diff --git a/.github/workflows/build-and-cache.yml b/.github/workflows/build-and-cache.yml
new file mode 100644
index 0000000..7662410
--- /dev/null
+++ b/.github/workflows/build-and-cache.yml
@@ -0,0 +1,26 @@
+name: build and cache random stuff
+
+on:
+  workflow_dispatch:
+  push:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+
+      - uses: cachix/cachix-action@v15
+        with:
+          name: cything
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
+      
+      - name: Setup Attic cache
+        uses: ryanccn/attic-action@v0
+        with:
+          endpoint: ${{ vars.ATTIC_ENDPOINT }}
+          cache: ${{ vars.ATTIC_CACHE }}
+          token: ${{ secrets.ATTIC_TOKEN }}
+
+      - run: nix build github:nixos/nixpkgs/e12eb3ea24df94fe90bf1661d1f711fe6fe80202#vault-tasks