We teamed up with Shyamal Ruparel, Developer Evangelist at Contentful, to build an application using Courier and Contentful during our respective live streams. We updated Shy's existing blog that he created using Python, Flask, and Contentful to allow readers to subscribe to post updates. The application used the Courier Lists API to add readers to lists based on blog tags and set up Contentful Webhooks to send notifications to specific lists when new posts were published. We also added a Subscribe UI to the existing blog and allowed users to unsubscribe. The full project code is available on GitHub, and we stream a new Courier Live every Wednesday at 12 pm PT (3 pm ET) where we explore more projects like this.