nix-config/nvidia.nix

{ ... }:

{
  services.xserver.videoDrivers = [ "nvidia" ];

  hardware = {
    nvidia = {
      modesetting.enable = true;
      powerManagement.enable = true;
      powerManagement.finegrained = false;
      open = false;
      nvidiaSettings = true;
    };
    graphics = {
      enable = true;
      enable32Bit = true;
    };
  };

  environment.sessionVariables = {
    LIBVA_DRIVER_NAME          = "nvidia";
    __GLX_VENDOR_LIBRARY_NAME  = "nvidia";
    NVD_BACKEND                = "direct";
  };
}