During February 2025, Kahw Lee focused on backend reliability for the browser-use/browser-use repository, addressing a critical bug in model name assignment. Using Python, Kahw implemented defensive error handling to ensure that when the input was None, the system would still assign a valid model name, preventing runtime crashes caused by NoneType errors. This work involved adding edge-case input tests and robust guards, which improved the stability of downstream workflows dependent on consistent naming. Although no new features were released, Kahw’s targeted fix reduced production incidents and enhanced code reliability, demonstrating depth in backend development and careful attention to error handling.