You know what? I will buy it again for you right now!

Try setup arch or even gentoo with the help of the arch wiki or gentoo wiki

Emacs!

But there is a modul! Look into Hyprland wiki

I dont think thats really the goal here. NixOS is not designed to be used by your grandmother. Better Documentation would sometimes be nice though.
By the way, there already is https://github.com/vlinkz/nixos-conf-editor

Now im interested for release

Are they really using NixOS for development? Hella Cool

I use REAPER, which also has native Linux support and run most of my vsts over yabridge. Works really well for me overall but i try to use as much native foss vsts as possible. See https://safereddit.com/r/linuxaudio/comments/wntpyd/linux_plugins_thread_2022/ for some examples

Yes it probably is but there is really no sense in replacing all the packages