Thank you. As someone who uses containers a lot (even to run local programs, shout out to https://blog.jessfraz.com/post/docker-containers-on-the-desk...) this makes some sense to me.

I'm a little way into the Nix Pills document (https://nixos.org/guides/nix-pills/why-you-should-give-it-a-...) which seems to start the explanation from a place where I can understand.