Contributed to the HeyPuter/puter repository by developing and refining core front-end features over a two-month period, focusing on user interface and experience improvements. Built a dashboard Files tab with folder and file listings, drag-and-drop uploads, and context menus, while optimizing for mobile usability through enhanced scroll behavior and touch interactions. Implemented URL-based routing for direct navigation and shareable links, and polished dark mode UI for consistent readability. Enhanced multi-file workflows with a floating action bar and select modes. Addressed a window resizing bug and improved permission modals and settings theming, utilizing JavaScript, CSS, and modern UI/UX design principles throughout.