I'm currently prototyping a Kotlin/JVM server app that will use Firestore as the backend data storage. I noticed that com.google.firebase:firebase-admin:8.0.1 seems to be lacking in documentation and Kotlin extensions for Firestore (Realtime DB seems to have a better experience, but doesn't fit the data structure I need as well). Does anyone know of a better Firestore library for Kotlin/JVM (specifically for a server application)?