@ariadne
>- the ability to quarantine unknown instances until they are approved by the admin (pleroma has supported this through a combination of multiple features since 2019)

Wait, what are these features? Being able to check what's trying to federate would be a godsend for me as an admin, but the best I've figured out was running an allowlist instance and manually adding things whenever I see a broken thread, and that gets old fast.

@hipsterelectron @jdp23 @moira @freakazoid @inquiline @cmdr_nova @julian
>i believe there are already mastodon-compatible codebases not written in ruby on rails

What do you mean by "mastodon-compatible"? If it's "talks AP and presents (a superset of) masto client api" then you're replying to one (sharkey) and I'm too writing from one (akkoma), and about every other microblogging software from here (pleroma, forks of misskey other than the mainline, gotosocial, even snac2) count.

And as for development of AP outside of Mastodon, there are Fediverse Enhancement Proposals: https://codeberg.org/fediverse/fep but they seem to be largely ignored, unfortunately.