Webhook for MailChimp that syncs list subscription changes with external TestFlight users in iTunes Connect.
Make sure you have Node.js and the Heroku Toolbelt installed.
$ git clone [email protected]:CrossWaterBridge/beta-sync.git # or clone your own fork
$ cd beta-sync
$ npm install
$ npm start
Your app should now be running on localhost:5000.
$ heroku create
$ git push heroku master
$ heroku open