{ config, pkgs, lib, ... }:
{
  # Boot Options
  boot.loader.grub.enable = lib.mkForce false;
  boot.loader.generic-extlinux-compatible.enable = lib.mkForce true;

  boot.loader.systemd-boot.enable = lib.mkForce false;
  boot.loader.efi.canTouchEfiVariables = lib.mkForce false;


  # tty Console
  boot.kernelParams = [
    "console=ttyS1,115200n8"
  ];

  # Bluetooth
  hardware.bluetooth = {
    enable = true;
    powerOnBoot = true;
    settings = {
      General = {
        Experimental = true;
        FastConnectable = true;
      };
      Policy = {
        AutoEnable = true;
      };
    };
  };

  #systemd.services.btattach = {
  #  before = [ "bluetooth.service" ];
  #  after = [ "dev-ttyAMA0.device" ];
  #  wantedBy = [ "multi-user.target" ];
  #  serviceConfig = {
  #    ExecStart = "${pkgs.bluez}/bin/btattach -B /dev/ttyAMA0 -P bcm -S 3000000";
  #  };
  #};

}