
         with:
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 07b1d0f58ab..6eed82e4a94 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -48,23 +48,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Bootstrap poetry
-        run: pipx install poetry
+      - uses: ./.github/actions/bootstrap-poetry
 
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.12"
-          cache: poetry
-
-      - name: Configure poetry
-        run: |
-          poetry config virtualenvs.in-project true
-          poetry config virtualenvs.options.no-pip true
-          poetry config virtualenvs.options.no-setuptools true
-
-      - name: Install dependencies
-        run: poetry install --only main,test
+      - run: poetry install --only main,test
 
       - name: Regenerate PyPI fixtures
         run: PYTHONPATH="$PWD" poetry run python tests/repositories/fixtures/pypi.org/generate.py
@@ -92,38 +78,18 @@ jobs:
       - uses: actions/checkout@v4
         if: needs.changes.outputs.pytest == 'true'
 
-      - name: Bootstrap poetry
-        if: needs.changes.outputs.pytest == 'true'
-        run: pipx install poetry
-
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+      - uses: ./.github/actions/bootstrap-poetry
         if: needs.changes.outputs.pytest == 'true'
         with:
           python-version: ${{ matrix.python-version }}
-          cache: poetry
-
-      - name: Enable long paths for git on Windows
-        if: needs.changes.outputs.pytest == 'true' && matrix.os == 'Windows'
-        # Enable handling long path names (+260 char) on the Windows platform
-        # https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#maximum-path-length-limitation
-        run: git config --system core.longpaths true
 
-      - name: Configure poetry
+      - run: poetry install --with github-actions
         if: needs.changes.outputs.pytest == 'true'
-        run: |
-          poetry config virtualenvs.in-project true
-          poetry config virtualenvs.options.no-pip true
-          poetry config virtualenvs.options.no-setuptools true
 
       - name: Check lock file
         if: needs.changes.outputs.pytest == 'true'
         run: poetry check --lock
 
-      - name: Install dependencies
-        if: needs.changes.outputs.pytest == 'true'
-        run: poetry install --with github-actions
-
       - name: Run mypy
         if: needs.changes.outputs.pytest == 'true'
         run: poetry run mypy