Does Better Auth offer this? Or any other auth libraries or solutions? I haven't heard of any, but haven't done an intensive look either.
I suppose you could do something with a cached JWT or cached password hash (though sending a password hash to a mobile client spooks me).
I'm in the space and interested in learning more.
This is supported by Better Auth out-of-the box. It doesn't hide these kinds of stuff from you.
I wasn't able to find the Better Auth docs about this use case, can you share them here please?