diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
new file mode 100644
index 0000000..2a518d7
--- /dev/null
+++ b/.github/workflows/build.yaml
@@ -0,0 +1,24 @@
+---
+name: "build"
+on: pull_request
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        system:
+          - x86_64-linux
+          - aarch64-darwin
+    runs-on: >-
+      ${{ (matrix.system == 'x86_64-linux' && 'ubuntu-latest')
+      || (matrix.system == 'aarch64-darwin' && 'macos-latest') }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: install Nix
+        uses: cachix/install-nix-action@v31
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+          enable_kvm: true
+          extra_nix_config: |
+            sandbox = false
+      - run: nix build