Containers solve a related, but different problem. They help you black box some application so that you can split out the application state (on volumes) from th

Containers solve a related, but different problem. They help you black box some application so that you can split out the application state (on volumes) from the application itself – and you don't have to worry about things trampling on each other. Nix gets you a reproducible environment – which is just as applicable to building containers. Most containers on docker hub would be very hard to exactly reproduce, if you build them with nix you don't have that issue.