Thinking about longevity, I think I wanna cut Auth0 loose, and just go back to using our own auth.
I had figured at the time that I didn't want to integrate with OpenNeo ID's whole mess, and I didn't want to write a whole new auth system, so Auth0 seemed to make things easier.
But now, it's just kinda a lot to be carrying along an external service as a dependency for login, especially when we've got all the stuff in the database right here. I wanna remove architecture pieces! Get it outta here!
And I'll finally build account creation from the 2020 site while I'm at it, which seemed like it was gonna be a bit of a pain with Auth0 and syncing anyway. (I think at the time I was a bit more optimistic about a full transfer from one system to another, but that's much further off than I realized, and this path will be much better for keeping things in sync.)
