nixos/system/hardware.nix

{ config, pkgs, ... }:
{
  hardware = {
    opengl = {
      enable = true;
      driSupport = true;
      driSupport32Bit = true;
    };
    ckb-next.enable = true;
    nvidia = {
      modesetting.enable = true;
      powerManagement.enable = false;
      powerManagement.finegrained = false;
      open = false;
      nvidiaSettings = true;
      package = config.boot.kernelPackages.nvidiaPackages.stable;
    };
    pulseaudio.enable = false;
  };
}