title: Electron-builder How can I add environment variable to My APP
body: <p>My package.json</p>
  
  <pre><code>"scripts": {
          "start-wine":"cross-env NODE_ENV=wine electron .",
          "buld-wine":" electron-builder build -c build/wine.json",
          "start-sheitc":"cross-env NODE_ENV=sheitc electron .",
          "buld-sheitc":"  electron-builder build -c build/sheitc.json"
  },
  </code></pre>
  
  <p>when I start my app,I will add the NODE_ENV to it</p>
  
  <pre><code>const myDev = () =&gt; {
    return process.env.NODE_ENV;
  }  
  </code></pre>
  
  <p>this is easy to run the app from different evn in my Webstrom</p>
  
  <p>So if I using electron-builder to build it ,I also want to run the app in the  NODE_ENV.</p>
  
  <p>I try to search the way but no result.</p>