Migrating to Nucleus: Sync Engine Overhaul

This chapter explores the transition from a complex Python-based sync engine to a streamlined Rust-based engine, Nucleus, addressing the challenges of data integrity and user intent. It discusses the importance of a robust data model that prevents illegal states and the intricacies of managing user actions during offline periods. Additionally, the chapter highlights the use of Lamport timestamps to maintain operational consistency across distributed systems and offers insights into design trade-offs for developers.