text: // the main file in our front-end app
  // create-react-app expects a file in src/index.js and loads everything from here
  
  import Firebase from 'firebase/app'
  import 'firebase/auth'
  import 'firebase/firestore'
  import React from 'react'
  import ReactDOM from 'react-dom'
  import ReactGA from 'react-ga'
  
  import App from './views/App'
  
  console.log('create-react-app env:', process.env.NODE_ENV)
  console.log('firefly project:', process.env.REACT_APP_ENV)
  
  // // connect our app to firebase 
  // const dbConfig = {
  //   apiKey: process.env.REACT_APP_FIREBASE_API_KEY,
  //   authDomain: process.env.REACT_APP_FIREBASE_AUTH_DOMAIN,
  //   projectId: process.env.REACT_APP_FIREBASE_PROJECT_ID,
  // }
  // Firebase.initializeApp(dbConfig)
  
  // // Google Analytics
  // // https://github.com/react-ga/react-ga#api
  // ReactGA.initialize(process.env.REACT_APP_GOOGLE_ANALYTICS_TRACKING_ID)
  
  // // Sentry
  // // https://docs.sentry.io/clients/javascript/integrations/react/
  // window.Raven.config(process.env.REACT_APP_SENTRY_RAVEN_TRACKING_URL).install()
  
  // // render the App component to our document root with React
  // ReactDOM.render(<App />, document.getElementById('root'))
  