Explore the challenges and architectural considerations for building a highly secure, responsive, and scalable IoT cloud connecting over a million smart homes in this comprehensive talk. Dive deep into user expectations for modern smart homes and learn how Lutron Electronics designs their platform to deliver exceptionally low latencies. Discover Lutron's approach to cloud architecture for performance, security, data privacy, and system stability through a 100% infrastructure as code approach. Gain insights into key architectural drivers, securing connections, performance benchmarks, and the impact of commercial projects on smart home systems. Examine major technologies used, including AWS, Kubernetes, OpenAPI, and AWS CDK, for efficient scaling and deployment. Understand how to architect an IoT cloud that powers smart homes at scale while meeting user demands for security, responsiveness, and reliability.