[kennywinker]

Isn’t that a different problem? Like containerization is useful for dependency + config management, which I understand nixos is good for, but containers are also useful for “spin up a web server (with X configuration) and spin up a db server (with B configuration) at the SAME time on my local machine (configuration Z)”

[rtpg]

Well for example you could set up your nix derivation for a thing and run it on more or less any OS, without needing to also ship Ubuntu or whatever base layer of your Docker image.