Worked on the likec4/likec4 repository to deliver a targeted UI upgrade for the Overview Page, focusing on enhancing business value, accessibility, and navigation efficiency. Developed new features including a search bar, a persistent sidebar navigation drawer, and a theme toggle, all aimed at improving user experience and discoverability. Implemented element focus management to ensure accessible navigation from search results to diagram views. Collaborated closely with other contributors, co-authoring and signing off on changes while addressing related issues. Utilized React for front end development and leveraged both JavaScript and TypeScript to build robust, maintainable components within a full stack context.