Chandan Rao developed robust custom error handling features for the vercel/examples repository, focusing on enhancing user experience and UI stability. He implemented custom 5xx error pages using the Next.js App Router, integrating request ID and error code tokens to streamline support and troubleshooting. Chandan designed accessible, descriptive error home pages and a timeout test route, ensuring consistency with design guidelines and cross-device responsiveness. He addressed UI rendering issues by refining font settings and layout, improving visual coherence across pages. His work leveraged React, TypeScript, and CSS, demonstrating a thoughtful approach to front end development and maintainability within a short timeframe.