move grub and nvidia modules to hardware

modules/nix/hardware/grub.nix

@@ -0,0 +1,22 @@
+{ config, lib, pkgs, ... }:
+
+  with lib;
+
+{
+  options.smayzy.grub-on-lap.enable = mkOption {
+    type = types.bool;
+    default = false;
+    description = "make grub works on this piece of shit laptop that can't boot normally";
+  };
+ 
+ config = {
+    boot.loader.systemd-boot.enable = false;
+    boot.loader.grub.enable = true;
+    boot.loader.grub.efiSupport = true;
+    boot.loader.grub.device = "nodev";
+
+    boot.loader.grub.efiInstallAsRemovable = mkIf config.smayzy.grub-on-lap.enable true;
+    boot.loader.efi.canTouchEfiVariables = mkIf (!config.smayzy.grub-on-lap.enable) true;
+  };
+
+} 

modules/nix/hardware/nvidia.nix

@@ -0,0 +1,21 @@
+{ config, lib, pkgs, ... }:
+let
+  inherit (lib) mkIf mkOption types;
+in
+{
+  options.smayzy.nvidia.enable = mkOption {
+    type = types.bool;
+    default = false;
+    description = "set to true if you want to use a nvidia GC";
+  };
+
+  config = mkIf config.smayzy.nvidia.enable {
+    services.xserver.videoDrivers = [ "nvidia" ];
+    hardware.nvidia = {
+      modesetting.enable = true;
+      open = true;
+      nvidiaSettings = true;
+      package = config.boot.kernelPackages.nvidiaPackages.stable;
+    };
+  };
+}