How I migrated my bare React Native app to Expo

In this guest post, Alfred, a Norwegian developer with a decade of experience, shares his process of migrating a seven-year-old React Native app, "Blur," to Expo, a recommended framework for app development. The app, a party game providing challenges and mini-games, includes complex components like an iOS widget and custom fonts. Alfred outlines the reasons for the migration, such as the need for a robust CI/CD solution, reducing app complexity, and avoiding native code hassles, especially with the retirement of AppCenter's CodePush. The migration involved several steps: adapting dependencies to Expo, using Expo's Continuous Native Generation (CNG) for native code, and employing Expo Application Service (EAS) for effective CI/CD. He also tackled challenges like ensuring widget support and maintaining localization. Despite some drawbacks like longer build times and potential plugin conflicts, Alfred is pleased with the streamlined development experience Expo offers, emphasizing that while Expo introduces a degree of vendor dependency, it remains an open-source tool providing flexibility for future development needs.

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