Reflect is a new framework for building multiplayer web apps, offering a fully managed server and a game-style synchronization approach called Transactional Conflict Resolution. This approach allows for flexible and efficient conflict resolution, making it suitable for collaborative editing applications. Reflect is an evolution of the existing Replicache client-side sync framework, and it provides a simple and elegant way to handle concurrency and synchronization. The framework is designed to work with a central server, which acts as the authority for resolving conflicts and ensuring data consistency.