clan-core/clanModules/root-password/default.nix

{ pkgs, config, ... }:
{
  users.mutableUsers = false;
  users.users.root.hashedPasswordFile =
    config.clan.core.facts.services.root-password.secret.password-hash.path;
  sops.secrets."${config.clan.core.machineName}-password-hash".neededForUsers = true;
  clan.core.facts.services.root-password = {
    secret.password = { };
    secret.password-hash = { };
    generator.path = with pkgs; [
      coreutils
      xkcdpass
      mkpasswd
    ];
    generator.script = ''
      xkcdpass --numwords 3 --delimiter - --count 1 | tr -d "\n" > $secrets/password
      cat $secrets/password | mkpasswd -s -m sha-512 | tr -d "\n" > $secrets/password-hash
    '';
  };
}