Talk with Alex Moon if you need access to the dev environment in WPE. You can point this to that instance @ https://meetupdev.wpengine.com
If you clone that local you may need to define GOOLE_MAPS_API_KEY in wp-config.php to enable the google Maps integration in WP.
Checkout the .env.local.sample for setting environment variables for the Next app.
npm install
npm run dev