{
  config,
  lib,
  ...
}: let
  cfg = config.traits.locale;
in {
  options.traits.locale = {
    US-east = {
      enable = lib.mkEnableOption "eastern United States locale";
    };
  };

  config = lib.mkMerge [
    (lib.mkIf cfg.US-east.enable {
      time.timeZone = "America/New_York";
    })
  ];
}