title: Is it possible to use cloud functions background triggers and express app in two separate files?
body: <p>I once did a project in which I had Cloud Functions background triggers and all of my express app routing functionality in a  single file and boy, did it become huge.</p>
  
  <p>I would like to know if it's possible to separate then, and in a single <code>firebase deploy</code> command, send both files to the server.</p>