Dominik Kundel outlines a project where developers can create a serverless coffee ordering app, named Twilio Barista, using Twilio's APIs such as Programmable SMS, Twilio Sync, and other web technologies, in celebration of the Hyper Text Coffee Pot Control Protocol's 20th anniversary. The app allows users to order coffee via SMS and receive notifications when their coffee is ready. It employs Twilio Functions for handling incoming orders, storing them in a Sync List, and using React to build a web app for baristas to manage orders. The guide also details setting up real-time order updates using Twilio Sync, updating order status, and notifying customers via SMS when their order is complete. Additionally, the article mentions future improvements and invites readers to explore further enhancements or adaptations for other events, providing resources and contact information for collaboration.