feat: also create nvidia role, empty for now

roles/nvidia.nix

@@ -0,0 +1,31 @@
+{ lib, pkgs, config, ... }:
+with lib;
+let
+  cfg = config.liv.nvidia;
+in {
+  options.liv.nvidia = {
+    enable = mkEnableOption "Enable NVIDIA drivers";
+  };
+
+  config = mkIf cfg.enable {
+    hardware = {
+      graphics = {
+        enable = true;
+      };
+      enableRedistributableFirmware = true;
+      opengl = {
+        extraPackages = with pkgs; [
+          # amdvlk
+        ];
+        # For 32 bit applications as well
+        extraPackages32 = with pkgs; [
+          # driversi686Linux.amdvlk
+        ];
+      };
+    };
+
+    environment.systemPackages = with pkgs; [
+      # amdvlk
+    ];
+  };
+}