title: Start nodejs app that use cross-env with pm2
body: <p>I'm trying to start my nodejs app, the default cmd is the following : </p>
  
  <pre><code>pm2 start app.js
  </code></pre>
  
  <p>I can't do that because I use cross-env and the script as below: </p>
  
  <pre><code>"start": cross-env DOTENV_FILE=.env node build/app.js
  </code></pre>
  
  <p>So <code>npm run start</code> will launch the script above.</p>
  
  <p>How can I serve my app using pm2 and the script above ?</p>