{
  config,
  lib,
  pkgs,
  ...
}: {
  specialisation = {
    powersave.configuration = {
      hardware.nvidia.prime = {
        offload = {
          enable = lib.mkForce true;
          enableOffloadCmd = lib.mkForce true;
        };
        sync.enable = lib.mkForce false;
      };
    };
  };
  boot.kernelModules = ["nvidia_uvm"];
  hardware.graphics = {
    enable = true;
    extraPackages = with pkgs; [
      libvdpau-va-gl
    ];
  };
  services.xserver.videoDrivers = ["nvidia"];
  hardware.nvidia = {
    prime = {
      offload.enable = false;
      sync = {
        enable = true;
      };
      amdgpuBusId = "PCI:5:0:0";
      nvidiaBusId = "PCI:1:0:0";
    };
    forceFullCompositionPipeline = true;
    modesetting.enable = true;
    # open = true;
    nvidiaSettings = true;
    package = config.boot.kernelPackages.nvidiaPackages.beta;
  };
}