Nix is the main thing I miss while in FreeBSD. ports/pkg is just not very good compared to it. I’ve tried to halfassedly port Nix to FreeBSD a few times and the code is surprisingly bad and non-portable for the problem it’s solving. I hope it’s getting better, though.
I’ve been wanting to try out NixOS for quite a while now. And I always had this thought at the back of my head that given the functional nature of the OS, it could probably replace tools like SaltStack, and that would be a very nice mode of software deployment.
typo in the title, should read “software deployment model”