• Develop real-time countdown web app using React, Tailwind CSS, and Vite, serving 20+ students with live deadline tracking and reducing missed assignment submissions by 80 percent • Implement QR-based event registration system with ticket generation and scanning capabilities, reducing check-in time by 70 percent for 10+ events and eliminating manual entry errors • Design client-side registration and session management system with local storage persistence, enabling 20+ users to maintain personalized event preferences and reducing re-registration time by 90 percent