Explore the critical role of multi-cluster Kubernetes architectures in building robust Internal Developer Platforms (IDPs) through this 14-minute conference talk by Nick Eberts, Product Manager at Google. Discover how tenant abstraction across multiple Kubernetes clusters is fundamental to a mature IDP, challenging the misconception that such architectures are peripheral. Learn how multi-cluster setups enhance resource isolation, scalability, and disaster recovery while simplifying developer workflows. Gain insights into incorporating multi-cluster management into existing systems and adapting the infrastructure layer to meet new tenant capacity needs. Leave with a clear understanding of implementing and advocating for multi-cluster strategies within your IDP, ensuring efficient and adaptable infrastructure prepared for evolving organizational demands.