A client. :)

Once I get the basics ready to go that most clients have, I plan to add other utility apps to it like a Note keeping app and a few other ideas I have.

Elon mentioned an "X" app for all needs. I plan to do something similar but decentralized.

I build in segments. The first thing I will have is all public key stuff, view/read only. Then I'll add posting and direct messaging.

I'm just building it on my own in my spare time so I have no timeline but I'm making progress. :) I'm highly motivated.