text: const app = require('./app');
  
  app.set('port', process.env.PORT || 3000);
  app.set('address', process.env.NODE_IP || '0.0.0.0');
  
  app.listen(app.get('port'), app.get('address'), function() {
      console.log(`Server running: http://${app.get('address')}:${app.get('port')}`);
  });
  