Publish prebuilt musl binary on v* tags

.github/workflows/release.yml

@@ -0,0 +1,37 @@
+name: release
+
+on:
+  push:
+    tags: ['v*']
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v6
+
+      - name: Install Rust toolchain with musl target
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: '1.88'
+          targets: x86_64-unknown-linux-musl
+
+      - name: Install musl tools
+        run: sudo apt-get update && sudo apt-get install -y musl-tools
+
+      - name: Build release binary
+        run: cargo build --release --locked --target x86_64-unknown-linux-musl
+
+      - name: Package binary
+        run: |
+          tar -czf subway-${{ github.ref_name }}-x86_64-unknown-linux-musl.tar.gz \
+            -C target/x86_64-unknown-linux-musl/release subway
+
+      - name: Publish GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: subway-*.tar.gz
+          generate_release_notes: true