modules/hardware/gpu.nix


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{
    config,
    options,
    lib,
    pkgs,
    ...
}: let
    gpuConfig = config.modules.hardware.gpu;
    device = config.modules.device;
in {
    options.modules.hardware.gpu = {
        enable = lib.mkOption {
            type = lib.types.bool;
            default = true;
        };
    };

    config = lib.mkIf (gpuConfig.enable) (lib.mkMerge [
        {
            hardware.graphics = {
                enable = true;
            };
        }
        (lib.mkIf (device.gpu == "intel") {
            boot.initrd.kernelModules = ["i915"];
            services.xserver.videoDrivers = ["modesetting"];

            hardware.opengl.extraPackages = [
                pkgs.intel-compute-runtime
                pkgs.intel-media-driver
                pkgs.vaapiIntel
                pkgs.vaapiVdpau
                pkgs.libvdpau-va-gl
            ];

            environment.variables.VDPAU_DRIVER = "va_gl";
        })
        (lib.mkIf (device.gpu == "nvidia") {
          services.xserver.videoDrivers = ["nvidia"];
          boot.initrd.kernelModules = [ "nvidia" ];

          hardware.nvidia = {
            modesetting.enable = true;
            powerManagement.enable = false;
            powerManagement.finegrained = false;
            open = true;
            nvidiaSettings = true;
            package = config.boot.kernelPackages.nvidiaPackages.latest;
          };

          environment.systemPackages = with pkgs; [
            nvtopPackages.nvidia
          ];
        })
    ]);
}