# Language settings { config, lib, ... }: let cfg = config.my.system.language; in { options.my.system.language = with lib; { enable = my.mkDisableOption "language configuration"; locale = mkOption { type = types.str; default = "en_US.UTF-8"; example = "fr_FR.UTF-8"; description = "Which locale to use for the system"; }; }; config = lib.mkIf cfg.enable { # Select internationalisation properties. i18n.defaultLocale = cfg.locale; }; }