test the patching in ci

.github/workflows/test.yml

@@ -0,0 +1,16 @@
+on: [push, pull_request]
+
+name: Test patching
+
+jobs:
+  checks:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v27
+      - uses: icewind1991/attic-action@v1
+        with:
+          name: ci
+          instance: https://cache.icewind.me
+          authToken: "${{ secrets.ATTIC_TOKEN }}"
+      - run: nix build .#nvidia-patched

.gitignore

@@ -1,3 +1,3 @@
-/result
+/result*
 /.direnv
 nvidia-patch

flake.nix

@@ -15,10 +15,12 @@
       ];
       pkgs = (import nixpkgs) {
         inherit system overlays;
+        config.allowUnfreePredicate = pkg: true;
       };
     in rec {
       packages = rec {
         inherit (pkgs) nvidia-patch-extractor nvidia-patch nvidia-patch-list;
+        nvidia-patched = nvidia-patch.patch-nvenc (nvidia-patch.patch-fbc pkgs.linuxPackages.nvidiaPackages.stable);
       };
       devShell = pkgs.mkShell {
         nativeBuildInputs = with pkgs; [jq patch];