When it comes to integrating software, you can choose between synchronous integration, most often done through REST APIs, or asynchronous communication, often referred to as event-driven architectures. While the synchronous world is pleasantly simple, asynchronous communication still lacks interoperability in terms of protocols, brokers and registries. Going cloud-native with the CloudEvents project for common event metadata and xRegistry as an approach to standardising the management of this metadata in registries will increase this interoperability and ultimately make your life easier when working with event-driven architectures.