Worked on maintenance and observability improvements for the flashbots/rbuilder repository, focusing on enhancing code clarity and maintainability. Addressed a cosmetic issue by correcting a log message typo in relay_submit.rs, changing 'buidler_name' to 'builder_name' to improve log accuracy without affecting runtime behavior. This low-risk bug fix, implemented in Rust, reinforced the reliability of logging for future debugging and streamlined ongoing maintenance efforts. Emphasized careful code refactoring to preserve repository stability while supporting better developer experience. The work laid a foundation for more effective observability, ensuring that future enhancements can be built on a clear and consistent codebase.