diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..56f6067
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,86 @@
+name: PyInstaller test builds
+
+on: [push]
+
+jobs:
+  build_ubuntu64_20:
+
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Python 3.10 x64
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+          architecture: 'x64'
+      - name: Update pip
+        run: python -m pip install --upgrade pip
+      - name: Update builds tools
+        run: python -m pip install --upgrade setuptools wheel
+      - name: Install dependencies
+        run: python -m pip install --upgrade PyQt6 certifi
+      - name: Install PyInstaller
+        run: python -m pip install --upgrade PyInstaller
+      - name: Run pyinst.py
+        run: python3 pyinst.py --no-prompts --onefile --no-upx --no-crt --no-clean --windowed
+      - name: Create archive (.tar.xz)
+        run: tar -cavf Pesterchum_linux64.tar.xz -C dist Pesterchum
+      - uses: actions/upload-artifact@v3
+        with:
+          name: Pesterchum_linux64.tar.xz
+          path: Pesterchum_linux64.tar.xz
+
+  build_win64_latest:
+
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Python 3.10 x64
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+          architecture: 'x64'
+      - name: Update pip
+        run: python -m pip install --upgrade pip
+      - name: Update builds tools
+        run: python -m pip install --upgrade setuptools wheel
+      - name: Install dependencies
+        run: python -m pip install --upgrade PyQt6 certifi
+      - name: Install PyInstaller
+        run: python -m pip install --upgrade PyInstaller
+      - name: Run PyInstaller
+        run: python3 pyinst.py --no-prompts --onefile --no-upx --crt --no-clean --windowed
+      - name: Create archive (.zip)
+        run: tar.exe -a -c -f Pesterchum_win64.zip -C dist Pesterchum
+      - uses: actions/upload-artifact@v3
+        with:
+          name: Pesterchum_win64.zip
+          path: Pesterchum_win64.zip
+          
+  build_macos64_11:
+
+    runs-on: macos-11
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Python 3.10 x64
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+          architecture: 'x64'
+      - name: Update pip
+        run: python -m pip install --upgrade pip
+      - name: Update builds tools
+        run: python -m pip install --upgrade setuptools wheel
+      - name: Install dependencies
+        run: python -m pip install --upgrade PyQt6 certifi
+      - name: Install PyInstaller
+        run: python -m pip install --upgrade PyInstaller
+      - name: Run pyinst.py
+        run: python3 pyinst.py --no-prompts --onefile --no-upx --no-crt --no-clean --windowed
+      - name: Create archive (.tar.xz)
+        run: tar -cavf Pesterchum_macOS64.tar.xz -C dist Pesterchum.app
+      - uses: actions/upload-artifact@v3
+        with:
+          name: Pesterchum_macOS64.tar.xz
+          path: Pesterchum_macOS64.tar.xz
+