configuration.nix/hosts/layne/hardware/default.nix

{ lib, pkgs, ... }: {
  imports = [ ./filesystem.nix ];

  hardware = {
    cpu.intel.updateMicrocode = lib.mkDefault true;
    enableRedistributableFirmware = true;
    graphics = {
      enable = true;
      extraPackages = with pkgs; [ intel-media-driver vpl-gpu-rt libvdpau-va-gl ];
    };
  };

  boot = {
    consoleLogLevel = 4;
    initrd = {
      availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usbhid" "uas" "sd_mod" ];
      kernelModules = [ "i915" ];
      systemd.enable = true;
    };
    kernelModules = [ "kvm-intel" ];
    kernelPackages = lib.mkDefault pkgs.linuxPackages_latest;
    kernelParams = [ "i915.enable_fbc=1" "i915.enable_psr=2" ];
    kernel.sysctl = {
      "vm.swappiness" = 10;
      "vm.dirty_ratio" = 3;
    };
    loader = {
      efi.canTouchEfiVariables = true;
      systemd-boot = {
        enable = true;
        configurationLimit = 15;
      };
    };
  };
  powerManagement.cpuFreqGovernor = lib.mkDefault "performance";
}