{
  pov,
  config,
  lib,
  ...
}:

let
  inherit (lib) types;
  cfg = lib.getAttrFromPath pov config;

in
{

  option = {
    type = types.nullOr (
      lib.types.enum [
        "uefi"
        "legacy"
      ]
    );
    default = null;
  };

  config = lib.mkIf cfg.enable (
    lib.mkMerge [
      (lib.mkIf (cfg.type == "legacy") {
        boot.loader.grub = {
          enable = true;
          inherit (cfg) configurationLimit;
        };
      })
      (lib.mkIf (cfg.type == "uefi") {
        boot.loader = {
          grub.enable = false;
          efi = {
            canTouchEfiVariables = true;
            efiSysMountPoint = "/boot";
          };
        };
      })
    ]
  );

}