Comment by GekkePrutser

Didn't Apple try it 2 years ago? Log in with Apple...

I would never use these services unless it was completely open, free and privacy centric though.

Apple comes a bit of the way but they tend to make stuff work only on their own hardware wish won't work for me. Persona would have been a good option. Especially because it could be self hosted. That would be amazing. It was just a bit too early.