Added actions

.gitea/workflows/nixos.yml

@@ -0,0 +1,29 @@
+name: NixOS Configuration Check
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  nixos-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Install Nix
+        uses: cachix/install-nix-action@v22
+
+      - name: Show Nix version
+        run: nix --version
+
+      - name: Run nix flake check
+        run: nix flake check
+
+      - name: Attempt to build configuration (optional)
+        run: |
+          nix build .#nixosConfigurations.desktop.config.system.build.toplevel
+          nix build .#nixosConfigurations.laptop.config.system.build.toplevel
+          nix build .#nixosConfigurations.vm.config.system.build.toplevel