nixos

Does NixOS have a way to PXE many machines via a kickstart or preseed equivalent? I'm curious to experiment with it in the context of a University environment and we use either Cobbler or Foreman for host provisioning.

Also curious what the best practice is for config management. I only know enough to know there's a nix config file that declares everything. Does this completely supplant puppet/salt/ansible, or do you use them together?

Thanks for any tips!