The same people (Jet Brains) who made Kotlin have also created Anko which is marketed as "Pleasant Android application development".
With the official release of Android Studio 3 Kotlin is baked in, however it does not appear as though Anko is. You can read about Anko on it's GitHub site https://github.com/Kotlin/anko
From what I gather Anko can help streamline your layouts, SQL, intents, dialogs, fragments and more. There appears to be many different tutorials regarding Anko.
I was wondering:
Have you started using Anko?If you have started using Anko that is?