This plugin represents the culmination of years of work for me, now with a team who has decided they want to help me maintain it!  You can find all the relevant information on our wiki here:

https://github.com/GodotNuts/GodotFirebase/wiki

This has instructions for use as well as descriptions of functions and plans for the future. You can also find it in the Godot Asset Library, though the most-up-to-date will always be github itself.

I'll be using this space more or less entirely for devlogs as we continue to implement features across the board.