Learn how to create custom Native Modules for React Native applications in this 21-minute conference talk from React Advanced 2019. Discover techniques for accessing platform-specific APIs, reusing existing Objective-C, Swift, or C++ code, and implementing high-performance, multi-threaded functionalities like image processing or databases. Explore a real-world example demonstrating the process of building and integrating a Native Module, enabling you to extend React Native's capabilities and optimize your app's performance.