{ lib }:
{
  checkMe = { name ? "", ... }@me:
    assert name != "";
    assert (builtins.pathExists ./machines/${name}.nix)
      && (builtins.pathExists ./hardware/${name}.nix);
    me;

  titleCase = str: with lib.strings; let
    firstCharUpper = s: concatStrings [(toUpper (substring 0 1 s)) (substring 1 (stringLength s) s)];
  in
    concatStringsSep " " (map firstCharUpper (splitString " " str));
    
}