nixos-conf/shared/hardware/nvidia.nix

{ pkgs, ... }:
{
  hardware = {
    nvidia = {
      open = true; # Set to false to use the proprietary kernel module
      forceFullCompositionPipeline = true;
    };

    graphics = {
      enable = true;
      extraPackages = with pkgs; [ nvidia-vaapi-driver ];
    };
  };

  services.xserver.videoDrivers = [ "nvidia" ];
  boot.kernelPackages = pkgs.linuxPackages_xanmod_latest;

  nixpkgs.config.cudaSupport = true;
  nix.settings = {
    substituters = [ "https://nix-community.cachix.org" ];
    trusted-public-keys = [ "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=" ];
  };
}