{ lib, pkgs, ... }:

{
  config = lib.mkIf (pkgs.system == "x86_64-linux") {
    boot.initrd.availableKernelModules = [
      "xhci_pci" "ahci" "sd_mod" "sdhci_pci"  # nixos-generate-config defaults
      "usb_storage"   # rpi needed this to boot from usb storage, i think.
      "nvme"  # to boot from nvme devices
      # efi_pstore evivars
    ];

    hardware.cpu.amd.updateMicrocode = true;    # desktop
    hardware.cpu.intel.updateMicrocode = true;  # laptop
  };
}