Updated Workflow to use Lix

.github/workflows/build.yml

@@ -4,12 +4,22 @@ jobs:
   build-HyperC:
     runs-on: docker
     container:
-      image: niteo/nixpkgs-nixos-unstable:9e70e9f732fbb15872cb4ea11bd43c14328a0b69
-    name: Build NixOS Iso
+      image: ghcr.io/lix-project/lix:latest
+    name: "Check NixOS Configuration"
     steps:
-      - name: Update Nix Store
-        run: | 
-          nix-channel --update
-      - name: Get System Info
-        run: | 
-          nix-shell -p fastfetch --run fastfetch
+      - name: "Use Node.js (Workarround)"
+        uses: actions/setup-node@v4
+        with:
+          node-version: '21.x'
+
+      - name: "Checkout"
+        uses: actions/checkout@v3
+
+      - name: "Check evaluation"
+        run: nix flake check --no-build --all-systems
+
+      - name: "Do linting"
+        run: nix run nixpkgs#statix -- check .
+
+      - name: "Check formatting"
+        run: nix fmt -- --fail-on-change