title: Two express js app runs on different threads?
body: <p>I have two express apps running on a different port, as we know express runs on a single thread, so do they assign themselves different cores?</p>
  <p>Cluster module replicates the express app making them use different core.</p>
  <p>But suppose if I take two or more apps and connect them does that means that I have almost created a cluster module?</p>