diff --git a/.gitea/workflows/push.yaml b/.gitea/workflows/push.yaml
index 3c920b0..4438e12 100644
--- a/.gitea/workflows/push.yaml
+++ b/.gitea/workflows/push.yaml
@@ -77,12 +77,10 @@ jobs:
   nix-build:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-      - name: Set up Nix
-        uses: cachix/install-nix-action@v27
+      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
       - name: Build project with Nix
-        run: nix build .#default --experimental-features 'nix-command flakes'
+        run: nix build --experimental-features 'nix-command flakes' git+$GITHUB_SERVER_URL/$GITHUB_REPOSITORY.git?ref=$GITHUB_REF_NAME#default
 
   env:
     runs-on: ubuntu-latest