Drupal is the best CMS available, but I work on modern mobile and web Javascript apps. Here, I present a Javascript module that connects quickly and completely to our beloved Drupal 7 with Services:

https://www.npmjs.org/package/drupal-client

I'll walk through configuring a D7+services instance and generating a cross-platform mobile app with full authenticated connection to D7 accounts and resources. Then I'll show how to create and consume a custom resource. I'll discuss how to secure the connection and make it performant. Then I'll talk about changes coming for Drupal 8.