During July 2025, this developer contributed to the skkuding/codedang repository by localizing the codebase, specifically translating Korean comments within the problem service to improve code readability and maintainability. Focusing on backend development and code refactoring, they ensured that all changes were non-functional, introducing no behavioral modifications but enhancing internal documentation for future contributors. The work was implemented in TypeScript and emphasized internationalization, supporting knowledge transfer and onboarding for Korean-speaking engineers. Through disciplined code reviews and CI-friendly practices, the developer maintained code parity and minimized risk, demonstrating a thoughtful approach to code maintenance and collaborative software development.