diff --git a/.github/workflows/build-ci.yml b/.github/workflows/build-ci.yml
index 769842cf..0370b33e 100644
--- a/.github/workflows/build-ci.yml
+++ b/.github/workflows/build-ci.yml
@@ -1,9 +1,46 @@
-name: GitHub Actions Demo
-run-name: ${{ github.actor }} is testing out GitHub Actions 🚀
+name: Build SocNetV CI
+run-name: ${{ github.actor }} testing latest SocNetV build with GitHub Actions 🚀
 on: [push]
 jobs:
   Explore-GitHub-Actions:
-    runs-on: ubuntu-latest
+    # runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-2019]
+        # Linux:   https://download.qt.io/online/qtsdkrepository/linux_x64/desktop/
+        # macOS:   https://download.qt.io/online/qtsdkrepository/mac_x64/desktop/
+        # Windows: https://download.qt.io/online/qtsdkrepository/windows_x86/desktop/
+        qt-version: [ '6.5.3', '6.6.3']
+        experimental: [false]
+        exclude:
+          # some reason
+          - os: ubuntu-latest
+            qt-version: '6.5.3'
+          # some reason
+          - os: windows-2019
+            qt-version: '6.5.3'
+            experimental: false
+          # Qt6 builds of macOS are currently breaking because of the workaround for https://bugreports.qt.io/browse/QTBUG-117225
+          # See https://github.com/pbek/QOwnNotes/issues/3018
+          - os: macos-latest
+            qt-version: '6.5.3'
+            experimental: false
+        include:
+          - os: ubuntu-latest
+            qt-version: '6.6.3'
+            experimental: true
+          - os: windows-2019
+            qt-version: '6.6.3'
+            experimental: true
+          - os: macos-latest
+            qt-version: '6.6.3'
+            experimental: true
+          # Snapcraft
+          - os: ubuntu-22.04
+            qt-version: '6.5.3'
+            experimental: false
     steps:
       - run: echo "🎉 The job was automatically triggered by a ${{ github.event_name }} event."
       - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by GitHub!"
@@ -15,5 +52,64 @@ jobs:
       - name: List files in the repository
         run: |
           ls ${{ github.workspace }}
-      - run: echo "🍏 This job's status is ${{ job.status }}."
 
+
+        #
+        # Install Qt
+        #
+
+      - if: contains( matrix.os, 'windows') && startsWith( matrix.qt-version, '6.' ) && matrix.qt-version != '6.2.4'
+        name: Install Qt 6 on Windows
+        uses: jurplel/install-qt-action@v4
+        with:
+          aqtversion: '==2.1.*'
+          version: ${{ matrix.qt-version }}
+          arch: win64_mingw
+          modules: qtwebsockets core5compat xml network widgets printsupport charts svg
+          cache: true
+      - if: false == contains( matrix.os, 'windows') && startsWith( matrix.qt-version, '6.' )
+        name: Install Qt 6 on Linux/macOS
+        uses: jurplel/install-qt-action@v4
+        with:
+          aqtversion: '==2.0.0'
+          version: ${{ matrix.qt-version }}
+          modules: qtwebsockets core5compat xml network widgets printsupport charts svg
+          cache: true
+
+
+
+        #
+        # Build SocNetV
+        #
+     - if: contains( matrix.os, 'ubuntu-latest')
+       name: Do Linux tests
+       run: |
+         echo "openssl version:"
+         echo `openssl version`
+         echo "Check output of 'which qmake6':"
+         which qmake6
+         echo "Check qmake6 -v:"
+         qmake6 -v
+       run: |
+         qmake6 CONFIG+=debug && make -s -j 8
+         echo "Building finished! "
+         echo "Files in current directory: "
+         find .
+    # qmake workaround: https://bugreports.qt.io/browse/QTBUG-117225?focusedId=754625&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-754625
+    # See https://github.com/pbek/QOwnNotes/issues/3018
+     - if: contains( matrix.os, 'macos')
+       name: Do macOS tests
+       run: |
+        qmake CONFIG+=debug socnetv.pro
+        mingw32-make
+
+      - if: contains( matrix.os, 'windows') && startsWith( matrix.qt-version, '6.' ) && matrix.qt-version != '6.2.4'
+        name: Do Qt 6.3+ Windows tests
+        run: |
+          qmake CONFIG+=debug socnetv.pro
+          mingw32-make
+          make
+          dir
+#          windeployqt --debug tests.exe
+
+   - run: echo "🍏 This job's status is ${{ job.status }}."