Build fonts with fntbld-oci

.github/workflows/build.yml

@@ -0,0 +1,44 @@
+name: Build fonts
+
+on:
+  push:
+    branches: [main]
+    tags: ["*"]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/nicoverbruggen/fntbld-oci:latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Build fonts
+        run: python3 build.py
+
+      - name: Zip TTFs
+        run: cd out/ttf && zip -j ../../Readerly.zip *.ttf
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: Readerly
+          path: Readerly.zip
+
+  release:
+    needs: build
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: Readerly
+
+      - name: Create release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: Readerly.zip