Things like UI/UX changes in the web app, features for Jerboa and so on obviously with the intention of contributing to them. Sorry I hope I haven’t missed some important links. :(
For iOS, Mlem is the most notable work in progress. /c/[email protected]
Highly recommend it. Been using it for the last few days and it’s been stable!!
Also this comment was posted from the app!
I just tried using MLEM but it was having an error about not being able to connect to my home instance. I’m sure it was a user error on my part, but for now I’m just using Firefox on my phone.
I imagine more casual discussion is on the Lemmy community: https://lemmy.ml/c/lemmy and jaboa community: https://lemmy.ml/c/Jerboa
For more serious discussion I imagine respective GitHub will be great:
Probably github. There are already a lot of bug reports and feature requests to pick up.