This should not be automatically selected. Instead it should default to production and the API base constructor should take a URL to change the base request URL.

So something like

fun connect(username: String, password: String, url: String = "https://api.wildfyre.net/")

// In tests
val api: () -> WildFyre
  get() = { WildFyre.connect(testing_username, testing_password, testing_api) }

Just like that, yeah. Maybe with @JvmOverloads too, but that's a minor thing