Alexandr worked on the Insomnia-IT/feed repository, delivering targeted UI improvements to the Custom Fields section of the admin interface. He implemented always-visible sections and introduced a mobile visibility column to enhance data accessibility for administrators, particularly on mobile devices. By refactoring the editing UI and removing the denyBadgeEdit gating, Alexandr streamlined the user experience and improved code maintainability. His work focused on front-end development using React, TypeScript, and CSS, addressing a specific feed issue while laying groundwork for future enhancements. The depth of the changes reflects a thoughtful approach to both usability and long-term maintainability within a short timeframe.