👉 The Controller.io I/O (Controller Orbit) is a powerful and flexible event-driven architecture for building microservices and serverless applications. It allows developers to create modular, loosely coupled components that communicate through events, enabling scalable and maintainable systems. Controller.io uses a hub-and-spoke model, where a central controller manages the lifecycle of various services (spokes) and handles event routing, authentication, and data management. This setup facilitates real-time data synchronization and efficient resource utilization, making it ideal for complex applications that require high scalability and reliability.