Watch a 26-minute conference talk exploring sustainable system architecture design principles that challenge the common assumption of needing planet-scale requirements from the start. Learn how to avoid over-engineering while prioritizing adaptability and simplicity through real-world examples from Personio. Discover practical approaches for building scalable systems by focusing on correctness, trade-off analysis, and maintainable architectures that support both technological and organizational growth. Master techniques for reducing unnecessary complexity, making informed architectural decisions, and creating systems that are easier to understand and maintain as teams expand.