diff --git a/.github/actions/restore-or-build-venv/action.yml b/.github/actions/restore-or-build-venv/action.yml
new file mode 100644
index 00000000000..e9955c5a2cd
--- /dev/null
+++ b/.github/actions/restore-or-build-venv/action.yml
@@ -0,0 +1,125 @@
+name: Set up Python and restore or build the venv
+description: >-
+  Sets up uv and the managed interpreter, then restores the full venv from the
+  cache. On a miss it rebuilds the venv from requirements instead of
+  hard-failing, so jobs survive a transient miss when the entry is evicted under
+  the repo cache size limit. Only the prepare job sets save to true and writes
+  the cache, so the validating jobs add no extra cache pressure.
+
+inputs:
+  python-version:
+    description: The Python version uv should install and use.
+    required: true
+  uv-version:
+    description: The uv version setup-uv should install.
+    required: true
+  python-cache-key:
+    description: The shared python_cache_key from the info job.
+    required: true
+  uv-cache-dir:
+    description: The uv cache directory (env.UV_CACHE_DIR from the caller).
+    required: true
+  apt-cache-version:
+    description: The apt cache version (env.APT_CACHE_VERSION from the caller).
+    required: true
+  save:
+    description: Whether to save the rebuilt venv and uv cache. Only the prepare job should.
+    default: "false"
+
+outputs:
+  python-version:
+    description: The Python version uv reports as installed.
+    value: ${{ steps.python.outputs.python-version }}
+
+runs:
+  using: composite
+  steps:
+    - name: Set up uv and managed Python
+      id: python
+      uses: ./.github/actions/setup-uv-python
+      with:
+        uv-version: ${{ inputs.uv-version }}
+        python-version: ${{ inputs.python-version }}
+    - name: Restore full Python virtual environment
+      id: cache-venv
+      uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+      with:
+        path: venv
+        key: >-
+          ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
+          inputs.python-cache-key }}
+    - name: Generate partial uv restore key
+      if: steps.cache-venv.outputs.cache-hit != 'true'
+      id: generate-uv-key
+      shell: bash
+      env:
+        RUNNER_OS: ${{ runner.os }}
+        RUNNER_ARCH: ${{ runner.arch }}
+        PYTHON_VERSION: ${{ steps.python.outputs.python-version }}
+        HASH_FILES: ${{ hashFiles('requirements.txt', 'requirements_all.txt', 'requirements_test.txt', 'homeassistant/package_constraints.txt') }}
+      run: |
+        partial_key="${RUNNER_OS}-${RUNNER_ARCH}-${PYTHON_VERSION}-uv-"
+        echo "partial_key=${partial_key}" >> $GITHUB_OUTPUT
+        echo "full_key=${partial_key}${HASH_FILES}" >> $GITHUB_OUTPUT
+    - name: Restore uv wheel cache
+      if: steps.cache-venv.outputs.cache-hit != 'true'
+      uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+      with:
+        path: ${{ inputs.uv-cache-dir }}
+        key: ${{ steps.generate-uv-key.outputs.full_key }}
+        restore-keys: ${{ steps.generate-uv-key.outputs.partial_key }}
+    # Only runs on a cache miss when the venv is rebuilt. Composite steps cannot
+    # set timeout-minutes, so a stuck apt download is bounded by the job-level
+    # timeout instead of a per-step cap.
+    - name: Install additional OS dependencies
+      if: steps.cache-venv.outputs.cache-hit != 'true'
+      uses: ./.github/actions/cache-apt-packages
+      with:
+        packages: >-
+          bluez
+          ffmpeg
+          libturbojpeg
+          libxml2-utils
+          libavcodec-dev
+          libavdevice-dev
+          libavfilter-dev
+          libavformat-dev
+          libavutil-dev
+          libswresample-dev
+          libswscale-dev
+          libudev-dev
+        version: ${{ inputs.apt-cache-version }}
+        execute_install_scripts: true
+    - name: Create Python virtual environment
+      if: steps.cache-venv.outputs.cache-hit != 'true'
+      id: create-venv
+      shell: bash
+      env:
+        PYTHON_VERSION: ${{ steps.python.outputs.python-version }}
+      run: |
+        uv venv venv --python "${PYTHON_VERSION}"
+        . venv/bin/activate
+        python --version
+        uv pip install -r requirements.txt
+        uv pip install -r requirements_all.txt -r requirements_test.txt
+        uv pip install -e . --config-settings editable_mode=compat
+    - name: Prune uv cache
+      if: inputs.save == 'true' && steps.cache-venv.outputs.cache-hit != 'true'
+      shell: bash
+      run: |
+        . venv/bin/activate
+        uv cache prune --ci
+    - name: Save uv wheel cache
+      if: inputs.save == 'true' && steps.cache-venv.outputs.cache-hit != 'true'
+      uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+      with:
+        path: ${{ inputs.uv-cache-dir }}
+        key: ${{ steps.generate-uv-key.outputs.full_key }}
+    - name: Save full Python virtual environment
+      if: always() && inputs.save == 'true' && steps.create-venv.outcome == 'success'
+      uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+      with:
+        path: venv
+        key: >-
+          ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
+          inputs.python-cache-key }}
diff --git a/.github/actions/setup-uv-python/action.yml b/.github/actions/setup-uv-python/action.yml
new file mode 100644
index 00000000000..821640ac06b
--- /dev/null
+++ b/.github/actions/setup-uv-python/action.yml
@@ -0,0 +1,46 @@
+name: Set up uv and managed Python
+description: >-
+  Pins uv (avoids the raw.githubusercontent.com manifest fetch on cache miss)
+  and proactively installs the requested Python so cached venvs created with
+  `uv venv` resolve their interpreter symlinks in jobs that only restore the
+  venv. setup-uv alone only sets UV_PYTHON, it does not actually fetch the
+  interpreter until uv first uses it, so jobs that just activate the venv
+  blow up with broken symlinks on cache hit.
+
+inputs:
+  python-version:
+    description: The Python version uv should install and use.
+    required: true
+  uv-version:
+    description: The uv version setup-uv should install.
+    required: true
+
+outputs:
+  python-version:
+    description: The Python version uv reports as installed.
+    value: ${{ steps.uv.outputs.python-version }}
+
+runs:
+  using: composite
+  steps:
+    - name: Set up uv
+      id: uv
+      uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
+      with:
+        version: ${{ inputs.uv-version }}
+        python-version: ${{ inputs.python-version }}
+        # Persist astral's managed Python across jobs so 'uv venv' below is
+        # fast on the second job onwards.
+        cache-python: true
+        # Lint-only and codegen jobs touch no Python deps, so the post-step
+        # cache save would otherwise abort the job.
+        ignore-nothing-to-cache: true
+    # setup-uv only sets UV_PYTHON; it does not fetch the interpreter until uv
+    # first uses it. Jobs that only restore and activate a cached venv never
+    # trigger that lazy install, so without this step they hit broken
+    # interpreter symlinks on a cache hit.
+    - name: Install Python interpreter
+      shell: bash
+      env:
+        PYTHON_VERSION: ${{ inputs.python-version }}
+      run: uv python install "${PYTHON_VERSION}"
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 265ea6a0c6f..e74f3e694ce 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -37,7 +37,7 @@ on:
         type: boolean
 
 env:
-  CACHE_VERSION: 3
+  CACHE_VERSION: 4
   MYPY_CACHE_VERSION: 1
   HA_SHORT_VERSION: "2026.8"
   ADDITIONAL_PYTHON_VERSIONS: "[]"
@@ -89,6 +89,8 @@ jobs:
       mariadb_groups: ${{ steps.info.outputs.mariadb_groups }}
       postgresql_groups: ${{ steps.info.outputs.postgresql_groups }}
       python_versions: ${{ steps.info.outputs.python_versions }}
+      default_python: ${{ steps.info.outputs.default_python }}
+      uv_version: ${{ steps.info.outputs.uv_version }}
       test_full_suite: ${{ steps.info.outputs.test_full_suite }}
       test_group_count: ${{ steps.info.outputs.test_group_count }}
       test_groups: ${{ steps.info.outputs.test_groups }}
@@ -235,6 +237,11 @@ jobs:
           echo "postgresql_groups=${postgresql_groups}" >> $GITHUB_OUTPUT
           echo "python_versions: ${all_python_versions}"
           echo "python_versions=${all_python_versions}" >> $GITHUB_OUTPUT
+          echo "default_python: ${default_python}"
+          echo "default_python=${default_python}" >> $GITHUB_OUTPUT
+          uv_version=$(grep '^uv==' requirements.txt | cut -d'=' -f3)
+          echo "uv_version: ${uv_version}"
+          echo "uv_version=${uv_version}" >> $GITHUB_OUTPUT
           echo "test_full_suite: ${test_full_suite}"
           echo "test_full_suite=${test_full_suite}" >> $GITHUB_OUTPUT
           echo "integrations_glob: ${integrations_glob}"
@@ -344,82 +351,18 @@ jobs:
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python ${{ matrix.python-version }} and build venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
+          uv-version: ${{ needs.info.outputs.uv_version }}
           python-version: ${{ matrix.python-version }}
-          check-latest: true
-      - name: Restore base Python virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
-      - name: Generate partial uv restore key
-        if: steps.cache-venv.outputs.cache-hit != 'true'
-        id: generate-uv-key
-        env:
-          RUNNER_OS: ${{ runner.os }}
-          RUNNER_ARCH: ${{ runner.arch }}
-          PYTHON_VERSION: ${{ steps.python.outputs.python-version }}
-          HASH_FILES: ${{ hashFiles('requirements.txt', 'requirements_all.txt', 'requirements_test.txt', 'homeassistant/package_constraints.txt') }}
-        run: |
-          partial_key="${RUNNER_OS}-${RUNNER_ARCH}-${PYTHON_VERSION}-uv-"
-          echo "partial_key=${partial_key}" >> $GITHUB_OUTPUT
-          echo "full_key=${partial_key}${HASH_FILES}" >> $GITHUB_OUTPUT
-      - name: Restore uv wheel cache
-        if: steps.cache-venv.outputs.cache-hit != 'true'
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: ${{ env.UV_CACHE_DIR }}
-          key: ${{ steps.generate-uv-key.outputs.full_key }}
-          restore-keys: ${{ steps.generate-uv-key.outputs.partial_key }}
-      - name: Install additional OS dependencies
-        if: steps.cache-venv.outputs.cache-hit != 'true'
-        timeout-minutes: 10
-        uses: ./.github/actions/cache-apt-packages
-        with:
-          packages: >-
-            bluez
-            ffmpeg
-            libturbojpeg
-            libxml2-utils
-            libavcodec-dev
-            libavdevice-dev
-            libavfilter-dev
-            libavformat-dev
-            libavutil-dev
-            libswresample-dev
-            libswscale-dev
-            libudev-dev
-          version: ${{ env.APT_CACHE_VERSION }}
-          execute_install_scripts: true
-      - name: Read uv version from requirements.txt
-        if: steps.cache-venv.outputs.cache-hit != 'true'
-        id: read-uv-version
-        run: |
-          echo "version=$(grep '^uv==' requirements.txt | cut -d'=' -f3)" >> "$GITHUB_OUTPUT"
-      - name: Set up uv
-        if: steps.cache-venv.outputs.cache-hit != 'true'
-        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
-        with:
-          version: ${{ steps.read-uv-version.outputs.version }}
-      - name: Create Python virtual environment
-        if: steps.cache-venv.outputs.cache-hit != 'true'
-        id: create-venv
-        run: |
-          python -m venv venv
-          . venv/bin/activate
-          python --version
-          uv pip install -r requirements.txt
-          uv pip install -r requirements_all.txt -r requirements_test.txt
-          uv pip install -e . --config-settings editable_mode=compat
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
+          save: "true"
       - name: Dump pip freeze
         run: |
-          python -m venv venv
           . venv/bin/activate
           python --version
           uv pip freeze >> pip_freeze.txt
@@ -434,26 +377,6 @@ jobs:
       - name: Check dirty
         run: |
           ./script/check_dirty
-      - name: Prune uv cache
-        if: steps.cache-venv.outputs.cache-hit != 'true'
-        id: prune-uv-cache
-        run: |
-          . venv/bin/activate
-          uv cache prune --ci
-      - name: Save uv wheel cache
-        if: steps.cache-venv.outputs.cache-hit != 'true'
-        uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: ${{ env.UV_CACHE_DIR }}
-          key: ${{ steps.generate-uv-key.outputs.full_key }}
-      - name: Save base Python virtual environment
-        if: always() && steps.create-venv.outcome == 'success'
-        uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
 
   hassfest:
     name: Check hassfest
@@ -478,21 +401,15 @@ jobs:
         with:
           packages: libturbojpeg
           version: ${{ env.APT_CACHE_VERSION }}
-      - name: Set up Python
+      - name: Set up Python and restore venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
-          python-version-file: ".python-version"
-          check-latest: true
-      - name: Restore full Python virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          uv-version: ${{ needs.info.outputs.uv_version }}
+          python-version: ${{ needs.info.outputs.default_python }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Run hassfest
         run: |
           . venv/bin/activate
@@ -515,21 +432,15 @@ jobs:
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
-      - name: Set up Python
+      - name: Set up Python and restore venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
-          python-version-file: ".python-version"
-          check-latest: true
-      - name: Restore full Python virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          uv-version: ${{ needs.info.outputs.uv_version }}
+          python-version: ${{ needs.info.outputs.default_python }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Run gen_requirements_all.py
         run: |
           . venv/bin/activate
@@ -553,13 +464,13 @@ jobs:
           persist-credentials: false
       - name: Set up Python
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/setup-uv-python
         with:
-          python-version-file: ".python-version"
-          check-latest: true
+          uv-version: ${{ needs.info.outputs.uv_version }}
+          python-version: ${{ needs.info.outputs.default_python }}
       - name: Run gen_copilot_instructions.py
         run: |
-          python -m script.gen_copilot_instructions validate
+          uv run --no-project python -m script.gen_copilot_instructions validate
 
   dependency-review:
     name: Dependency review
@@ -606,21 +517,15 @@ jobs:
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python ${{ matrix.python-version }} and restore venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
+          uv-version: ${{ needs.info.outputs.uv_version }}
           python-version: ${{ matrix.python-version }}
-          check-latest: true
-      - name: Restore full Python ${{ matrix.python-version }} virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Extract license data
         env:
           PYTHON_VERSION: ${{ matrix.python-version }}
@@ -657,21 +562,15 @@ jobs:
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
-      - name: Set up Python
+      - name: Set up Python and restore venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
-          python-version-file: ".python-version"
-          check-latest: true
-      - name: Restore full Python virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          uv-version: ${{ needs.info.outputs.uv_version }}
+          python-version: ${{ needs.info.outputs.default_python }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Register pylint problem matcher
         run: |
           echo "::add-matcher::.github/workflows/matchers/pylint.json"
@@ -710,21 +609,15 @@ jobs:
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
-      - name: Set up Python
+      - name: Set up Python and restore venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
-          python-version-file: ".python-version"
-          check-latest: true
-      - name: Restore full Python virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          uv-version: ${{ needs.info.outputs.uv_version }}
+          python-version: ${{ needs.info.outputs.default_python }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Register pylint problem matcher
         run: |
           echo "::add-matcher::.github/workflows/matchers/pylint.json"
@@ -761,27 +654,21 @@ jobs:
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
-      - name: Set up Python
-        id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
-        with:
-          python-version-file: ".python-version"
-          check-latest: true
       - name: Generate partial mypy restore key
         id: generate-mypy-key
         run: |
           mypy_version=$(cat requirements_test.txt | grep 'mypy.*=' | cut -d '=' -f 3)
           echo "version=${mypy_version}" >> $GITHUB_OUTPUT
           echo "key=mypy-${MYPY_CACHE_VERSION}-${mypy_version}-${HA_SHORT_VERSION}-$(date -u '+%Y-%m-%dT%H:%M:%s')" >> $GITHUB_OUTPUT
-      - name: Restore full Python virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+      - name: Set up Python and restore venv
+        id: python
+        uses: ./.github/actions/restore-or-build-venv
         with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          uv-version: ${{ needs.info.outputs.uv_version }}
+          python-version: ${{ needs.info.outputs.default_python }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Restore mypy cache
         uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
@@ -838,21 +725,15 @@ jobs:
             libturbojpeg
           version: ${{ env.APT_CACHE_VERSION }}
           execute_install_scripts: true
-      - name: Set up Python
+      - name: Set up Python and restore venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
-          python-version-file: ".python-version"
-          check-latest: true
-      - name: Restore full Python virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          uv-version: ${{ needs.info.outputs.uv_version }}
+          python-version: ${{ needs.info.outputs.default_python }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Run split_tests.py
         env:
           TEST_GROUP_COUNT: ${{ needs.info.outputs.test_group_count }}
@@ -903,21 +784,15 @@ jobs:
             libxml2-utils
           version: ${{ env.APT_CACHE_VERSION }}
           execute_install_scripts: true
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python ${{ matrix.python-version }} and restore venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
+          uv-version: ${{ needs.info.outputs.uv_version }}
           python-version: ${{ matrix.python-version }}
-          check-latest: true
-      - name: Restore full Python ${{ matrix.python-version }} virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Register Python problem matcher
         run: |
           echo "::add-matcher::.github/workflows/matchers/python.json"
@@ -1045,21 +920,15 @@ jobs:
             libxml2-utils
           version: ${{ env.APT_CACHE_VERSION }}
           execute_install_scripts: true
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python ${{ matrix.python-version }} and restore venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
+          uv-version: ${{ needs.info.outputs.uv_version }}
           python-version: ${{ matrix.python-version }}
-          check-latest: true
-      - name: Restore full Python ${{ matrix.python-version }} virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Register Python problem matcher
         run: |
           echo "::add-matcher::.github/workflows/matchers/python.json"
@@ -1201,21 +1070,15 @@ jobs:
         with:
           packages: postgresql-server-dev-14
           version: ${{ env.APT_CACHE_VERSION }}
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python ${{ matrix.python-version }} and restore venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
+          uv-version: ${{ needs.info.outputs.uv_version }}
           python-version: ${{ matrix.python-version }}
-          check-latest: true
-      - name: Restore full Python ${{ matrix.python-version }} virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Register Python problem matcher
         run: |
           echo "::add-matcher::.github/workflows/matchers/python.json"
@@ -1369,21 +1232,15 @@ jobs:
             libxml2-utils
           version: ${{ env.APT_CACHE_VERSION }}
           execute_install_scripts: true
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python ${{ matrix.python-version }} and restore venv
         id: python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: ./.github/actions/restore-or-build-venv
         with:
+          uv-version: ${{ needs.info.outputs.uv_version }}
           python-version: ${{ matrix.python-version }}
-          check-latest: true
-      - name: Restore full Python ${{ matrix.python-version }} virtual environment
-        id: cache-venv
-        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
-        with:
-          path: venv
-          fail-on-cache-miss: true
-          key: >-
-            ${{ runner.os }}-${{ runner.arch }}-${{ steps.python.outputs.python-version }}-${{
-            needs.info.outputs.python_cache_key }}
+          python-cache-key: ${{ needs.info.outputs.python_cache_key }}
+          uv-cache-dir: ${{ env.UV_CACHE_DIR }}
+          apt-cache-version: ${{ env.APT_CACHE_VERSION }}
       - name: Register Python problem matcher
         run: |
           echo "::add-matcher::.github/workflows/matchers/python.json"