diff --git a/.github/actions/lint-error/action.yml b/.github/actions/lint-error/action.yml
index 95611788c..040aad6ce 100644
--- a/.github/actions/lint-error/action.yml
+++ b/.github/actions/lint-error/action.yml
@@ -2,10 +2,6 @@ name: "Lint error"
 description: "Checks for lint errors and posts a helpful comment"
 
 inputs:
-  comment-header:
-    description: "The header ID for the comment"
-    required: true
-
   format-command:
     description: "The command to run to fix lint errors"
     required: true
@@ -47,9 +43,40 @@ runs:
       if: steps.changes.outputs.diff
       uses: actions/upload-artifact@v4
       with:
-        name: ${{ steps.changes.outputs.file }}
+        name: ${{ inputs.format-tool }}-diff
         path: ${{ steps.changes.outputs.file }}
-        retention-days: 3
+        if-no-files-found: error
+
+    - name: Set summary
+      id: summary
+      if: steps.changes.outputs.diff
+      run: |
+        code_block="\`\`\`"
+
+        summary=$(cat<<EOF
+        ❌ \`${{ inputs.format-tool }}\`: It looks like your changes don't match our code style.
+
+        🛠️ Please either run \`${{ inputs.format-command }}\` or apply this patch with \`git apply\`:
+
+        [\`${{ steps.changes.outputs.file }}\`](${{ steps.upload.outputs.artifact-url }})
+        $code_block diff
+        ${{ steps.changes.outputs.diff }}
+        $code_block
+        EOF
+        )
+        echo "$summary" >> $GITHUB_STEP_SUMMARY
+
+        file="ci_summary.md"
+        echo "❌🛠️ \`${{ inputs.format-tool }}\`: Lint errors, fix available." >> $file
+        echo "file=$file" >> $GITHUB_OUTPUT
+      shell: bash
+
+    - name: Upload CI summary as artifact
+      if: steps.summary.outputs.file
+      uses: actions/upload-artifact@v4
+      with:
+        name: summary-${{ inputs.format-tool }}
+        path: ${{ steps.summary.outputs.file }}
         if-no-files-found: error
 
     - name: Fail if diff exists
diff --git a/.github/actions/run-tests-setup/action.yml b/.github/actions/run-tests-setup/action.yml
deleted file mode 100644
index 413f3d50a..000000000
--- a/.github/actions/run-tests-setup/action.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: "Run tests (setup)"
-description: "Sets up the PR comment for tests"
-
-runs:
-  using: "composite"
-
-  steps:
-    - name: Get workflow URL
-      id: workflow-url
-      run: |
-        repo_url="${{ github.server_url }}/${{ github.repository }}"
-        echo "url=$repo_url/actions/runs/${{ github.run_id }}" >> $GITHUB_OUTPUT
-      shell: bash
-
-    - name: Begin PR comment
-      uses: marocchino/sticky-pull-request-comment@v2
-      if: github.event.pull_request.head.repo.full_name == github.repository
-      with:
-        header: tests
-        recreate: true
-        message: |
-          ## Test results
-          See [workflow run](${{ steps.workflow-url.outputs.url }}) for test output.
-
-    # Neccesary since the first comment has an annoying comment.
-    - name: Append table header
-      uses: marocchino/sticky-pull-request-comment@v2
-      if: github.event.pull_request.head.repo.full_name == github.repository
-      with:
-        header: tests
-        append: true
-        message: |
-          | Job name | Unit tests | Integration tests |
-          | --- | --- | --- |
diff --git a/.github/actions/run-tests/action.yml b/.github/actions/run-tests/action.yml
index a749c52b1..60086df21 100644
--- a/.github/actions/run-tests/action.yml
+++ b/.github/actions/run-tests/action.yml
@@ -14,7 +14,13 @@ runs:
       id: unittests
       env:
         QT_QPA_PLATFORM: offscreen
-      run: ./build/bin/unittests
+      run: |
+        ./build/bin/unittests
+        result=$?
+
+        if [ $result -ne 0 ]; then
+          echo "Unit tests failed with code: $result" >> $GITHUB_STEP_SUMMARY
+        fi
       shell: bash
       continue-on-error: true
 
@@ -27,7 +33,7 @@ runs:
         result=$?
 
         if [ $result -ne 0 ]; then
-          echo "::warning ::Integration tests failed with code: $result"
+          echo "Integration tests failed with code: $result" >> $GITHUB_STEP_SUMMARY
         fi
       shell: bash
       continue-on-error: true
@@ -45,14 +51,25 @@ runs:
         echo "integtests=$integtests" >> $GITHUB_OUTPUT
       shell: bash
 
-    - name: Append to PR comment
-      uses: marocchino/sticky-pull-request-comment@v2
-      if: github.event.pull_request.head.repo.full_name == github.repository
+    - name: Summary row
+      id: row
+      run: |
+        file="row-${{ inputs.job }}.md"
+
+        row=""
+        row+="| ${{ inputs.job }} "
+        row+="| ${{ steps.results.outputs.unittests }} "
+        row+="| ${{ steps.results.outputs.integtests }} |"
+        echo "$row" > $file
+
+        echo "file=$file" > $GITHUB_OUTPUT
+      shell: bash
+
+    - name: Save summary row
+      uses: actions/upload-artifact@v4
       with:
-        header: tests
-        append: true
-        message: |
-          | ${{ inputs.job }} | ${{ steps.results.outputs.unittests }} | ${{ steps.results.outputs.integtests }} |
+        name: test-result-${{ inputs.job }}
+        path: ${{ steps.row.outputs.file }}
 
     - name: Check test outcome
       if: steps.unittests.outcome == 'failure'
diff --git a/.github/actions/test-summary/action.yml b/.github/actions/test-summary/action.yml
new file mode 100644
index 000000000..a84919382
--- /dev/null
+++ b/.github/actions/test-summary/action.yml
@@ -0,0 +1,67 @@
+name: "Test Summary"
+description: "Creates a markdown table from test results and uploads a summary file"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Download test result rows
+      uses: actions/download-artifact@v4
+      with:
+        pattern: test-result-*
+        merge-multiple: true
+        path: rows
+
+    - name: Build markdown table
+      id: markdown-table
+      run: |
+        # Builds a markdown table from the row artifacts.
+
+        header=$(cat <<EOF
+        # Test results
+        | Job name | Unit tests | Integration tests |
+        | --- | --- | --- |
+        EOF
+        )
+
+        rows=""
+        for file in rows/*; do
+          rows+=$(cat $file)
+          rows+=$'\n'
+        done
+
+        {
+          echo "markdown<<EOF"
+          echo "$header"
+          echo "$rows"
+          echo "EOF"
+        } >> $GITHUB_OUTPUT
+      shell: bash
+
+    - name: Set step summary
+      id: summary
+      run: |
+        # Sets the step summary and creates a CI summary file.
+
+        table="${{ steps.markdown-table.outputs.markdown }}"
+        if [ -z "$table" ]; then
+          echo "No test results found" > $GITHUB_STEP_SUMMARY
+          exit 1
+        else
+          echo "$table" > $GITHUB_STEP_SUMMARY
+        fi
+
+        count=$(echo -n "$table" | grep -o "❌" | wc -l || echo 0)
+        if [ $count -gt 0 ]; then
+          file="ci-summary.md"
+          echo "❌🔬 Tests failed: $count" > $file
+          echo "file=$file" >> $GITHUB_OUTPUT
+        fi
+      shell: bash
+
+    - name: Upload CI summary
+      if: steps.summary.outputs.file
+      uses: actions/upload-artifact@v4
+      with:
+        name: summary-tests
+        path: ${{ steps.summary.outputs.file }}
+        if-no-files-found: error
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 215e195f6..ea7c02ff7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,11 +25,21 @@ env:
   PACKAGE_BUILD: ${{ !github.event.pull_request.draft }}
   PACKAGE_UPLOAD: ${{ !github.event.pull_request.draft }}
 
-permissions:
-  pull-requests: write
-
 jobs:
-  setup:
+  # Quality gate to allow PR merge, used in the branch protection rules.
+  ci-passed:
+    runs-on: ubuntu-latest
+    needs: [lint-cmake, lint-clang, windows, macos, linux, unix]
+
+    steps:
+      - run: echo "CI passed" > $GITHUB_STEP_SUMMARY
+
+  # Summary of test results, combined from test result artifacts.
+  # Runs even if the tests fail to provide a summary of the failures.
+  test-results:
+    needs: [windows, macos, linux]
+    if: always()
+
     runs-on: ubuntu-latest
     timeout-minutes: 5
 
@@ -37,11 +47,32 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Test setup
-        uses: ./.github/actions/run-tests-setup
+      - name: Test summary
+        uses: ./.github/actions/test-summary
+
+  lint-cmake:
+    if: ${{ github.event_name == 'pull_request' }}
+    uses: ./.github/workflows/lint-cmake.yml
+
+  lint-clang:
+    if: ${{ github.event_name == 'pull_request' }}
+    uses: ./.github/workflows/lint-clang.yml
+
+  analyse-valgrind:
+    if: ${{ github.event_name == 'pull_request' }}
+    uses: ./.github/workflows/valgrind-analysis.yml
+
+  analyse-codeql:
+    if: ${{ github.event_name == 'pull_request' }}
+    uses: ./.github/workflows/codeql-analysis.yml
+
+  analyse-sonarcloud:
+    if: ${{ github.event_name == 'pull_request' }}
+    uses: ./.github/workflows/sonarcloud-analysis.yml
+    secrets:
+      SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
 
   windows:
-    needs: setup
     name: ${{ matrix.target.name }}
     runs-on: ${{ matrix.target.runs-on }}
     container: ${{ matrix.target.container }}
@@ -129,7 +160,6 @@ jobs:
           package-version: ${{ env.DESKFLOW_VERSION }}
 
   macos:
-    needs: setup
     name: ${{ matrix.target.name }}
     runs-on: ${{ matrix.target.os }}
     timeout-minutes: ${{ matrix.target.timeout }}
@@ -230,7 +260,7 @@ jobs:
           jq-filter: .distro |= map(select(.["runs-on"] | contains("arm64") | not))
 
   linux:
-    needs: [setup, linux-matrix]
+    needs: linux-matrix
     name: linux-${{ matrix.distro.name }}
     runs-on: ${{ matrix.distro.runs-on }}
     container: ${{ matrix.distro.container }}
@@ -294,7 +324,6 @@ jobs:
 
   # Technically, "unix" is a misnomer, but we use it here to mean "Unix-like BSD-derived".
   unix:
-    needs: setup
     name: unix-${{ matrix.distro.name }}
     runs-on: ${{ vars.CI_UNIX_RUNNER || 'ubuntu-24.04' }}
     timeout-minutes: 20
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 58b788004..62ec2b1e1 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -2,12 +2,7 @@ name: "CodeQL Analysis"
 
 on:
   workflow_dispatch:
-  pull_request:
-    types:
-      - opened
-      - reopened
-      - synchronize
-      - ready_for_review
+  workflow_call:
   push:
     branches: [master]
 
diff --git a/.github/workflows/lint-clang.yml b/.github/workflows/lint-clang.yml
index 92a8deea6..d8abad286 100644
--- a/.github/workflows/lint-clang.yml
+++ b/.github/workflows/lint-clang.yml
@@ -2,15 +2,7 @@ name: "Lint Clang"
 
 on:
   workflow_dispatch:
-  pull_request:
-    types:
-      - opened
-      - reopened
-      - synchronize
-      - ready_for_review
-
-permissions:
-  pull-requests: write
+  workflow_call:
 
 jobs:
   lint-clang:
@@ -37,4 +29,3 @@ jobs:
         with:
           format-command: ./scripts/lint_clang.py -f
           format-tool: "clang-format"
-          comment-header: "lint-clang"
diff --git a/.github/workflows/lint-cmake.yml b/.github/workflows/lint-cmake.yml
index 165638934..5a4679004 100644
--- a/.github/workflows/lint-cmake.yml
+++ b/.github/workflows/lint-cmake.yml
@@ -2,15 +2,7 @@ name: "Lint CMake"
 
 on:
   workflow_dispatch:
-  pull_request:
-    types:
-      - opened
-      - reopened
-      - synchronize
-      - ready_for_review
-
-permissions:
-  pull-requests: write
+  workflow_call:
 
 jobs:
   lint-cmake:
@@ -37,4 +29,3 @@ jobs:
         with:
           format-command: ./scripts/lint_cmake.py -f
           format-tool: "cmake-format"
-          comment-header: "lint-cmake"
diff --git a/.github/workflows/sonarcloud-analysis.yml b/.github/workflows/sonarcloud-analysis.yml
index f700f8241..404f9d87d 100644
--- a/.github/workflows/sonarcloud-analysis.yml
+++ b/.github/workflows/sonarcloud-analysis.yml
@@ -2,12 +2,10 @@ name: "SonarCloud Analysis"
 
 on:
   workflow_dispatch:
-  pull_request:
-    types:
-      - opened
-      - reopened
-      - synchronize
-      - ready_for_review
+  workflow_call:
+    secrets:
+      SONAR_TOKEN:
+        required: true
   push:
     branches: [master]
 
@@ -78,7 +76,6 @@ jobs:
           QT_QPA_PLATFORM: offscreen
         run: cmake --build build --target coverage-unittests
 
-      # Retry integtests coverae as gcovr intermittently fails to parse .gcda files.
       - name: Integration tests coverage
         env:
           QT_QPA_PLATFORM: offscreen
diff --git a/.github/workflows/valgrind-analysis.yml b/.github/workflows/valgrind-analysis.yml
index 61089643e..cfa74cb20 100644
--- a/.github/workflows/valgrind-analysis.yml
+++ b/.github/workflows/valgrind-analysis.yml
@@ -2,15 +2,7 @@ name: "Valgrind Analysis"
 
 on:
   workflow_dispatch:
-  pull_request:
-    types:
-      - opened
-      - reopened
-      - synchronize
-      - ready_for_review
-
-permissions:
-  pull-requests: write
+  workflow_call:
 
 jobs:
   valgrind-analysis:
@@ -58,29 +50,22 @@ jobs:
         with:
           executable: ./build/bin/integtests
 
-      - name: Get workflow URL
-        id: workflow-url
+      - name: Set job summary
         run: |
-          repo_url="${{ github.server_url }}/${{ github.repository }}"
-          echo "url=$repo_url/actions/runs/${{ github.run_id }}" >> $GITHUB_OUTPUT
-        shell: bash
+          backticks='```'
+          message=$(cat <<EOF
+          ## Valgrind summary
 
-      - name: Append to PR comment
-        uses: marocchino/sticky-pull-request-comment@v2
-        if: github.event.pull_request.head.repo.full_name == github.repository
-        with:
-          recreate: true
-          header: valgrind
-          message: |
-            ## Valgrind summary
-            See [workflow run](${{ steps.workflow-url.outputs.url }}) for full `valgrind` output.
+          ### Unit tests
+          $backticks
+          ${{ steps.unittests.outputs.summary }}
+          $backticks
 
-            ### Unit tests
-            ```
-            ${{ steps.unittests.outputs.summary }}
-            ```
+          ### Integration tests
+          $backticks
+          ${{ steps.integtests.outputs.summary }}
+          $backticks
+          EOF
+          )
 
-            ### Integration tests
-            ```
-            ${{ steps.integtests.outputs.summary }}
-            ```
+          echo "$message" >> $GITHUB_STEP_SUMMARY