Kyriakos worked on user-facing lobby UX improvements for the OpenFrontIO repository, focusing on enhancing the match-joining experience. He implemented a dynamic Lobby Join Button in TypeScript, replacing static text with state-aware updates and an animated three-dot indicator to provide clearer feedback during the join process. The changes, encapsulated within PublicLobby.ts, preserved existing matchmaking logic while improving perceived responsiveness and onboarding. Kyriakos updated i18n translation keys in en.json to support localization and documented the approach for future scalability. His work emphasized UI/UX design, thorough local testing, and clear documentation, resulting in a polished, maintainable front end feature.