Better Auth is awesome and I didn't even realize they hadn't publicly launched yet - I'm using it in production apps, and have seen it being used in all kinds of real-world use cases. IMO it's the best open-source option for a TypeScript developer who wants to implement authentication.

About the dashboard - would this just be an interface to my existing Better Auth setup (e.g. if I had customized the underlying data storage) or are you hosting credentials yourself?

You have my sincerest gratitude for building this incredibly useful library and documenting it so well.