diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index 3e98bcf..d02b1e6 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -6,4 +6,11 @@ jobs:
   amd-docker:
     runs-on: docker
     steps:
-        - run: sudo docker version
+      - name: Cache Nix store
+        uses: actions/cache@v3.0.8
+        id: nix-cache
+        with:
+          path: /tmp/cache-me
+          key: "test-cache"
+
+      - run: echo "FOO" > /tmp/cache-me