react-native-haptic-feedback is a React Native library providing comprehensive haptic feedback capabilities for iOS and Android. It implements a dual-tier fallback chain on both platforms: iOS uses Core Haptics (CHHapticEngine) with UIKit generator fallback, while Android uses View.performHapticFeedback constants and VibrationEffect API. The library offers both simple trigger methods and complex pattern-based haptic sequences, includes cross-platform AHAP file playback with Android fallbacks, and provides React-first APIs like the useHaptics hook and TouchableHaptic component. Architecture features platform-specific native modules bridged via React Native's TurboModule system, with TypeScript source and auto-linking support.