diff --git a/.github/workflows/ci-linux.yml b/.github/workflows/ci-linux.yml
new file mode 100644
index 0000000..db2e30b
--- /dev/null
+++ b/.github/workflows/ci-linux.yml
@@ -0,0 +1,126 @@
+# SPDX-FileCopyrightText: 2022 - 2023 Peter Urban, Ghent University
+#
+# SPDX-License-Identifier: CC0-1.0
+
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+    
+    paths-ignore:
+      - '.github/workflows/python-package*'
+      - '.github/workflows/cibuildwheels*'
+      - '.github/workflows/conda*'
+      - '.github/workflows/test_*'
+      - 'conda.recipe/*'
+      - '*.md'
+      - 'doc/*'
+    #paths:
+    #  - "**meson.build"
+    #  - "**.cpp"
+    #  - "**.c"
+    #  - "**.h"
+  pull_request:
+    branches: [ main ]
+    
+    paths-ignore:
+      - '.github/workflows/python-package*'
+      - '.github/workflows/cibuildwheels*'
+      - '.github/workflows/conda*'
+      - '.github/workflows/test_*'
+      - 'conda.recipe/*'
+      - '*.md'
+      - 'doc/*'
+    #paths:
+    #  - "**meson.build"
+    #  - "**.cpp"
+    #  - "**.c"
+    #  - "**.h"
+
+
+# make sure that multiple jobs don't run for the same action (new commits cancel old jobs when they are still running)
+# Souce Ralf Gommers (commit to meson-python)
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+# env:
+  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
+  #BUILD_TYPE: Release
+  
+jobs:
+  linux:
+    name: ci on ${{matrix.container}}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:  
+          - { container: 'ghcr.io/themachinethatgoesping/ubuntu-dep:latest',
+              ccache: 'true',
+              pip2: 'pip install -r requirements.txt --break-system-packages' }
+          - { container: 'ubuntu:22.04', 
+              ccache: 'true',
+              pre-dep : 'apt update && apt-get install -y sudo git git-lfs', 
+              dep : 'sudo DEBIAN_FRONTEND=noninteractive apt-get install -y build-essential ccache pkg-config cmake python3-pip libboost-all-dev libcurl4-openssl-dev', 
+              pip : 'pip install meson meson-python ninja pytest numpy',
+              pip2: 'pip install -r requirements.txt'}
+          - { container: 'archlinux', 
+              pre-dep : 'pacman -Syu --noconfirm; pacman -Syy sudo git git-lfs --noconfirm', 
+              dep : 'sudo pacman -Syy --noconfirm base-devel ccache pkg-config cmake python-pip boost curl', 
+              pip : 'pip install meson meson-python ninja pytest numpy --break-system-packages',
+              pip2: 'pip install -r requirements.txt --break-system-packages' }
+    
+    runs-on: ubuntu-latest
+    container: ${{matrix.container}}
+
+    steps:
+    - name: install perquisites
+      if:  ${{matrix.pre-dep}}
+      run: ${{matrix.pre-dep}}
+
+    - name: checkout main repository
+      uses: actions/checkout@v3
+      with:
+        submodules: recursive
+        lfs: false
+    
+    - name: ccache
+      if: ${{ matrix.ccache }}
+      uses: hendrikmuhs/ccache-action@v1.2
+      with:
+        key: super-ci-${{ matrix.container }}  # name for the cache
+
+    - name: install dependencies (c++)
+      if:  ${{matrix.dep}}
+      run: ${{matrix.dep}}
+      
+    - name: install dependencies (meson & python)
+      if:  ${{matrix.pip}}
+      run: ${{matrix.pip}}
+
+    - name: configure meson
+      run: meson setup builddir/; meson configure builddir -Dpython.install_env=auto -Dprefix=/usr/;
+
+    - name: compile project
+      run: meson compile -C builddir/
+
+    - name: test (cpp)
+      run: meson test -C builddir/ --print-errorlogs
+
+    - name: install project
+      run: meson install -C builddir/
+
+    - name: install pip requirements
+      if:  ${{matrix.pip2}}
+      run: ${{matrix.pip2}}
+
+    - name: test (pytest)
+      run: pytest -v
+      
+    - uses: actions/upload-artifact@v1
+      if: failure()
+      with:
+        name: ${{matrix.container}}_testlog
+        path: builddir/meson-logs/testlog.txt
+    
diff --git a/.github/workflows/ci-mac.yml b/.github/workflows/ci-mac.yml
new file mode 100644
index 0000000..e45e1e4
--- /dev/null
+++ b/.github/workflows/ci-mac.yml
@@ -0,0 +1,112 @@
+# SPDX-FileCopyrightText: 2022 - 2023 Peter Urban, Ghent University
+#
+# SPDX-License-Identifier: CC0-1.0
+
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+    
+    paths-ignore:
+      - '.github/workflows/python-package*'
+      - '.github/workflows/cibuildwheels*'
+      - '.github/workflows/conda*'
+      - '.github/workflows/test_*'
+      - 'conda.recipe/*'
+      - '*.md'
+      - 'doc/*'
+    #paths:
+    #  - "**meson.build"
+    #  - "**.cpp"
+    #  - "**.c"
+    #  - "**.h"
+  pull_request:
+    branches: [ main ]
+    
+    paths-ignore:
+      - '.github/workflows/python-package*'
+      - '.github/workflows/cibuildwheels*'
+      - '.github/workflows/conda*'
+      - '.github/workflows/test_*'
+      - 'conda.recipe/*'
+      - '*.md'
+      - 'doc/*'
+    #paths:
+    #  - "**meson.build"
+    #  - "**.cpp"
+    #  - "**.c"
+    #  - "**.h"
+
+
+# make sure that multiple jobs don't run for the same action (new commits cancel old jobs when they are still running)
+# Souce Ralf Gommers (commit to meson-python)
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+# env:
+  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
+  #BUILD_TYPE: Release
+  
+jobs:
+  macos:
+    name: ci on macOS
+    runs-on: macos-12
+    strategy:
+      fail-fast: false
+      matrix:
+        cxx_compiler: ["$(brew --prefix llvm@17)/bin/clang++"]            
+    
+    # env does not work here because is resolved as string and not command 
+    # env:
+    #   CXX: ${{ matrix.cxx_compiler }}
+      
+    steps:
+    
+    - uses: actions/setup-python@v3
+      with:
+        python-version: '3.12'
+        
+    - name: checkout main repository
+      uses: actions/checkout@v3
+      with:
+        submodules: recursive
+        lfs: false
+
+    - name: ccache
+      uses: hendrikmuhs/ccache-action@v1.2
+      with:
+        key: super-ci-mac  # name for the cache
+        
+    # install clang 15
+    - run: brew install coreutils llvm@17
+        
+    - run: brew install libomp boost
+    
+    - run: pip install meson meson-python ninja pytest numpy
+    
+    # LDFLAGS="-L/opt/homebrew/opt/libomp/lib" CPPFLAGS="-I/opt/homebrew/opt/libomp/include" 
+    - name: configure meson
+      run: CXX=${{ matrix.cxx_compiler }} meson setup builddir/; meson configure builddir -Dpython.install_env=auto
+
+    - name: compile project
+      run: meson compile -C builddir/
+
+    - name: test (cpp)
+      run: meson test -C builddir/ --print-errorlogs
+
+    - name: install project
+      run: meson install -C builddir/
+
+    - name: install pip requirements
+      run: pip install -r requirements.txt
+
+    - name: test (pytest)
+      run: pytest -v
+      
+    - uses: actions/upload-artifact@v1
+      if: failure()
+      with:
+        name: ${{matrix.container}}_testlog
+        path: builddir/meson-logs/testlog.txt
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci-windows.yml
similarity index 52%
rename from .github/workflows/ci.yml
rename to .github/workflows/ci-windows.yml
index afb8066..49a3bc1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci-windows.yml
@@ -50,81 +50,7 @@ concurrency:
   #BUILD_TYPE: Release
   
 jobs:
-  linux:
-    name: ci on ${{matrix.container}}
-    strategy:
-      fail-fast: false
-      matrix:
-        include:  
-          - { container: 'ghcr.io/themachinethatgoesping/ubuntu-dep:latest',
-              ccache: 'true',
-              pip2: 'pip install -r requirements.txt --break-system-packages' }
-          - { container: 'ubuntu:22.04', 
-              ccache: 'true',
-              pre-dep : 'apt update && apt-get install -y sudo git git-lfs', 
-              dep : 'sudo DEBIAN_FRONTEND=noninteractive apt-get install -y build-essential ccache pkg-config cmake python3-pip libboost-all-dev libcurl4-openssl-dev', 
-              pip : 'pip install meson meson-python ninja pytest numpy',
-              pip2: 'pip install -r requirements.txt'}
-          - { container: 'archlinux', 
-              pre-dep : 'pacman -Syu --noconfirm; pacman -Syy sudo git git-lfs --noconfirm', 
-              dep : 'sudo pacman -Syy --noconfirm base-devel ccache pkg-config cmake python-pip boost curl', 
-              pip : 'pip install meson meson-python ninja pytest numpy --break-system-packages',
-              pip2: 'pip install -r requirements.txt --break-system-packages' }
-    
-    runs-on: ubuntu-latest
-    container: ${{matrix.container}}
-
-    steps:
-    - name: install perquisites
-      if:  ${{matrix.pre-dep}}
-      run: ${{matrix.pre-dep}}
-
-    - name: checkout main repository
-      uses: actions/checkout@v3
-      with:
-        submodules: recursive
-        lfs: false
-    
-    - name: ccache
-      if: ${{ matrix.ccache }}
-      uses: hendrikmuhs/ccache-action@v1.2
-      with:
-        key: super-ci-${{ matrix.container }}  # name for the cache
-
-    - name: install dependencies (c++)
-      if:  ${{matrix.dep}}
-      run: ${{matrix.dep}}
-      
-    - name: install dependencies (meson & python)
-      if:  ${{matrix.pip}}
-      run: ${{matrix.pip}}
-
-    - name: configure meson
-      run: meson setup builddir/; meson configure builddir -Dpython.install_env=auto -Dprefix=/usr/;
-
-    - name: compile project
-      run: meson compile -C builddir/
-
-    - name: test (cpp)
-      run: meson test -C builddir/ --print-errorlogs
-
-    - name: install project
-      run: meson install -C builddir/
-
-    - name: install pip requirements
-      if:  ${{matrix.pip2}}
-      run: ${{matrix.pip2}}
-
-    - name: test (pytest)
-      run: pytest -v
-      
-    - uses: actions/upload-artifact@v1
-      if: failure()
-      with:
-        name: ${{matrix.container}}_testlog
-        path: builddir/meson-logs/testlog.txt
-    
-
+  
   build-on-windows:
     name: ci on windows
     strategy:
@@ -240,63 +166,3 @@ jobs:
       with:
         name: Windows_Meson_testlog
         path: builddir/meson-logs/testlog.txt
-
-  macos:
-    name: ci on macOS
-    runs-on: macos-12
-    strategy:
-      fail-fast: false
-      matrix:
-        cxx_compiler: ["$(brew --prefix llvm@17)/bin/clang++"]            
-    
-    # env does not work here because is resolved as string and not command 
-    # env:
-    #   CXX: ${{ matrix.cxx_compiler }}
-      
-    steps:
-    
-    - uses: actions/setup-python@v3
-      with:
-        python-version: '3.12'
-        
-    - name: checkout main repository
-      uses: actions/checkout@v3
-      with:
-        submodules: recursive
-        lfs: false
-
-    - name: ccache
-      uses: hendrikmuhs/ccache-action@v1.2
-      with:
-        key: super-ci-mac  # name for the cache
-        
-    # install clang 15
-    - run: brew install coreutils llvm@17
-        
-    - run: brew install libomp boost
-    
-    - run: pip install meson meson-python ninja pytest numpy
-    
-    - name: configure meson
-      run: LDFLAGS="-L/opt/homebrew/opt/libomp/lib" CPPFLAGS="-I/opt/homebrew/opt/libomp/include" BOOST_ROOT="/opt/homebrew/Cellar/boost/1.84.0_1" CXX=${{ matrix.cxx_compiler }} meson setup builddir/; meson configure builddir -Dpython.install_env=auto
-
-    - name: compile project
-      run: meson compile -C builddir/
-
-    - name: test (cpp)
-      run: meson test -C builddir/ --print-errorlogs
-
-    - name: install project
-      run: meson install -C builddir/
-
-    - name: install pip requirements
-      run: pip install -r requirements.txt
-
-    - name: test (pytest)
-      run: pytest -v
-      
-    - uses: actions/upload-artifact@v1
-      if: failure()
-      with:
-        name: ${{matrix.container}}_testlog
-        path: builddir/meson-logs/testlog.txt