(wip) Working on CI. Merged workflows so we can use a matrix.

.github/workflows/main.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.11']
-        os: ['ubuntu-22.04']
+        os: ['ubuntu-22.04', 'macos-12', 'windows-2022']
 
     runs-on: ${{ matrix.os }}
 
@@ -36,3 +36,29 @@ jobs:
       - name: Check Python Version Compatibility
         shell: bash
         run: vermin --no-tips --no-parse-comments --target=3.8- --violations *.py
+
+      # Create a release for this OS (but only on a single version of Python).
+      # See: https://github.com/Nuitka/Nuitka?tab=readme-ov-file#use-case-7--building-with-github-workflows
+
+      - name: Build ${{ runner.os }} Release Executable with Nuitka
+        if: matrix.python-version == '3.11'
+        uses: Nuitka/Nuitka-Action@main
+        with:
+          nuitka-version: main
+          script-name: main.py
+          standalone: true
+          onefile: true
+          include-data-dir: |
+            ./static=static
+          include-data-files: |
+            ./pyproject.toml=./
+
+      - name: Upload Artifacts
+        if: matrix.python-version == '3.11'
+        uses: actions/upload-artifact@v3
+        with:
+          name: ${{ runner.os }} Build
+          path: |
+              build/*.exe
+              build/*.bin
+              build/*.app/**/*