It was simply too difficult for me to do that. I learned the language, built derivations, then realized it was just way too much work for what I wanted. I like what Nix brings to the table, but, ultimately, I was perfectly happy to compromise the bullet-proof integrity of nix for the simplicity of pacman + aconfmgr. It's the perfect blend for use on my own daily drivers.
With that being said, I would use NixOS over arch + aconfmgr 10 out of 10 times in a production DevOps environment. What time/effort you give up in terms of instant usability is immediately recovered when you start working in terms of modular and widespread system deployment.
