What does HackerNews think of nixos-hardware?
A collection of NixOS modules covering hardware quirks.
That being said, I think there could be a good use case for "meta" NixOS distributions. I'm working on such a thing for a NixOS based RetroArch type thing. But could see a PopOS like configuration, focused on on an “out the box experience”
The point is: currently my NixOS and Home Manager configurations have over 2k LOC total. When you search for configurations on GitHub/Google you are likely to find complex ones. For example, quick search for "nixos gnome" (Google) gives me link to NixOS Wiki (which describes only Gnome part) and blog post (https://gvolpe.com/blog/gnome3-on-nixos/) which is useful but links to really huge configuration (https://github.com/gvolpe/nix-config) that is overwhelming to any beginner.
Great example of such approach is nixos-hardware (https://github.com/NixOS/nixos-hardware) which provides one-line configuration covering hardware quirks.