Explore a 29-minute conference talk from React Native EU 2017 that delves into composable native APIs in React Native development. Learn how Cycle.js and hexagonal architecture can help manage both React components and Native APIs declaratively, improving code organization and testability. Discover the challenges of React Native development, including non-official APIs and imperative methods, and understand how to overcome them using a fractal architecture approach. Examine the benefits of this methodology through practical examples, including component testing, hierarchy management, and handling native threads. Gain insights into creating more structured and maintainable React Native applications by combining the declarative nature of React components with efficient native API interactions.