diff --git a/.gitea/workflows/checks.yaml b/.gitea/workflows/checks.yaml
index b30161a..15da538 100644
--- a/.gitea/workflows/checks.yaml
+++ b/.gitea/workflows/checks.yaml
@@ -1,12 +1,11 @@
-name: checks
+name: "Check"
 on:
   pull_request:
   push:
-    branches:
-      - master
 jobs:
-  checks-impure:
-    runs-on: nixos
+  tests:
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - run: nix flake check
+    - uses: actions/checkout@v4
+    - uses: cachix/install-nix-action@v27
+    - run: nix-build