Nix/NixOS has a few key advantages: - everything from kernel and drivers up is specified declaratively in a uniform, expressive way. You version control your e

Nix/NixOS has a few key advantages: - everything from kernel and drivers up is specified declaratively in a uniform, expressive way. You version control your entire infrastructure. Not in the sense of a Dockerfile. The Ansible stuff, the Dockerfile, the build of your library, the build of your own software is in one language that can happily and easily reference each other as a unified system. - with a few caveats, you are cryptographically guaranteed to get the same result, every time, no matter what. if it worked once, it will never break again. - it has mechanisms reminiscent of git or something: you can checkout a different computer or set of computers, and if you don’t like the result, revert to what you had before. - it treats patching of arbitrary software as a completely typical and first-class activity. if anything doesn’t work how you want, you write a patch, check it in, and it works now and always will. upstream at your leisure or not at all. - you get exactly what you want on your system, no more, no less. no gnome-keyring-daemon bullshit on your headless server Ubuntu 20.04 LTS. - caching of artifacts both locally and via cache servers run by you or others or both is very granular. no giant slabs of docker composition towering ever higher.