Worked on internationalization and data management features across the pagefaultgames/pokerogue-locales and SirzBenjie/pokerogue repositories, focusing on localization readiness and gameplay data integrity. Established localization scaffolding by adding English assets and empty JSON files for future language support, and corrected localization keys to improve data access reliability using TypeScript and JSON. Enhanced maintainability and reduced runtime errors by ensuring trainer features were prepared for international rollout. Updated the PokemonSpecies data layer to restrict selectability and obtainability of specific forms, aligning UI behavior with release strategy. Demonstrated careful configuration management and delivered targeted, reviewable changes with minimal risk to production environments.