I’ve accomplished a major milestone: I have finished moving Findka from Firebase to Biff. I’ve written a detailed explanation on Findka’s blog:

Migrating to Biff, a self-hosted Firebase alternative for Clojure

That post explains what you can do with Biff, but it doesn’t explain how to actually use Biff. I’ll write more documentation for that later (hopefully soon, but I need to do some feature development on Findka first).