I can see how that could be a hassle on nixos and if you don’t have more scripts

FWIW, I use chezmoi for stuff like this, I guess it might be easier to make it work with nixos by setting up chezmoi in HOME, instead of defining scripts directly

At this point, I would make it a bash script and put it in ~/bin. If one has to get back to it 5 years later, it will be painful to debug

For music recorded via microphone, Ardour+Hydrogen

For music created more synthetically LMMS

Jack is the way to go. Save yourself the frustration and use it from the start