This article discusses building Android N notifications that can be used to notify users of changes in content, such as new posts or product releases, without requiring manual input from the user. The author provides a step-by-step guide on how to implement bundled notifications on Android N, including how to add images and customize them using colors and text. The article also covers the use of webhooks in Contentful and how to transform them into data readable by the Google Cloud Messaging service using Heroku. Four imaginary friends, Lewis, Mary, Steve, and Ada, are used as examples to illustrate the process, with each friend experiencing different types of notifications and interacting with content from a blog space on Contentful. The article concludes with a discussion on how to handle potential issues such as out-of-memory errors when downloading images.