During August 2025, this developer focused on improving internationalization in the apache/hertzbeat repository by addressing a critical bug in the translation lookup process. They modified the i18nMap to use application names as case-sensitive keys, rather than converting them to lowercase, ensuring accurate translations for user-facing text when app names contain uppercase letters. This Java-based solution reduced localization errors and improved the user experience across different locales. By diagnosing the root cause and delivering a minimal-risk patch, the developer demonstrated strong skills in bug fixing and internationalization, contributing to more reliable codebase maintenance and reducing translation-related support issues.