{...}:

{
  boot.loader = {
    efi = {
	  canTouchEfiVariables = true;
	  efiSysMountPoint = "/boot/efi";
	};
	grub = {
	  efiSupport = true;
	  #efiInstallAsRemovable = true; # in case canTouchEfiVariables doesn't work on your system
	  device = "nodev";
	};
  };
}