diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..b202a11
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,21 @@
+name: Build
+
+on:
+  push:
+    branches: ['master']
+
+jobs:
+  build-x86_64-linux:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: cachix/install-nix-action@v20
+      with:
+        nix_path: nixpkgs=channel:nixpkgs-unstable
+    - uses: cachix/cachix-action@v12
+      with:
+        name: nifoc
+        authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+    - run: nix build '.#nixosConfigurations.attic.pkgs.attic-server'
+    - run: nix build '.#nixosConfigurations.attic.pkgs.attic-client'
+    - run: nix build '.#nixosConfigurations.attic.pkgs.pkgsCross.aarch64-multiplatform.attic-client'