add react-native in existing node project
<p>There is existing package.json with <code>npm start</code> pointing to <code>"babel-node server.js"</code>. </p>

<p>After doing react-native init in a separate folder, and then I am copying android , ios folders along with index.android.js and index.ios.js to existing node project. 
Then I also renamed new project root wherever they were being registered to new root such as in index.android.js ( <code>AppRegistry.registerComponent('newname', () =&gt; newname)</code>) and gradle builds</p>

<p>But it takes much longer time to start JS packager now in new project upon doing <code>react-native run-android</code> and is also giving concurrent.ExecutionException which it did not give with old root where <code>"react-native init"</code> was done.</p>

<p>Existing project also had relay and react which were upgraded to 0.14.8 for react and react-native itself is 0.22.2</p>

<p>What is recommended way to add react-native android to existing node project if not doing copy paste like above such that startup time still remains same [ emulator is of genymotion Nexus 5] ? </p>