So lets say I was building a small Rails project and wanted not to use Devise, for no particular reason. What's the best (ideally smaller) current alternative?
@noelrap authentication-zero by @lazaronixon gets my vote. It's an auth generator similar to Phoenix's auth generation.
GitHub - lazaronixon/authentication-zero: An authentication system generator for Rails applications.

An authentication system generator for Rails applications. - GitHub - lazaronixon/authentication-zero: An authentication system generator for Rails applications.

GitHub

@noelrap I would probably fall back to rolling my own, if my needs were tiny. It's not trivial but doable in a couple hours. Call it half a day for feature creep and googling references.

I recall an old screencast of "Roll Your Own Auth" from early 201x. Hah, just googled it, and the entire Internet has turned into a sux/rulez forum, with one camp emphatically stressing "you should do it, because trust me" and the other rebutting with "you should not do it, because trust me."

(Don't trust me.)