title: Nested NestJS servers
body: <p>I need to run an NestJS server who can start and stop another NestJS server
  when accessing endpoints from the first one. An be able to stream the logs of the second one.</p>
  <p>I have no idea how to do that. I tried with child-process but it doesn't work.</p>
  <p>Maybe someone has an idea ? Thanks by advance</p>