nix-software-center VS calamares-nixos-extensions

That makes sense, too. You might also be interested in nix software center.

you can use nix-software-center by vlinkz

I don't plan on it at this moment, however, if someone finishes the packagekit backend for Nix, the appstream data I'm working on collecting would work to display icons and screenshots. Also if someone who knew qt/kirigami development wanted to make something similar to nix-software-center, the backend tool that reads and modifies configuration values is a separate project: nix-editor, and I would be willing to help with any issues that arose from that.

building Nix... building the system configuration... copying path '/nix/store/n4ly8q7x7k4bf4hdgxjrrv955n1404a4-glibc-locales-2.35-163' from 'https://cache.nixos.org'... building '/nix/store/wby1m40a39dj4xwy16nvcspn76wng706-source.drv'... trying https://github.com/vlinkz/nix-software-center/archive/0.0.1.tar.gz % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 100 1212k 0 1212k 0 0 1209k 0 --:--:-- 0:00:01 --:--:-- 1856k unpacking source archive /build/0.0.1.tar.gz error: hash mismatch in fixed-output derivation '/nix/store/wby1m40a39dj4xwy16nvcspn76wng706-source.drv': specified: sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= got: sha256-uolXh0z6gRBUZIXVSGyLn3swogz7VHvCwKCr02BejTQ= (use '--show-trace' to show detailed location information)

In my opinion, NixOS is a great operating system and is very straightforward and stable once you learn how to use it, however for someone without knowledge about Nix or who has never heard of NixOS, it can be very confusing. I stumbled upon Nix and NixOS a bit less than a year ago, and since then have worked to try to create tools that make using NixOS more user/noob friendly, namely: adding the calamares installer to NixOS, creating a graphical configuration editor: nixos-conf-editor, and creating a GNOME software-like software center: nix-software-center.