plasma-containmentactions-customdesktopmenu is ready for plasma 6 :
https://github.com/MatMoul/plasma-containmentactions-customdesktopmenu

Because I am migrating my codes to my local Gitea, my github will definitely be less active.
https://git.netm.ch/explore/repos

As I no longer have time for g810-led, I only maintain CVS.
The OpenRGB project seems a good alternative.

What about archfi/archdi?
I think they are reaching the end but I will complete this topic later.

If you love your HP48 calculator from your studies and want it on Linux, here's the latest solution :
https://github.com/gwenhael-le-moine/x48ng