1{ ... }:
 2{
 3  i18n.defaultLocale = "en_US.UTF-8";
 4  i18n.extraLocaleSettings = {
 5    LC_ADDRESS = "en_GB.UTF-8";
 6    LC_IDENTIFICATION = "en_GB.UTF-8";
 7    LC_MEASUREMENT = "en_GB.UTF-8";
 8    LC_MONETARY = "en_GB.UTF-8";
 9    LC_NAME = "en_GB.UTF-8";
10    LC_NUMERIC = "en_GB.UTF-8";
11    LC_PAPER = "en_GB.UTF-8";
12    LC_TELEPHONE = "en_GB.UTF-8";
13    LC_TIME = "en_GB.UTF-8";
14  };
15}