How to incrementally adopt Expo in a brownfield React Native app

Many React Native developers with mature and complex apps often consider migrating to Expo to leverage its advanced capabilities, but the transition can seem daunting. However, adopting Expo doesn't require a complete overhaul but can be approached incrementally, focusing on the Expo features most beneficial to the team. Developers are encouraged to identify their app's primary pain points and prioritize Expo tools that address these, such as using the Expo CLI for streamlined development, SDK packages for enhanced capabilities, and EAS Build and Update for efficient build and deployment workflows. The process can begin with simple steps like installing the Expo package to support Expo Modules, followed by gradual integration of other features. Continuous Native Generation (CNG) and Expo Router offer long-term benefits in maintainability and code organization but may be deferred until other quick wins are realized. Ultimately, Expo's modular approach ensures that developers can enhance their existing React Native apps at their own pace, aligning with their specific needs and priorities.

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