infrastructure/hosts/hydrogen/system/networking/default.nix

{...}: {
  networking = {
    # the name of the machine
    hostName = "hydrogen";

    # the domain used for the machine
    domain = "fainsin.bzh";

    # domain name servers, use clouflare family
    nameservers = ["1.1.1.2" "1.0.0.2"];
  };
}