Explore the application of (Distributed) Domain-Driven Design and Command Query (Responsibility) Separation to cloud architectures in this comprehensive conference talk. Learn how to introduce domain models, bounded contexts, and implement CQRS effectively in both legacy software systems and new microservices platforms. Discover practical implementation examples using modern technology standards such as Java, Kotlin, Spring, RabbitMQ, Kafka, MySQL, Elasticsearch, Docker, and Kubernetes. Gain insights into avoiding common misconceptions and fallacies while tailoring systems according to their domain. By the end of this session, acquire the knowledge to apply DDD principles efficiently and effectively in your own projects.