1 files changed, 55 insertions, 0 deletions
diff --git a/.github/workflows/example.yaml b/.github/workflows/example.yaml
new file mode 100644
index 0000000..5c376c1
--- /dev/null
+++ b/.github/workflows/example.yaml
@@ -0,0 +1,55 @@
+name: Example
+
+on:
+  workflow_dispatch:
+
+jobs:
+  eval:
+    runs-on: ubuntu-latest
+
+    outputs:
+      matrix: ${{ steps.generate.outputs.matrix }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: install nix
+        uses: nixbuild/nix-quick-install-action@v26
+
+      - name: generate matrix
+        id: generate
+        run: |
+          set -Eeu
+          echo "matrix=$(nix eval --show-trace --json .#githubWorkflow.matrix)" >> "$GITHUB_OUTPUT"
+
+  build:
+    needs: eval
+
+    strategy:
+      matrix: ${{ fromJSON(needs.eval.outputs.matrix) }}
+
+    runs-on: ${{ matrix.os }}
+
+    name: build (${{matrix.attr}})
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: setup qemu
+        if: matrix.arch == 'aarch64'
+        run: |
+          sudo apt update -y
+          sudo apt install -y qemu-user-static
+
+      - name: install nix
+        if: matrix.arch != 'aarch64'
+        uses: nixbuild/nix-quick-install-action@v26
+
+      - name: install nix (with aarch64)
+        if: matrix.arch == 'aarch64'
+        uses: nixbuild/nix-quick-install-action@v26
+        with:
+          nix_conf: "extra-platforms = aarch64-linux arm-linux"
+
+      - name: build ${{ matrix.attr }}
+        run: nix build -L --fallback .#${{ matrix.attr }}