Dominik Dorfmeister, known for his work on React Query, TanStack Router, and the epic React Query - The Bad Parts series, walks through the key design choices behind React Query. He explores the trade-offs involved in making an API both intuitive and flexible, the importance of TypeScript support, and the challenges of evolving a library without unnecessary complexity. Dorfmeister also shares insights on managing feature requests and balancing simplicity with extensibility. This talk is a must-watch for anyone interested in API design and the intricacies of building widely adopted open-source libraries. (tkdodo.eu)