Add CI

.forgejo/workflows/build.yaml

@@ -0,0 +1,14 @@
+name: Build
+on: [push]
+jobs:
+  build:
+    runs-on: debian-12
+    steps:
+      - name: Install dependencies
+        run: apt-get update && apt-get install -y python3
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 100
+      - name: Build
+        run: ./x.py build --stage=1