Already nixpkgs is there with 1.2 million packages and it works on NixOS, other distros and even Mac.

It's a cross platform, natively performance app unlike containerised flatpak or snap. Everyone should try nixpkgs. It even solves a lot of problems.
No need to learn nix or nixos for this, just u can use it as like any other package manager and much more.
#nix #nixpkgs #packagemanagement