Nix os  vs Artix Linux

It has all of hackage in it's package manager (which is confusingly named "nix" as well) due to being based around hashing and allowing you to compile in a sort of virtual machine (really just changing the PATH variable temporarily) it solves many of the versioning problems that you commonly have with cabal. Here's a tutorial (there's many others as well) http://www.cse.chalmers.se/~bernardy/nix.html.
Also I should note that you can use the package manager a la carte on Mac and most any linux distro.

Since NixOS stores all its packages in isolation from each other in /nix/store and because of the declarative configuration model, upgrading NoxOS systems is extremely reliable. Furthermore, it gives you the ability to roll back upgrades.

Every package in your system is generated from a configuration file. This makes it very easy to reproduce that environment. Just copy the config file into a new machine and it's done.

You can use and test snapshots without rebooting. Booting into snapshots or test configurations is possible without risking the system's stability.

As everything is isolated, you can have on the same machine multiple configurations to meet project requirements that would be mutually exclusive on other OSes.

Artix actively supports the runit init system known from Void Linux. (Equally besides the OpenRC init system known from Gentoo).

No learning curve if you're coming from Arch or any of its derivatives.

Only the software you would need like Terminal emulator, file manager, media player and a browser.

It is fully compatible with almost all packages from community, extra, multilib and AUR.

You can have a functional system in less than 10 mins using GUI installer OR you can do it "the Arch way".