Topic header actually says almost everything (authentication + authorization).
Based on modular monolith paradigm. Can serve as an application scaffold (if main principles followed) or as a completely decoupled microservice.
Entities validators still needed to be done (work in progress).
README.md presents just general information.
You can find the code of main features in Credential module folder: ./AuthApi/Credential but the best way to find out how it actually works is to look into integration tests code folder: ./Tests/Integration/AuthApi/Credential/Account or just ask me directly.