nixos-server-conf/shared/ssh.nix

{
  config,
  lib,
  pkgs,
  modulesPath,
  ...
}:
{
  services = {
    endlessh = {
      enable = true;
      port = 22;
    };

    openssh = {
      enable = true;
      ports = [ 54222 ];
      settings = {
        AllowUsers = [
          "dev"
          "root"
        ];
      };
    };
  };
}