That "little haskell-ish 30 line script" gives you a stable and reproducible system that other distros can never provide. If I can spare myself from doing a clean re-install of my system every few releases just by writing a few lines of configuration, it's absolutely worth it. It also helps that I can reuse that configuration for any of my computers too, because I don't have to spend time installing and configuring software for each new computer I use.
BTW most people don't need to write a full-fledged "script" to get their system up and running. All they need to specify are some configuration variables that specifies the sort of things you'd need to specify anyways if you're going to setup a new system, like which packages should be installed. With NixOS, you write those things on a file instead of typing it on the command line.
BTW most people don't need to write a full-fledged "script" to get their system up and running. All they need to specify are some configuration variables that specifies the sort of things you'd need to specify anyways if you're going to setup a new system, like which packages should be installed. With NixOS, you write those things on a file instead of typing it on the command line.