Nix package

[shuvashish76]

Requested at NixOS/nixpkgs#411094
Nix is an universal package manager https://nixos.org/download/#:~:text=Nix%20:%20the%20package%20manager that can be installed on any Linux distribution, Windows (via WSL), MacOS etc... :D

[mumu-lhl]

I don't use Nix, so it need someone else to package it.

[shuvashish76]

Move this issue to discussion page as it's specifically not related to Ciyue/this repo.