How do you login users on you site?

All of the above, just dont roll your own auth :

https://www.indiehackers.com/post/7-opinionated-tools-i-always-use-to-build-my-saas-and-how-i-go-to-market-faster-c0e93ae84b

I have used Google login in my recent project, https://www.onlibrary.site

I offer Google Login along with traditional email and password login on my site https://twayobiz.com and it has worked perfectly for the last six months. I've been using this method to log people in as well as in past products for nearly a year now.

Firebase with email login was the simplest for me.

Everyone has email, but I wouldn't be satisfied just doing just an e.g. Google login (users aren't guaranteed to have a Gmail). So I'd have to include apple and email as well.

Does that logic make sense?

Devise. Pretty much standard in Rails.

Hi @pjoe.
I wonder why exactly you don't include Twitter login. Do you believe that this option is not popular?