I would keep track of them in Tellico, it is designed for this purpose.

I don’t know much about them to be honest, these were just the apps people were talking about

https://play.google.com/store/apps/details?id=com.google.android.safetycore

https://play.google.com/store/apps/details?id=com.google.android.contactkeys

I think Nim is the frontrunner here. Close to Python to write because it is so expressive, close to C speed because it is compiled properly.

https://www.archivebuttons.com/ is the way

The third should be possible with this maintained fork:

https://github.com/c0re100/qBittorrent-Enhanced-Edition

Matrix is very good and flexible. If you need something that is interface-compatible with Discord, there is: https://revolt.chat/