Open Source Authentication Service

Hello everyone.

Seems, building in public is becoming more and more popular, so I decided to share my work with the community.

I'm building an open-source API-based authentication service. Yes, there are a lot of different authentication solutions, but I see a missing one. None of them have a functionality that allows building complex authentication processes using various authentication methods and different user data sources - databases and APIs.
I've published service on Github
https://github.com/maximthomas/gortas

So, I've just built a very first version. There is a quick start guide.
https://github.com/maximthomas/gortas/wiki/Quick-Start

Any feedback and questions are very appreciated.