diff --git a/.github/actions/dev_setup/action.yml b/.github/actions/dev_setup/action.yml
new file mode 100644
index 00000000..75ba882d
--- /dev/null
+++ b/.github/actions/dev_setup/action.yml
@@ -0,0 +1,36 @@
+name: pygl_dev_setup
+description: Installs GardenLinux Python library dev packages
+
+inputs:
+  version:
+    description: GardenLinux Python library version to install
+    default: "0.10.5"
+  python_version:
+    description: Python version to setup
+    default: "3.14"
+
+outputs:
+  version:
+    description: GardenLinux Python library version
+    value: ${{ inputs.version }}
+  python_version:
+    description: Python version to setup
+    value: ${{ inputs.python_version }}
+
+runs:
+  using: composite
+  steps:
+    - name: Set up Python ${{ inputs.python_version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ inputs.python_version }}
+
+    - name: Install Poetry
+      uses: snok/install-poetry@v1
+      with:
+        version: 2.2.1
+
+    - name: Install GardenLinux Python library
+      shell: bash
+      run: |
+        poetry install --with=dev
diff --git a/.github/actions/flavors_parse/action.yml b/.github/actions/flavors_parse/action.yml
index b0d2a9d7..6a8ece2e 100644
--- a/.github/actions/flavors_parse/action.yml
+++ b/.github/actions/flavors_parse/action.yml
@@ -13,7 +13,7 @@ outputs:
 runs:
   using: composite
   steps:
-    - uses: gardenlinux/python-gardenlinux-lib/.github/actions/setup@0.10.5
+    - uses: gardenlinux/python-gardenlinux-lib/.github/actions/setup@255-improve-caching-used-in-gh-actions
     - id: matrix
       shell: bash
       run: |
diff --git a/.github/actions/setup/action.yml b/.github/actions/setup/action.yml
index 50b90361..4606f3d8 100644
--- a/.github/actions/setup/action.yml
+++ b/.github/actions/setup/action.yml
@@ -1,9 +1,9 @@
-name: python_lib
-description: Installs the given GardenLinux Python library
+name: pygl_setup
+description: Installs GardenLinux Python library
 
 inputs:
   version:
-    description: GardenLinux Python library version
+    description: GardenLinux Python library version to install
     default: "0.10.5"
   python_version:
     description: Python version to setup
@@ -16,39 +16,35 @@ outputs:
   python_version:
     description: Python version to setup
     value: ${{ inputs.python_version }}
-  package_tool:
-    description: "Detected Python cache strategy."
-    value: ${{ steps.env-check.outputs.package_tool }}
 
 runs:
   using: composite
   steps:
-    - name: Evaluate Python environment
-      id: env-check
-      shell: bash
-      run: |
-        # Determine cache type based on available lockfile
-        if [ -f poetry.lock ]; then
-          echo "package_tool=poetry" >> $GITHUB_OUTPUT
-        elif [ -f requirements.txt ]; then
-          echo "package_tool=pip" >> $GITHUB_OUTPUT
-        else
-          # no lockfile present: create one and use pip caching
-          echo "gardenlinux @ git+https://github.com/gardenlinux/python-gardenlinux-lib.git@${{ inputs.version }}" | tee -a requirements.txt
-          echo "package_tool=pip" >> $GITHUB_OUTPUT
-        fi
-
-    - name: Install Poetry
-      if: steps.env-check.outputs.package_tool == 'poetry'
-      uses: snok/install-poetry@v1
-
     - name: Set up Python ${{ inputs.python_version }}
       uses: actions/setup-python@v5
       with:
         python-version: ${{ inputs.python_version }}
-        cache: ${{ steps.env-check.outputs.package_tool }}
+
+    - name: Restore python site-packages from cache
+      id: restore-python-cache
+      uses: actions/cache/restore@v4
+      with:
+        path: |
+          ~/.local/lib/python${{ inputs.python_version }}/site-packages
+          ~/.local/bin
+        key: pygl-${{ runner.arch }}-${{ inputs.python_version }}-${{ inputs.version }}
 
     - name: Install GardenLinux Python library
       shell: bash
       run: |
-        pip install git+https://github.com/gardenlinux/python-gardenlinux-lib.git@${{ inputs.version }}
+        pip install --user \
+          https://github.com/gardenlinux/python-gardenlinux-lib/releases/download/${{ inputs.version }}/gardenlinux-${{ inputs.version }}-py3-none-any.whl
+
+    - name: Cache python site-packages
+      id: save-python-cache
+      uses: actions/cache/save@v4
+      with:
+        path: |
+          ~/.local/lib/python${{ inputs.python_version }}/site-packages
+          ~/.local/bin
+        key: pygl-${{ runner.arch }}-${{ inputs.python_version }}-${{ inputs.version }}
diff --git a/.github/workflows/bandit.yml b/.github/workflows/bandit.yml
index d70c8c17..2aefad3e 100644
--- a/.github/workflows/bandit.yml
+++ b/.github/workflows/bandit.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: gardenlinux/python-gardenlinux-lib/.github/actions/setup@main
+      - uses: gardenlinux/python-gardenlinux-lib/.github/actions/dev_setup@255-improve-caching-used-in-gh-actions
       - name: Simple bandit security checks
         run: make security
       - name: Show Report in Action Output
diff --git a/.github/workflows/black.yml b/.github/workflows/black.yml
index 19efe917..bae89407 100644
--- a/.github/workflows/black.yml
+++ b/.github/workflows/black.yml
@@ -7,5 +7,5 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: gardenlinux/python-gardenlinux-lib/.github/actions/setup@main
+      - uses: gardenlinux/python-gardenlinux-lib/.github/actions/dev_setup@255-improve-caching-used-in-gh-actions
       - run: make lint
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 11bd0b73..d98c21f1 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -17,6 +17,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: gardenlinux/python-gardenlinux-lib/.github/actions/setup@main
+      - uses: gardenlinux/python-gardenlinux-lib/.github/actions/dev_setup@255-improve-caching-used-in-gh-actions
       - name: Simple poetry build no package
         run: make build
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 6fff3074..4c91cc6a 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: gardenlinux/python-gardenlinux-lib/.github/actions/setup@main
+      - uses: gardenlinux/python-gardenlinux-lib/.github/actions/dev_setup@255-improve-caching-used-in-gh-actions
       - run: make docs
       - name: Deploy to GitHub Pages
         uses: peaceiris/actions-gh-pages@v4
diff --git a/.github/workflows/pytests.yml b/.github/workflows/pytests.yml
index 95371983..d93d781b 100644
--- a/.github/workflows/pytests.yml
+++ b/.github/workflows/pytests.yml
@@ -20,10 +20,7 @@ jobs:
         with:
           fetch-depth: 2
 
-      - name: Setup Gardenlinux
-        uses: ./.github/actions/setup
-        with:
-          python_version: ${{ matrix.python_version }}
+      - uses: gardenlinux/python-gardenlinux-lib/.github/actions/dev_setup@255-improve-caching-used-in-gh-actions
 
       - name: Install dependencies
         run: poetry install --with dev