diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a6f6e082..e5af851f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,88 +8,50 @@ on:
   release:
     types: [ created ]
 
-env:
-  REFERENCE_CONFIG: 'Ubuntu gcc13' # configuration used for coverage etc
-
 jobs:
   build:
-    name: "${{ matrix.configurations.name }} | ${{ matrix.cmake-build-type }}"
-    environment: configure coverage
-    runs-on: ${{ matrix.configurations.os }}
+    name: "${{ matrix.compiler.cc }} | ${{ matrix.cmake-build-type }}"
+    runs-on: "ubuntu-latest"
+    container:
+      image: "ghcr.io/fair-acc/gr4-build-container:latest"
     strategy:
       fail-fast: false
       matrix:
-        configurations:
-          - name: Ubuntu gcc13
-            os: ubuntu-22.04
-            compiler: gcc13
-          - name: Ubuntu Latest clang17
-            os: ubuntu-22.04
-            compiler: clang17
-          - name: Ubuntu Latest emscripten
-            os: ubuntu-22.04
-            compiler: emscripten
+        compiler:
+          - cc: gcc-14
+            cxx: g++-14
+          - cc: clang-18
+            cxx: clang++-18
+            cmake_flags: "-DCMAKE_LINKER=/usr/bin/clang-18"
+          - cmake_wrapper: emcmake
+            cc: emcc
+            cmake_flags: " -DENABLE_PICOSCOPE=FALSE -DENABLE_TIMING=FALSE -DENABLE_COVERAGE=OFF -DCMAKE_CROSSCOMPILING_EMULATOR=${SYSTEM_NODE}"
         cmake-build-type: [ Release, Debug ]
-    env:
-      BUILD_WRAPPER_OUT_DIR: build_wrapper_output_directory
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         env:
           cache-name: cache-fetchContent-cache
         with:
-          path: ${{runner.workspace}}/build/_deps
-          key: ${{ runner.os }}-${{ matrix.configurations.compiler }}-${{ matrix.cmake-build-type }}-${{ hashFiles('CMakeLists.txt') }}
-
-      - name: Install gcovr
-        # packaged gcovr is too old for gcc13
-        shell: bash
-        if: matrix.configurations.name == env.REFERENCE_CONFIG && matrix.cmake-build-type == 'Debug'
-        run: |
-          python3 -m pip install gcovr --user --no-warn-script-location
-          gcovr --version
-
-      - name: Install gcc-13
-        if: matrix.configurations.compiler == 'gcc13'
-        run: |
-          sudo apt-get install -y gcc-13 g++-13 # gcovr # packaged gcovr is too old for gcc13
-          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-13 110 --slave /usr/bin/g++ g++ /usr/bin/g++-13 --slave /usr/bin/gcov gcov /usr/bin/gcov-13
-
-      - name: Install clang-17
-        if: matrix.configurations.compiler == 'clang17'
-        run: |
-          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
-          sudo add-apt-repository 'deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-17 main'
-          sudo apt update
-          sudo apt upgrade -y # update clang14 to fix packaging conflicts
-          sudo apt install -y clang-17 libc++-17-dev libc++abi-17-dev
-          sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/clang++-17 110
+          path: "/__w/gr-digitizers/build/_deps"
+          key: "${{ matrix.compiler.cc }}-${{ matrix.cmake-build-type }}-${{ hashFiles('CMakeLists.txt') }}"
 
-      - name: Install emscripten
-        if: matrix.configurations.compiler == 'emscripten'
+      - name: "Install pkg-config"
         shell: bash
         run: |
-          cd
-          git clone --depth=1 https://github.com/emscripten-core/emsdk.git
-          cd emsdk
-          # Download and install the latest SDK tools.
-          ./emsdk install releases-bf3c159888633d232c0507f4c76cc156a43c32dc-64bit
-          # Make the "latest" SDK "active" for the current user. (writes .emscripten file)
-          ./emsdk activate releases-bf3c159888633d232c0507f4c76cc156a43c32dc-64bit
-
-      - name: Install sonar-scanner and build-wrapper
-        if: matrix.configurations.compiler == 'gcc13' && matrix.cmake-build-type == 'Debug'
-        uses: SonarSource/sonarcloud-github-c-cpp@v2
+          sudo apt-get update
+          sudo apt-get -y install build-essential pkg-config
 
       - name: "Install timing system dependencies: etherbone"
-        if: matrix.configurations.compiler != 'emscripten'
+        if: matrix.compiler.cmake_wrapper == null
         shell: bash
         run: |
+          sudo apt-get -y install build-essential autoconf automake libtool
           git clone --branch v2.1.3 --depth=1 https://ohwr.org/project/etherbone-core.git
           cd etherbone-core/api
           touch ChangeLog # add an empty changelog file which is required by autotools
@@ -100,7 +62,7 @@ jobs:
           sudo make install
 
       - name: "Install timing system dependencies: saftlib"
-        if: matrix.configurations.compiler != 'emscripten'
+        if: matrix.compiler.cmake_wrapper == null
         shell: bash
         run: |
           sudo apt-get -y install libsigc++-2.0-dev libxslt1-dev libboost-all-dev
@@ -112,7 +74,7 @@ jobs:
           sudo make install
 
       - name: Install picoscope libraries
-        if: matrix.configurations.compiler != 'emscripten'
+        if: matrix.compiler.cmake_wrapper == null
         run: |
           # https://www.picotech.com/downloads/linux
           wget -O - https://labs.picotech.com/Release.gpg.key|sudo apt-key add -
@@ -120,50 +82,59 @@ jobs:
           sudo apt update
           sudo apt install -y udev libusb-1.0-0-dev libps3000a libps4000a libps5000a libps6000 libps6000a libx11-dev libgl1-mesa-dev libsdl2-dev || true # ignore udev errors in post install because of udev in container
 
-      - name: Configure CMake
-        if: matrix.configurations.compiler != 'emscripten'
+      - name: Configure
+        if: matrix.compiler.cmake_wrapper == null
         shell: bash
+        env:
+          CC: "${{ matrix.compiler.cc }}"
+          CXX: "${{ matrix.compiler.cxx }}"
+          CMAKE_EXPORT_COMPILE_COMMANDS: "ON"
         run: |
-          cmake -S . -B ../build -DENABLE_PICOSCOPE=TRUE -DENABLE_TIMING=TRUE -DCMAKE_BUILD_TYPE=${{ matrix.cmake-build-type }} -DENABLE_COVERAGE=${{ matrix.configurations.compiler == 'gcc13' &&  matrix.cmake-build-type == 'Debug'}}
+          cmake -S . -B ../build -DDISABLE_EXTERNAL_DEPS_WARNINGS=ON -DENABLE_PICOSCOPE=TRUE -DENABLE_TIMING=TRUE -DCMAKE_BUILD_TYPE=${{ matrix.cmake-build-type }} -DENABLE_COVERAGE=${{ matrix.compiler.cc == 'gcc-14' && matrix.cmake-build-type == 'Debug'}} ${{ matrix.compiler.cmake_flags }}
 
       - name: Configure CMake Emscripten
-        if: matrix.configurations.compiler == 'emscripten'
+        if: matrix.compiler.cmake_wrapper == 'emcmake'
         shell: bash
         run: |
-          source ~/emsdk/emsdk_env.sh
-          emcmake cmake -S . -B ../build -DENABLE_PICOSCOPE=FALSE -DENABLE_TIMING=FALSE -DCMAKE_BUILD_TYPE=${{ matrix.cmake-build-type }} -DENABLE_COVERAGE=OFF
+          export SYSTEM_NODE=`which node` # use system node instead of old version distributed with emsdk for threading support
+          $EMSDK_HOME/emsdk activate $EMSDK_VERSION
+          source $EMSDK_HOME/emsdk_env.sh
+          ${{ matrix.compiler.cmake_wrapper }} cmake -S . -B ../build -DDISABLE_EXTERNAL_DEPS_WARNINGS=ON -DCMAKE_BUILD_TYPE=${{ matrix.cmake-build-type }} ${{ matrix.compiler.cmake_flags }}
 
       - name: Build
-        if: matrix.configurations.compiler != 'gcc13' || matrix.cmake-build-type != 'Debug'
+        if: matrix.compiler.cmake_wrapper == null
         shell: bash
         run: |
-          test -f ~/emsdk/emsdk_env.sh && source ~/emsdk/emsdk_env.sh
           cmake --build ../build
 
-      - name: Build with Coverage and SonarCube
-        if: matrix.configurations.compiler == 'gcc13' && matrix.cmake-build-type == 'Debug'
+      - name: Build
+        if: matrix.compiler.cmake_wrapper == 'emcmake'
         shell: bash
-        run: build-wrapper-linux-x86-64 --out-dir ${{ env.BUILD_WRAPPER_OUT_DIR }} cmake --build ../build
+        run: |
+          source $EMSDK_HOME/emsdk_env.sh
+          cmake --build ../build
 
       - name: execute tests
-        if: matrix.configurations.compiler != 'gcc13' || matrix.cmake-build-type != 'Debug'
-        working-directory: ${{runner.workspace}}/build
+        if: matrix.compiler.cc != 'gcc-14' || matrix.cmake-build-type != 'Debug'
         shell: bash
-        run: ctest --output-on-failure
+        run: | 
+          cd ../build
+          ctest --output-on-failure
 
       - name: execute tests with coverage
-        if: matrix.configurations.compiler == 'gcc13' && matrix.cmake-build-type == 'Debug'
-        working-directory: ${{runner.workspace}}/build
+        if: matrix.compiler.cc == 'gcc-14' && matrix.cmake-build-type == 'Debug'
+        env:
+          DISABLE_SENSITIVE_TESTS: 1 # disables tests which are sensitive to execution speed and will not run with instrumented code
         shell: bash
-        run: cmake --build . --target coverage
+        run: |
+          cd ../build
+          cmake --build . --target coverage
 
       - name: Run sonar-scanner
-        if: matrix.configurations.compiler == 'gcc13' && matrix.cmake-build-type == 'Debug'
+        if: matrix.compiler.cc == 'gcc-14' && matrix.cmake-build-type == 'Debug'
         shell: bash
         env:
+          SONAR_HOST_URL: https://sonarcloud.io
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
-        run: |
-          test -f ~/emsdk/emsdk_env.sh && source ~/emsdk/emsdk_env.sh
-          sonar-scanner --define sonar.cfamily.build-wrapper-output="${{ env.BUILD_WRAPPER_OUT_DIR }}"
-        # Consult https://docs.sonarcloud.io/advanced-setup/ci-based-analysis/sonarscanner-cli/ for more information and options
+        run: sonar-scanner
diff --git a/CMakeLists.txt b/CMakeLists.txt
index cd054dc3..4a037efe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,7 +29,7 @@ set(ENABLE_TESTING OFF)
 FetchContent_Declare(
     graph-prototype
     GIT_REPOSITORY https://github.com/fair-acc/graph-prototype.git
-    GIT_TAG 3cb5c2aff7046bc3760ccd8f8b701cbde361ecfd # main as of 2024-04-05
+    GIT_TAG 5e15e8478d267a5e74fdd3b310a7483a690fe1b4 # main as of 2024-04-25
 )
 
 FetchContent_Declare(
@@ -38,8 +38,25 @@ FetchContent_Declare(
     GIT_TAG v2.0.1 # latest tag as of 2023-12-19
 )
 
+add_library(gr-digitizers-options INTERFACE)
+include(cmake/CompilerWarnings.cmake)
+set_project_warnings(gr-digitizers-options)
+
 if (EMSCRIPTEN)
     FetchContent_MakeAvailable(graph-prototype ut)
+    set(CMAKE_EXECUTABLE_SUFFIX ".js")
+    target_compile_options(gr-digitizers-options INTERFACE
+        -fwasm-exceptions
+        -pthread
+    )
+    target_link_options(gr-digitizers-options INTERFACE
+        "SHELL:-s ALLOW_MEMORY_GROWTH=1"
+        -fwasm-exceptions
+        -pthread
+        "SHELL:-s PTHREAD_POOL_SIZE=30"
+        "SHELL:-s FETCH=1"
+        "SHELL:-s ASSERTIONS=1"
+    )
 else ()
     if (GR_DIGITIZERS_TOPLEVEL_PROJECT)
         FetchContent_Declare(
@@ -92,10 +109,6 @@ else ()
     endif ()
 endif ()
 
-add_library(gr-digitizers-options INTERFACE)
-include(cmake/CompilerWarnings.cmake)
-set_project_warnings(gr-digitizers-options)
-
 if(CMAKE_CXX_COMPILER MATCHES "/em\\+\\+(-[a-zA-Z0-9.])?$") # if this hasn't been set before via e.g. emcmake
     message(" Transpiling to WASM: using: Emscripten (${CMAKE_CXX_COMPILER})")
     set(EMSCRIPTEN true)
diff --git a/sonar-project.properties b/sonar-project.properties
index 500f31c5..276e6a12 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -14,4 +14,4 @@ sonar.cfamily.cpp23.enabled=true
 
 # exclude benchmark which crashes the Analysis
 #sonar.exclusions=bench/bm_case1.cpp
-sonar.coverageReportPaths=/home/runner/work/gr-digitizers/build/coverage.xml
+sonar.coverageReportPaths=/__w/gr-digitizers/build/coverage.xml