@ UbuntuBirdy
Sorry, but when I see apt (or similar) I remember I spend 5 years to understand that's the problem.

I made exactly the same experience!

Thanks for your effort, but the Raspi is only a game for me. I'm running SH3D on my Ryzen machine. Even a SH3D without issues on a Raspberry Pi is not usable because it (the Raspi) is too slow... A very small project may work, but my projects are way to big to deal with on a Raspi.
But if I'm bored during the coming weeks, it could be that this game attracts my mind... But not yet...