Explore Shopify's architectural evolution to handle massive celebrity product launches generating up to 80,000 requests per second. Dive into the multi-tenant infrastructure that enables zero-downtime regional failovers, shop migration between shards, and minimized cache purges. Learn how Shopify's Production Engineering team designed and implemented solutions to serve some of the largest online sales events globally. Gain insights into scaling strategies, performance optimization techniques, and architectural decisions that allow Shopify to maintain stability and responsiveness under extreme traffic conditions.