I found this particularly interesting - https://www.firebase.com/docs/security/custom-login.html https://www.firebase.com/docs/security/custom-login.html - sinc

I found this particularly interesting - https://www.firebase.com/docs/security/custom-login.html https://www.firebase.com/docs/security/custom-login.html - since it allows you to integrate with existing apps. Are there any other BAAS providers that have something similar?