A large amount of art that isn't porn, but that qualifies as "adult content" under the new policy has been all but purged from the internet.
It's impossible to ban adult content in a cost effective way without also banning a large amount of legitimate art.
Libr is about two thirds of the way there (source is on GitHub) and I have posting, content search, blog feeds and content authoring of video/images and text posts done. Following, liking and the main feed are next.
This will be a Progresive web app - No app store needed, meaning no app store bans.