diff --git a/.github/workflows/backend.yaml b/.github/workflows/backend.yaml
new file mode 100644
index 00000000..5ae429c7
--- /dev/null
+++ b/.github/workflows/backend.yaml
@@ -0,0 +1,81 @@
+name: backend
+on:
+  workflow_call:
+
+jobs:
+  pylint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.10"
+      - name: Install dependencies
+        run: pip install -e '.[dev,test]'
+      - name: Analysing the code with pylint
+        run: make pylint
+
+  mypy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.10"
+      - name: Install dependencies
+        run: pip install -e '.[dev,test]'
+      - name: Analysing the code with mypy
+        run: make mypy
+
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        python-version:
+        - "3.10"
+        - "3.11"
+        os: [ubuntu-latest]
+    services:
+      postgres:
+        image: postgres
+        env:
+          POSTGRES_PASSWORD: "password"
+          POSTGRES_USER: "abrechnung"
+          POSTGRES_DB: "abrechnung"
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
+    env:
+      TEST_DB_USER: "abrechnung"
+      TEST_DB_HOST: "localhost"
+      TEST_DB_DATABASE: "abrechnung"
+      TEST_DB_PASSWORD: "password"
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: pip install -e '.[dev,test]'
+      - name: Run all tests
+        run: pytest tests --doctest-modules --junitxml=junit/test-results.xml --cov=com --cov-report=xml --cov-report=html
+
+  format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v2
+        with:
+          python-version: "3.10"
+      - name: Install dependencies
+        run: pip install -e '.[dev,test]'
+      - name: Check formatting
+        run: make check-format
diff --git a/.github/workflows/ci_testing.yaml b/.github/workflows/frontend.yaml
similarity index 52%
rename from .github/workflows/ci_testing.yaml
rename to .github/workflows/frontend.yaml
index afe59ab6..96848beb 100644
--- a/.github/workflows/ci_testing.yaml
+++ b/.github/workflows/frontend.yaml
@@ -1,88 +1,9 @@
-name: Tests
+name: frontend
 on:
-  push:
-    branches: [ "master" ]
-  pull_request:
+  workflow_call:
 
 jobs:
-  pylint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python 3.10
-        uses: actions/setup-python@v2
-        with:
-          python-version: "3.10"
-      - name: Install dependencies
-        run: pip install -e '.[dev,test]'
-      - name: Analysing the code with pylint
-        run: make pylint
-
-  mypy:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python 3.10
-        uses: actions/setup-python@v2
-        with:
-          python-version: "3.10"
-      - name: Install dependencies
-        run: pip install -e '.[dev,test]'
-      - name: Analysing the code with mypy
-        run: make mypy
-
-  test:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        python-version:
-        - "3.10"
-        - "3.11"
-        os: [ubuntu-latest]
-    services:
-      postgres:
-        image: postgres
-        env:
-          POSTGRES_PASSWORD: "password"
-          POSTGRES_USER: "abrechnung"
-          POSTGRES_DB: "abrechnung"
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
-        ports:
-          - 5432:5432
-    env:
-      TEST_DB_USER: "abrechnung"
-      TEST_DB_HOST: "localhost"
-      TEST_DB_DATABASE: "abrechnung"
-      TEST_DB_PASSWORD: "password"
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python-version }}
-      - name: Install dependencies
-        run: pip install -e '.[dev,test]'
-      - name: Run all tests
-        run: pytest tests --doctest-modules --junitxml=junit/test-results.xml --cov=com --cov-report=xml --cov-report=html
-
   format:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python 3.10
-        uses: actions/setup-python@v2
-        with:
-          python-version: "3.10"
-      - name: Install dependencies
-        run: pip install -e '.[dev,test]'
-      - name: Check formatting
-        run: make check-format
-
-  format-frontend:
     runs-on: ubuntu-latest
     defaults:
       run:
@@ -100,7 +21,7 @@ jobs:
       - name: Check JavaScript formatting
         run: npx prettier --check .
 
-  build-web:
+  test:
     runs-on: ubuntu-latest
     defaults:
       run:
@@ -116,9 +37,9 @@ jobs:
       - name: Install dependencies
         run: npm ci
       - name: Build web app
-        run: npx nx build web
-  
-  test-frontend:
+        run: npx nx run-many --target test
+
+  lint:
     runs-on: ubuntu-latest
     defaults:
       run:
@@ -134,9 +55,9 @@ jobs:
       - name: Install dependencies
         run: npm ci
       - name: Build web app
-        run: npx nx run-many --target test
-  
-  lint-frontend:
+        run: npx nx run-many --target lint
+
+  build-web:
     runs-on: ubuntu-latest
     defaults:
       run:
@@ -152,7 +73,7 @@ jobs:
       - name: Install dependencies
         run: npm ci
       - name: Build web app
-        run: npx nx run-many --target lint
+        run: npx nx build web
 
   build-app:
     runs-on: ubuntu-latest
@@ -170,7 +91,7 @@ jobs:
       - name: Install dependencies
         run: npm ci
       - name: Setup Android SDK
-        uses: actions/setup-android@v2
+        uses: android-actions/setup-android@v2
       - name: Setup Gradle
         uses: gradle/gradle-build-action@v2
       - name: Build web app
@@ -179,4 +100,4 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: app-debug-apk
-          path: frontend/apps/mobile/android/app/build/outputs/apk/debug/app-debug.apk
\ No newline at end of file
+          path: frontend/apps/mobile/android/app/build/outputs/apk/debug/app-debug.apk
diff --git a/.github/workflows/pull_request.yaml b/.github/workflows/pull_request.yaml
new file mode 100644
index 00000000..e3e7ad1a
--- /dev/null
+++ b/.github/workflows/pull_request.yaml
@@ -0,0 +1,10 @@
+name: Pull Request
+on:
+  pull_request:
+
+jobs:
+  build_and_test_frontend:
+    uses: ./.github/workflows/frontend.yaml
+
+  build_and_test_backend:
+    uses: ./.github/workflows/backend.yaml
diff --git a/.github/workflows/release-artifacts.yaml b/.github/workflows/push_on_master.yaml
similarity index 81%
rename from .github/workflows/release-artifacts.yaml
rename to .github/workflows/push_on_master.yaml
index 8fcbc350..a611a13d 100644
--- a/.github/workflows/release-artifacts.yaml
+++ b/.github/workflows/push_on_master.yaml
@@ -1,4 +1,4 @@
-name: Build release artifacts
+name: Push or tag on master
 on:
   # we build on all pushes to master to (hopefully) get early warning
   # of things breaking (but only build one set of debs)
@@ -13,44 +13,18 @@ env:
     DOCKER_IMAGE_TAGS: latest ${{ github.sha }} ${{github.ref_name}}
 
 jobs:
-  build-and-publish-sdist:
-    name: Build and publish Python distributions to PyPI and TestPyPI
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@master
+  build_and_test_frontend:
+    uses: ./.github/workflows/frontend.yaml
 
-    - name: Set up Python 3.9
-      uses: actions/setup-python@v1
-      with:
-        python-version: 3.9
-
-    - name: Install pypa/flit
-      run: pip install flit
-
-    - name: Build a binary wheel and a source tarball
-      run: flit build
-
-    - uses: actions/upload-artifact@v2
-      with:
-        name: python-dist
-        path: dist/*
-
-          #- name: Publish distribution 📦 to Test PyPI
-          #  if: startsWith(github.ref, 'refs/tags')
-          #  uses: pypa/gh-action-pypi-publish@master
-          #  with:
-          #    password: ${{ secrets.TEST_PYPI_API_TOKEN }}
-          #    repository_url: https://test.pypi.org/legacy/
-
-          #- name: Publish distribution 📦 to PyPI
-          #  if: startsWith(github.ref, 'refs/tags')
-          #  uses: pypa/gh-action-pypi-publish@master
-          #  with:
-          #    password: ${{ secrets.PYPI_API_TOKEN }}
+  build_and_test_backend:
+    uses: ./.github/workflows/backend.yaml
 
   get-distros:
     name: "Calculate list of debian distros and docker image tags"
     runs-on: ubuntu-latest
+    needs:
+      - frontend
+      - backend
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
@@ -69,11 +43,12 @@ jobs:
     outputs:
       distros: ${{ steps.set-distros.outputs.distros }}
       tags: ${{ steps.set-distros.outputs.tags }}
-  
+
   build-and-publish-docker:
     name: Build and publish ready made docker containers
     runs-on: ubuntu-latest
-    needs: get-distros
+    needs:
+    - get-distros
     steps:
     - uses: actions/checkout@master
 
@@ -95,7 +70,7 @@ jobs:
         registry: quay.io/abrechnung
         username: ${{ secrets.DOCKERHUB_REGISTRY_USER }}
         password: ${{ secrets.DOCKERHUB_REGISTRY_PASSWORD }}
-    
+
     - name: Build Frontend Image
       id: build-frontend-image
       uses: redhat-actions/buildah-build@v2
@@ -117,7 +92,8 @@ jobs:
 
   # now build the packages with an abrechnung build.
   build-debs:
-    needs: get-distros
+    needs:
+    - get-distros
     name: "Build .deb packages"
     runs-on: ubuntu-latest
     strategy:
@@ -182,23 +158,22 @@ jobs:
     name: "Attach assets to release"
     if: ${{ !failure() && !cancelled() && startsWith(github.ref, 'refs/tags/') }}
     needs:
+      - frontend
+      - backend
       - build-debs
       - build-and-publish-sdist
     runs-on: ubuntu-latest
     steps:
       - name: Download all workflow run artifacts
         uses: actions/download-artifact@v2
-      - name: Build a tarball for the debs
-        run: tar -cvJf debs.tar.xz debs
       - name: Attach to release
         uses: softprops/action-gh-release@a929a66f232c1b11af63782948aa2210f981808a  # PR#109
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           files: |
-            python-dist/*
             debs/*.deb
-            debs.tar.xz
+            frontend/apps/mobile/android/app/build/outputs/apk/debug/app-debug.apk
           # if it's not already published, keep the release as a draft.
           draft: true
           # mark it as a prerelease if the tag contains 'rc'.