Worked on the SpacetimeDB repository to enhance the developer experience by improving documentation for the UUID v4 and v7 reducer APIs. Focused on clarifying reducer usage and updating example signatures to accurately reflect valid return types, such as () and Result<(), E>, which helps reduce onboarding friction for new contributors. The changes were implemented exclusively in Rust and centered on API design and documentation best practices, ensuring no breaking changes to the API or ABI. This work demonstrated careful attention to maintainability and collaborative code review, resulting in clearer guidance for developers integrating or extending the UUID reducer workflow.