In other retro Mastodon client news...
@colin_mcmillen has created a Mastodon client for Apple II! It was developed and tested on an Apple IIc, and uses an external Raspberry Pi for stripping SSL, parsing JSON, and converting charsets. It's fully features and even supports displaying images!
Video that showcases it: https://www.youtube.com/watch?v=HtCq50Qqwo8
More info in his blog post (focusing on the proxy/API): https://www.colino.net/wordpress/archives/2023/02/07/accessing-the-internet-with-an-apple-c/