Create a basic CI

.github/workflows/ci.yml

@@ -0,0 +1,24 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  flatpak:
+    name: "Flatpak CI"
+    runs-on: ubuntu-latest
+    strategy:
+        matrix:
+            file: [com.blackmagic.Resolve, com.blackmagic.ResolveStudio]
+    container:
+      image: bilelmoussaoui/flatpak-github-actions:freedesktop-22.08
+      options: --privileged
+    steps:
+    - uses: actions/checkout@v3
+
+    - uses: flatpak/flatpak-github-actions/flatpak-builder@v6.1
+      with:
+        bundle: ${{ matrix.file }}
+        manifest-path: ${{ matrix.file }}.yaml
+        cache-key: flatpak-builder-${{ matrix.file }}-${{ github.sha }}