I need a solid React Native build that runs smoothly on both iOS and Android, with reliable data-synchronization at its core. The app is a practical utility rather than a social or e-commerce experience, so fast load times and consistent data across devices matter more than flashy UI flourishes. Here is what I expect: • Source code written in React Native (TypeScript preferred) that compiles cleanly for both stores • A data-sync layer that keeps local and remote records in step, even while offline, then reconciles automatically when a connection returns • Codemagic pipeline configured from my Git repository through to TestFlight and Google Play internal testing, including signing, environment variables, and automated versioning I’ll provide API endpoints, icon assets, and store credentials on project start. Once the first working build is up, we can iterate on minor UI polish, but the primary acceptance criteria are: zero unresolved build errors, background sync proven with toggled connectivity, and a Codemagic workflow that finishes green in under 15 minutes. Feel free to mention any additional libraries or tooling you find essential—Redux Toolkit, React Query, Firebase, Realm, or your own preference—as long as it supports smooth synchronization and straightforward maintenance.