react-native-brownfield-migration

Prescriptive workflow for incremental adoption of React Native in existing native apps using @callstack/react-native-brownfield , from initial setup through phased host integration. Use one track per task unless the user explicitly asks for migration or comparison. Use this strategy for brownfield migration planning and execution: Apply these rules across all reference files: Before selecting any reference file, classify the project: Reference this package when: - Expo track - Bare React Native track - Assess app state and select Expo or bare path. - Perform initial setup with @callstack/react-native-brownfield . - Package RN artifacts ( XCFramework / AAR ) from the RN source app. - Integrate one RN surface into the host app and validate startup/runtime. - Repeat integration by feature/screen for incremental rollout. - Select one path first (Expo or bare) and do not mix steps.