diff --git a/.github/workflows/clang-format-check.yml b/.github/workflows/clang-format-check.yml
index 0fe3a55..ef2627c 100644
--- a/.github/workflows/clang-format-check.yml
+++ b/.github/workflows/clang-format-check.yml
@@ -5,17 +5,20 @@ on: [push, pull_request]
 jobs:
   clang-format:
     runs-on: ubuntu-latest
-    container: debian:stable-slim
     steps:
-
-    - name: Install clang-format
+    - uses: actions/checkout@v3
+    - uses: cvmfs-contrib/github-action-cvmfs@v3.1
+    - name: Start container
       run: |
-        apt-get update
-        apt-get install -y curl git
-        curl -SL https://github.com/muttleyxd/clang-tools-static-binaries/releases/download/master-208096c1/clang-format-14_linux-amd64 > /usr/local/bin/clang-format
-        chmod +x /usr/local/bin/clang-format
-
-    - uses: actions/checkout@v2
+        docker run \
+          -it --name k4Acts_CI \
+          -v ${{ github.workspace }}:/k4Acts \
+          -v /cvmfs:/cvmfs:shared \
+          -d ghcr.io/aidasoft/centos7:latest /bin/bash
 
-    - name: Run format
-      run: ci/format.sh .
+    - name: Check Format
+      run: |
+        docker exec k4Acts_CI /bin/bash -c 'source /cvmfs/sft.cern.ch/lcg/releases/clang/10.0.0-62e61/x86_64-centos7/setup.sh;\
+        clang-format -Werror --verbose --dry-run --style=file  $(find ./k4Acts/ -name "*.cpp" -o -name "*.h" );\
+        exit $?;\
+        '
diff --git a/.github/workflows/downstream-build.yaml b/.github/workflows/downstream-build.yaml
index e763bb4..30ed5c7 100644
--- a/.github/workflows/downstream-build.yaml
+++ b/.github/workflows/downstream-build.yaml
@@ -11,5 +11,5 @@ jobs:
       fail-fast: false
     steps:
     - uses: actions/checkout@v3
-    - uses: cvmfs-contrib/github-action-cvmfs@v3
+    - uses: cvmfs-contrib/github-action-cvmfs@v3.1
     - uses: key4hep/key4hep-actions/downstream-build@main
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9a95d72..c2ed981 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,8 +1,6 @@
 name: linux
 
-on:
-  push:
-  pull_request:
+on: [push, pull_request]
 
 jobs:
   test:
@@ -12,35 +10,27 @@ jobs:
       matrix:
         SETUP: ['/cvmfs/sw.hsf.org/key4hep/setup.sh', '/cvmfs/sw-nightlies.hsf.org/key4hep/setup.sh']
     steps:
-    - uses: actions/checkout@v2
-    - uses: cvmfs-contrib/github-action-cvmfs@v2
+    - uses: actions/checkout@v3
+    - uses: cvmfs-contrib/github-action-cvmfs@v3.1
     - name: Start container
       run: |
-        docker run -it --name CI_container -v ${GITHUB_WORKSPACE}:/Package -v /cvmfs:/cvmfs:shared -d ghcr.io/aidasoft/centos7:latest /bin/bash
-#    - name: CMake Configure
-#      run: |
-#        docker exec CI_container /bin/bash -c 'cd Package;\
-#         mkdir -p build install;\
-#         git submodule init;\
-#         git submodule update;\
-#         source ${{ matrix.SETUP }};\
-#         cd build;\
-#         cmake -DCMAKE_INSTALL_PREFIX=../install -DCMAKE_CXX_STANDARD=17  -DCMAKE_CXX_FLAGS=" -fdiagnostics-color=always " -G Ninja ..;'
-#    - name: Compile 
-#      run: |
-#        docker exec CI_container /bin/bash -c 'cd ./Package;\
-#        source ${{ matrix.SETUP }};\
-#        cd build;\
-#        ninja -k0;'
-#    - name: Install
-#      run: |
-#        docker exec CI_container /bin/bash -c 'cd ./Package;\
-#          source ${{ matrix.SETUP }};\
-#          cd build;\
-#          ninja -k0 install;'
-#    - name: Test
+        docker run \
+          -it --name k4Acts_CI \
+          -v ${{ github.workspace }}:/k4Acts \
+          -v /cvmfs:/cvmfs:shared \
+          -d ghcr.io/aidasoft/centos7:latest /bin/bash
+    - name: Compile
+      run: |
+        docker exec k4Acts_CI /bin/bash -c 'source ${{ matrix.SETUP }};
+          cd k4Acts;
+          mkdir build install; cd build;
+          cmake -G Ninja -D CMAKE_INSTALL_PREFIX=$PWD/../install -D CMAKE_BUILD_TYPE=RelWithDebInfo ..;
+          ninja install;
+        '
+
+#    - name: Run tests (CTest)
 #      run: |
-#        docker exec CI_container /bin/bash -c 'cd ./Package;\
-#        source ${{ matrix.SETUP }};\
-#        cd build;\
-#        ninja -k0 && ctest --output-on-failure;'
+#        docker exec k4Acts_CI /bin/bash -c 'source ${{ matrix.SETUP }};
+#          cd k4Acts/build;
+#          ctest --output-on-failure;
+#        '