https://github.com/mozilla/mod_authnz_persona
(I know Apache may not be that popular with the HN crowd anymore, but I don't currently have the time to dive into nginx and do the same for it. Nevertheless, if anyone wants to do that, I'd be happy to answer questions and provide pointers into the Apache code.)
I still love it. Thanks for the module.
I really want to see it pick up steam and succeed, and I think the number one priority now is to implement plugins for major browsers. I hope the team picks up development again.
To be fair, it's also pretty hard to help out while the team is focused on doing other stuff.
Personally, I view Persona as just an awkward kludge that, while improves some important things, also does certain harm by pushing us one step away from making third parties mere notaries of one's identity, not its very providers.
Because it's me who's the source of my identity, nor my email provider nor domain registrar.