Deann contributed to the pokerogue-locales and SirzBenjie/pokerogue repositories by enhancing localization infrastructure and refining game data management. In pokerogue-locales, Deann established scaffolding for multi-language support and improved data access reliability by correcting localization keys in JSON assets, using TypeScript and configuration management skills to reduce runtime errors and prepare the project for internationalization. In SirzBenjie/pokerogue, Deann updated the PokemonSpecies data layer to enforce UI-level restrictions, ensuring certain forms were unselectable and unobtainable, which aligned gameplay with release strategy and minimized support edge-cases. The work demonstrated careful, reviewable changes that improved maintainability and supported scalable feature rollout.