BlueKey

Kbin is developed by mostly one person, so yes, it progresses quite slowly.
But there is also Mbin with many improvements and much more active development.

I’m fully with you, that an API is still missing and would love to see it implemented in the future.

May I suggest Kbin (or Mbin).
It is compatible to Lemmys posts and voting and has also Microblogging.

Personal example: Fedora (38 - 39). Resolve uses libs which depends on some older versions of a lib, which they don’t ship in the installer.
So I had to replace the depending libs so that Resolve can run with Fedoras more recent libs.

Always link the source if you post a comic, article, …

Maybe an Android Emulator can at least help with the tiny screen problem.
+ More isolation without the need of an extra phone.

Proton

LGTM