Add cuda file and fix on other configurations

modules/system/options/nixos/cuda.nix

@@ -0,0 +1,15 @@
+{ lib, config, ... }:
+with lib;
+let
+  cfg = config.os.virtualisation.cuda;
+in
+{
+  options.os.virtualisation.cuda = {
+    enable = mkEnableOption "System CUDA service";
+  };
+  config = mkIf cfg.enable {
+
+    hardware.nvidia-container-toolkit.enable = true;
+
+  };
+}