runs nixfmt

.github/workflows/nixfmt.yml

@@ -0,0 +1,29 @@
+name: Nix Format Check
+
+on:
+  pull_request:
+  push:
+    branches: [ main ]
+
+jobs:
+  check-format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Install Nix
+        uses: cachix/install-nix-action@v25
+        
+      - name: Install nixfmt
+        run: nix-env -i nixfmt
+        
+      - name: Check Nix formatting
+        run: |
+          find . -name "*.nix" -type f -exec nixfmt {} \;
+          if git diff --quiet; then
+            echo "All Nix files are properly formatted"
+          else
+            echo "Error: Some Nix files are not properly formatted"
+            git diff
+            exit 1
+          fi