Worked on the svix-webhooks repository to enhance the Rust SDK’s public API surface, focusing on long-term maintainability and developer experience. Introduced a custom lint rule in Rust to prevent unnameable types from being exposed in the public API, while carefully adjusting visibility to ensure necessary consumer options were accessible. Internal error types and sealed traits were explicitly kept private to reduce risk and simplify downstream usage. This API design and library development effort improved robustness, minimized the chance of breaking changes, and made the SDK easier to adopt for other developers, reflecting a thoughtful approach to public interface management.