I encountered a complex challenge involving the synchronization of data between a local database and a remote server, requiring both offline and online storage solutions. To achieve a clear separation of concerns, I opted for the MVVM architecture. For local storage, I implemented the Room database, which offers greater efficiency compared to SQLite. To manage API calls, I utilized Retrofit, ensuring that network operations were both robust and easy to handle. I employed WorkManager to manage asynchronous tasks, allowing for reliable background synchronization. I also carefully resolved conflicts between local and server data. Furthermore, I integrated LiveData to provide real-time updates and maintain lifecycle awareness. This comprehensive approach enabled me to create a seamless and efficient data synchronization solution.