During September 2025, Angelito focused on enhancing the desktop messaging experience for the moeru-ai/airi repository by implementing an Enter-to-Submit feature. Using JavaScript and Vue.js, Angelito introduced device detection logic to distinguish between mobile and desktop environments, ensuring that the Enter key submits messages only on desktop platforms. This approach improved cross-platform consistency and reduced friction for desktop users, aligning the submission flow with mobile behavior while preventing unintended submissions on mobile devices. The work demonstrated a targeted application of frontend development skills, addressing a specific usability gap and contributing to a more responsive and user-friendly messaging interface.