No rewrite required: How to bring Expo into mature native apps

Integrating new technology into a mature native app can be simplified by using Expo, which allows for incremental adoption without the need for a full app rewrite. Expo and React Native offer speed and flexibility by enabling developers to introduce new features or views one at a time, seamlessly integrated with existing apps. This approach is particularly beneficial for teams needing platform parity, as it allows a feature to be developed once and deployed across both iOS and Android simultaneously. Larger organizations benefit from shared JavaScript components that reduce duplication and enhance consistency, while teams divided by domain can focus on specific development areas, such as mobile platform engineers maintaining infrastructure and product teams building features. Expo supports a migration strategy where aging native codebases can gradually be replaced with React Native, optimizing development cycles without compromising existing investments. Integration involves setting up project structures and making specific configuration changes on both Android and iOS, with detailed guidance available for each step. Despite current limitations, such as certain libraries requiring additional setup or being unsupported, Expo is committed to improving these integrations, as demonstrated by examples in various open-source apps.

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