Is it possible to force Youtube sign-in only?

I am looking at forum software out there for my community. I see that Google sign in is an option but any oAuth should work? So perhaps I’ll have to look into that more but I believe that means I should be able to use Youtube as an authentication.

Next, is it possible to only allow sign through this method?

Yes you can disable local logins.

I wouldn’t think that Gmail and YouTube logins would be different.


YouTube is a google service so enable Google logins and disable local logins.