text: // Define app configuration in a single location, but pull in values from
  // system environment variables (so we don't check them in to source control!)
  module.exports = {
      // Twilio Account SID - found on your dashboard
      accountSid: process.env.TWILIO_ACCOUNT_SID,
  
      // Twilio Auth Token - found on your dashboard
      authToken: process.env.TWILIO_AUTH_TOKEN,
  
      // A Twilio number that you have purchased through the twilio.com web
      // interface or API
      twilioNumber: process.env.TWILIO_NUMBER,
  
      // The port your web application will run on
      port: process.env.PORT || 3000
  };