Webhooks, or user-defined callbacks, offer an efficient way to enable real-time communication between systems over the Internet, as opposed to traditional API polling methods. This tutorial outlines the process of building a webhook delivery system using Redpanda to create fault-tolerant applications capable of seamlessly communicating with external services. It explains how to set up a webhook dispatcher that manages the delivery of webhooks to external clients, covering aspects such as event acknowledgment, error handling, and the creation of HTTP endpoints for queuing webhooks. The tutorial details the use of Redpanda for persisting and processing events, ensuring that failed event processing can be retried, and it provides guidance on setting up the necessary infrastructure using Docker and AdonisJS. Additionally, it discusses the creation of consumers to handle events from Redpanda and the use of Axios for sending webhooks to specified URLs, while suggesting further enhancements such as implementing retry policies, supporting various HTTP methods, and handling different payload content types.