Anyone using PostgREST for the backend?

Hi, I've been checking out PostgREST for the whole morning and it looks both super simple to use and powerful, so I'm thinking about using it as the backend for my projects, at least for all the CRUD tasks.

The problem is that I can't figure out authentication, even though I've been reading tutorials and trying third party libraries.

Can anyone point me some interesting resources on this regard? Or it's just too complicated? If it's too hackish I'd rather stay with Ruby, Python or whatever.