The nice use-case I see for Nix is: you can specify your env requirements cleanly in a way that you can install them both in MacOS (eg replacing ‘brew install P

The nice use-case I see for Nix is: you can specify your env requirements cleanly in a way that you can install them both in MacOS (eg replacing ‘brew install Postgres’), and into a Docker container (which happens to be very slim as it doesn’t carry a full Linux distribution with it). I never liked “run your dev env in docker” as it’s quite slow. So in practice you end up with two sets of build envs, assuming you support local development.