Contributed to the cloudflare/quiche repository by focusing on refining the internal API for idle timeout management. The work involved removing an unnecessary mutable reference from the idle_timeout function signature in Rust, ensuring the API accurately reflected that it does not alter the Connection state. This adjustment improved code clarity and safety by aligning with Rust’s borrowing semantics, reducing the risk of unintended side effects. The approach emphasized precise commit messaging and targeted refactoring, enhancing maintainability and laying the foundation for more stable API contracts. The work demonstrated a strong grasp of system programming principles and careful attention to language-specific best practices.