diff --git a/.github/actions/setup/action.yml b/.github/actions/setup/action.yml
index 4038ba06..cb48d59f 100644
--- a/.github/actions/setup/action.yml
+++ b/.github/actions/setup/action.yml
@@ -2,13 +2,9 @@ name: 🏗️ Setup Environment
 description: Install Dependencies & Deploy Workarounds
 
 inputs:
-  container:
+  os:
     required: true
-    description: Build container used
-
-  install-vtk:
-    required: true
-    description: Wether or not to install VTK as a system dependency
+    description: Operating System used
 
 runs:
   using: "composite"
@@ -22,19 +18,9 @@ runs:
     - name: 🖥️ Enable MSVC Dev Console
       uses: ilammy/msvc-dev-cmd@v1
 
-    - name: 📋 Install Dependencies
-      shell: bash
-      if: ${{ inputs.container == 'ubuntu-latest' }}
-      run: dnf install -y gcc gcc-c++ kernel-devel cmake ninja-build git docker sed clang-tools-extra
-
     - name: 📋 Install OpenMP
       shell: bash
       if: ${{ inputs.container == 'macos-latest' }}
       run: |
         brew reinstall --build-from-source --formula ./.github/homebrew/libomp.rb
         echo "OpenMP_ROOT=$(brew --prefix)/opt/libomp" >> $GITHUB_ENV
-
-    - name: 📋 Install VTK
-      shell: bash
-      if: ${{ inputs.install-vtk == 'true' }}
-      run: dnf install -y vtk vtk-devel
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 427b179b..cd7c97fd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -17,20 +17,22 @@ jobs:
 
         os:
           - macos-latest
-          - ubuntu-latest
           - windows-latest
 
-        vtk-system: [true, false]
+        include:
+          - os: ubuntu-latest
+            container: ghcr.io/viennatools/vienna-builder:vtk
 
-        exclude:
-          - os: macos-latest
-            vtk-system: true
-
-          - os: windows-latest
-            vtk-system: true
+          - os: ubuntu-latest
+            container: ghcr.io/viennatools/vienna-builder:stock
 
     runs-on: ${{ matrix.os }}
-    container: ${{ matrix.os == 'ubuntu-latest' && 'fedora:38' || null }}
+
+    container:
+      image: ${{ matrix.container }}
+      credentials:
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
 
     name: '🧪 Test on ${{ matrix.os }} ["${{ matrix.config }}", VTK: "${{ matrix.vtk-system }}"]'
 
@@ -41,8 +43,7 @@ jobs:
       - name: 🖥️ Setup Environment
         uses: ./.github/actions/setup
         with:
-          container: ${{ matrix.os }}
-          install-vtk: ${{ matrix.vtk-system }}
+          os: ${{ matrix.os }}
 
       - name: 🦥 Cache Dependencies
         uses: actions/cache@v4
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index b64314e0..f47f23bc 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -12,15 +12,14 @@ on:
 jobs:
   check-coding-style:
     runs-on: ubuntu-latest
-    container: fedora:41
 
-    steps:
-      - name: 🖥️ Setup Environment
-        uses: ./.github/actions/setup
-        with:
-          container: ubuntu-latest
-          install-vtk: true
+    container:
+      image: ghcr.io/viennatools/vienna-builder:vtk
+      credentials:
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
 
+    steps:
       - name: 📥 Checkout
         uses: actions/checkout@v4
 
diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index caa87dd5..f3d6a8e2 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -11,10 +11,19 @@ jobs:
       fail-fast: false
 
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        include:
+          - os: ubuntu-latest
+            container: ghcr.io/viennatools/vienna-builder:stock
+          - os: windows-latest
+          - os: macos-latest
 
     runs-on: ${{ matrix.os }}
-    container: ${{ matrix.os == 'ubuntu-latest' && 'fedora:38' || null }}
+
+    container:
+      image: ${{ matrix.container }}
+      credentials:
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
 
     name: "🐍 Test Bindings on ${{ matrix.os }}"
 
@@ -25,8 +34,7 @@ jobs:
       - name: 🖥️ Setup Environment
         uses: ./.github/actions/setup
         with:
-          container: ${{ matrix.os }}
-          install-vtk: false
+          os: ${{ matrix.os }}
 
       - name: 🐍 Setup Python
         uses: actions/setup-python@v5
@@ -65,10 +73,19 @@ jobs:
       fail-fast: false
 
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        include:
+          - os: ubuntu-latest
+            container: ghcr.io/viennatools/vienna-builder:stock
+          - os: windows-latest
+          - os: macos-latest
 
     runs-on: ${{ matrix.os }}
-    container: ${{ matrix.os == 'ubuntu-latest' && 'fedora:38' || null }}
+
+    container:
+      image: ${{ matrix.container }}
+      credentials:
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
 
     name: "🐍 Package Bindings on ${{ matrix.os }}"
 
@@ -79,8 +96,7 @@ jobs:
       - name: 🖥️ Setup Environment
         uses: ./.github/actions/setup
         with:
-          container: ${{ matrix.os }}
-          install-vtk: false
+          os: ${{ matrix.os }}
 
       - name: 🐍 Setup Python
         uses: actions/setup-python@v5