In October 2025, Ioannis Mantoudis contributed to the h5p/h5p-multi-media-choice repository by delivering a localization enhancement that added a Greek translation for the Show solution button through an update to the el.json file. This work focused on improving accessibility and user experience for Greek-speaking users, aligning with the broader localization roadmap. Ioannis applied internationalization best practices, careful JSON data manipulation, and Git-based collaboration to ensure safe, backwards-compatible changes. While the scope was limited to a single feature, the update addressed language friction and supported product-market fit in Greek-speaking regions, demonstrating attention to accessibility and internationalization requirements in software development.