title: How can I run two react native applications?
body: <p>I want to run my react native app twice: my device + simulator.</p>
  
  <p>I don't mind using two metro bundler instances.  How can I do that?</p>
  
  <p>Right now, both my devices connect to 8081 - and whenever one connects, it kicks the other one off.</p>
  
  <p>(I first built from XCode to my device/simulator, and then I run <code>react-native start</code>)</p>