diff --git a/.github/workflows/workflow_ci.yml b/.github/workflows/workflow_ci.yml
index f818d4c..eeba7a6 100644
--- a/.github/workflows/workflow_ci.yml
+++ b/.github/workflows/workflow_ci.yml
@@ -50,7 +50,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ['windows-latest', 'macos-15', 'ubuntu-latest']
-        python: ['3.12', '3.13', '3.14', '3.15.0-alpha.1']
+        python: ['3.14']
 
     name: "Python ${{ matrix.python }} / ${{ matrix.os }}"
     runs-on: ${{ matrix.os }}
@@ -92,73 +92,19 @@ jobs:
           python -m unittest discover --verbose
         shell: bash
 
-  pypy_build_build_and_test:
+  cpython_build_with_draco_and_test:
     needs: [check_relevant_changes]
     if: needs.check_relevant_changes.outputs.any_changed == 'true'
 
     strategy:
       fail-fast: false
       matrix:
-        os: ['ubuntu-latest']
-        python: [pypy3.9, pypy3.10]
+        os: ['windows-latest', 'macos-15', 'ubuntu-latest']
+        python: ['3.14']
 
     name: "Python ${{ matrix.python }} / ${{ matrix.os }}"
     runs-on: ${{ matrix.os }}
 
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: update submodules
-        run: git submodule update --init --recursive
-
-      - name: Set up ${{ matrix.python }}
-        uses: actions/setup-python@v5
-        with:
-          python-version: ${{ matrix.python }}
-          architecture: x64
-
-      - name: Display Python version
-        run: |
-          python --version
-          python -c "import sys; print(sys.implementation)"
-
-      - name: Manually install build dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install scikit-build-core>=0.11.5 nanobind build
-
-      - name: Install libuuid (dev headers and linker support)
-        if: runner.os == 'Linux'
-        run: sudo apt-get update && sudo apt-get install -y uuid-dev
-
-      - name: Build wheel without build isolation
-        run: |
-          python -m build --wheel --no-isolation
-
-      - name: Install built wheel
-        run: |
-          pip install --no-deps --ignore-requires-python dist/*.whl
-
-      - name: test ${{ matrix.python }} / ${{ matrix.os }}"
-        run: |
-          cd tests
-          python -m unittest discover --verbose
-        shell: bash
-
-  cpython_build_and_test_clang_on_windows:
-    needs: [check_relevant_changes]
-    if: needs.check_relevant_changes.outputs.any_changed == 'true'
-
-    strategy:
-      fail-fast: false
-      matrix:
-        os: ['windows-latest']
-        python: ['3.12', '3.13', '3.14', '3.15.0-alpha.1']
-
-    name: "Python ${{ matrix.python }} / ${{ matrix.os }} / CLANG"
-    runs-on: ${{ matrix.os }}
-
     steps:
       - name: set up python ${{ matrix.python }}
         uses: actions/setup-python@v5.4.0
@@ -168,14 +114,12 @@ jobs:
       - name: install the latest CMake
         uses: lukka/get-cmake@latest
 
-      - name: install Ninja
-        run: choco install ninja
-
-      - name: install LLVM/Clang
-        uses: egor-tensin/setup-clang@v1
-
       - name: install dependencies
-        run: python -m pip install --upgrade pip setuptools wheel build scikit-build-core nanobind
+        run: python -m pip install --upgrade pip setuptools wheel build scikit-build-core
+
+      - name: Install libuuid (dev headers and linker support)
+        if: runner.os == 'Linux'
+        run: sudo apt-get update && sudo apt-get install -y uuid-dev
 
       - name: checkout
         uses: actions/checkout@v4.1.1
@@ -185,12 +129,8 @@ jobs:
 
       - name: build ${{ matrix.python }} ${{ matrix.os }}
         run: |
-          $env:CC = "clang"
-          $env:CXX = "clang++"
-          $env:SKBUILD_CMAKE_ARGS = "-G Ninja"
-          $env:SKBUILD_CMAKE_DEFINE = "CMAKE_C_COMPILER=clang;CMAKE_CXX_COMPILER=clang++;CMAKE_CXX_FLAGS=-Wno-c++11-narrowing"
-          python -m build --no-isolation
-        shell: pwsh
+          python -m build --cmake-args -DINCLUDE_DRACO=ON
+        shell: bash
 
       - name: install package
         run: |