I just implemented an IndieAuth server for Aperture, which sounds crazy but it's actually pretty cool. Now you can log in to apps like https://indiepaper.io and they can post content directly into a private channel!
If you have an Aperture account, try logging in to Quill using https://aperture.p3k.io as your URL. Here's a little demo of it in action!
@macgirvin you might be interested in the work
@aaronpk is doing at indieweb.
(see for example the post I'm replyn to)