{
  config,
  lib,
  pkgs,
  ...
}:
let
  cfg = config.custom.kernel.vfio;
in
{
  options.custom.kernel.vfio = {
    enable = lib.mkOption {
      type = lib.types.bool;
      default = true;
    };
  };
  config = lib.mkIf cfg.enable {
    boot = {
      extraModulePackages = [ config.boot.kernelPackages.kvmfr ];
      extraModprobeConfig = ''
        options kvmfr static_size_mb=128
      '';
      kernelParams = [
        "vfio-pci.ids=10de:2204,10de:1aef"
      ];
      kernelModules = [ "kvmfr" ];

      initrd.kernelModules = [
        "kvmfr"
        "kvm-amd"

        "vfio_pci"
        "vfio_iommu_type1"
        "vfio"
      ];
    };
    services = {
      udev.extraRules = ''
        SUBSYSTEM=="kvmfr", OWNER="master", GROUP="kvm", MODE="0660"
      '';
    };

    environment.systemPackages = [
      pkgs.looking-glass-client
    ];
  };
}