{ lib, config, ... }:
with lib;
let
  cfg = config.n.host.hardware;
in {
  options.n.host.hardware = {
    cpu = mkOption { type = types.str; default = ""; };
  };
  config = mkMerge [
    (mkIf (cfg.cpu == "amd")
      {
        boot.kernelModules = [ "kvm-amd" ];
        hardware.cpu.amd.updateMicrocode = true;
      }
    )
    (mkIf (cfg.cpu == "intel")
      {
        hardware.cpu.intel.updateMicrocode = true;
      }
    )
    (mkIf (cfg.cpu == "virt")
      {
        boot.initrd.availableKernelModules = [
          "virtio_net"
          "virtio_pci"
          "virtio_mmio"
          "virtio_blk"
          "virtio_scsi"
          "9p"
          "9pnet_virtio"
        ];
        boot.initrd.kernelModules = [
          "virtio_balloon"
          "virtio_console"
          "virtio_rng"
          "virtio_gpu"
        ];
      }
    )
  ];  
}