{
  config,
  pkgs,
  ...
}: let
  my-rules = pkgs.writeTextFile {
    name = "70-heliox.rules";
    text = ''
    SUBSYSTEM=="tty", GROUP="plugdev". MODE="0660"
    SUBSYSTEMS=="usb", ATTRS{idProduct}=="7523", ATTRS{idVendor}=="1a86", SYMLINK+="heliox"
    '';
    destination = "/etc/udev/rules.d/70-heliox.rules";
  };
in {
   services.udev.packages = [ my-rules ];
}