During May 2025, Dersoy contributed to the Helicone/helicone repository by delivering a focused UI enhancement for the desktop sidebar. He removed the bottom border and obsolete Tailwind CSS classes, simplifying the sidebar’s visual structure and reducing CSS complexity. Working primarily with React, TypeScript, and Tailwind CSS, Dersoy improved UI consistency across light and dark themes while streamlining the component’s maintainability for future theming. Although the scope was limited to a single feature and did not involve bug fixes, the work demonstrated attention to detail in front end development and contributed to faster review cycles and a more maintainable codebase.