title: Is it possible to use two different versions of a npm module in single node.js project?
body: <p>The question is pretty self explanatory. In a single project, I have multiple instances of express app. I want to create a new API that will use express v3 instead of v2 that I currently use across my project.</p>
  
  <p>I have a single <code>package.json</code> file. Is it possible to have npm download two different versions of express ?</p>
  
  <p>Thanks.</p>