The big draw is probably that it's declarative, so you can define installations as code much the same way as you would do with Terraform. Instead of needing a pile of messy Ansible playbooks running custom scripts to change anything (and which can break if the target machine has an unexpected config), you'd just have one that pushes a new version of the config and runs nixos-rebuild. Rollbacks are just as easy if anything breaks. What's not to like?

Thanks. I read Smiletolerantly's comment as a personal opinion, rather that a summary of the article. I read several articles in Dutch news outlets, but the main message was 'hurr-durr-Dutch'.

nix is on a whole different level than silverblue and other 'atomic' distributions.