Koch developed a localization token system for the DuckDuckGo UI, focusing on scalable internationalization within the duckduckgo/duckduckgo-locales repository. By introducing new localization tokens and importing them using PO language files, Koch enabled immediate updates to prompts and messages, supporting additional languages and improving clarity for end users. The technical approach centralized token management, allowing future token additions with minimal code changes and reducing maintenance overhead. Koch’s work leveraged skills in software development, localization, and internationalization, laying a foundation for more efficient language support. The project addressed the need for adaptable, maintainable localization infrastructure, though it was limited in scope.