I know this demo is kinda trashy, but it's a good introduction into how a "registration" works with #doauth and #verifiablecredentials.
https://www.youtube.com/watch?v=22zbm2qNhSw
If you have any feature requests for a next-gen federated authentication and authorisation system, hit me up or make an issue: https://github.com/doma-engineering/do-auth/issues
You can also contribute stuff like biometrics support via react-native (to eliminate the password) and more fun protocols! We also need replication via federation for high availability.
If anyone is excited about #AAA system that anyone can set up in under half an hour (as opposed to #keycloak) and that uses VC/DID by default, and doesn't use blockchain to store data, let's chat too!