use Mix.Config config :ex_cldr, locales: ["root", "bs", "en", "pl", "es", "gd"], gettext: Cldr.Gettext, precompile_number_formats: ["¤¤#,##0.##"], precompile_transliterations: [{:latn, :arab}, {:arab, :thai}] config :ex_cldr, Cldr.Gettext, default_locale: "it"