Tbh I’m pretty new to nixos, but I’m starting to believe if we had that the exact same config (at least without flakes, I’m still having trouble undertanding them) but with a slightly abstracted UI, it would be one of the most user-friendly distros out there.
Like just imagine being able to click “Add program”, write the name of a program, having all the options appear below as dropdown menus or on/off switches, then click big blue button “Apply” to rebuild.