{
  cfg,
  src,
  lib,
  ...
}:
let
  maker = import ./make-cfg.nix {
    inherit lib;
    keys-h-file = builtins.readFile "${src}/include/keys.h";
  };
in
builtins.toFile "lidm.conf" (
  if builtins.isString cfg then
    builtins.readFile "${src}/themes/${cfg}.ini"
  else if builtins.isAttrs cfg then
    maker.make cfg
  else
    builtins.throw "invalid cfg type, expected str or attrs"
)