{ lib, ... }:
let 
  inherit (lib) mkOption types;
in {
  perSystem.firmware = mkOption {
    type = types.submodule [
      # ./f62
      # ./f77
      ./nk65b
      # ./nk87
      # ./nk_classic_tkl
      # ./steezy60
      # ./xd60
      # ./xd84pro
      # ./xd87
    ];
  };
}