use Mix.Config config :ex_money, auto_start_exchange_rate_service: false, open_exchange_rates_app_id: {:system, "OPEN_EXCHANGE_RATES_APP_ID"}, exchange_rates_retrieve_every: 300_000, callback_module: Money.ExchangeRates.Callback, # preload_historic_rates: {~D[2017-01-01], ~D[2017-01-02]}, log_failure: :warn, log_info: :info, log_success: :info, json_library: Jason, exchange_rates_cache: Money.ExchangeRates.Cache.Dets, default_cldr_backend: Money.Cldr