Rigorous discussion on lack of baked-in authentication

Has there been any rigorous discussion of why Rails doesn’t have
baked-in
authentication? I’ve seen a handful of posts alleging that
“authentication
varies too much” but I’m having trouble envisioning which fundamentally
distinct use-cases would prevent a single library from solving 98% of
user
needs.

Can anyone point to such a discussion? Failing that, I’d like to hear
about
various use cases which would be incompatible or messy if they were
implemented in a single library.

Being an ‘opinionated’ framework, it seems like authentication is
something
that would benefit from an opinion.

If there were to be a ‘backed-in’ authentication solution, it would
likely be devise or something very devise-ish. I think that would be a
little to presumptuous of Rails to force a heavyweight solution upon
users. There are existing application generators that bundle devise
into a new app’s creation. I do not see a need for what you ask.

If there were to be a ‘backed-in’ authentication solution, it would
likely be devise or something very devise-ish. I think that would be a
little too presumptuous of Rails to force a heavyweight solution upon
users. There are existing application generators that bundle devise
into a new app’s creation. I do not see a need for what you ask.