Worked on the sst/opencode repository to deliver targeted UI and UX improvements focused on stability and scalability. Enhanced the Project Selector interface by refining visual alignment and resolving overflow issues, while also preventing unintended image dragging during project edits to streamline user interactions. Improved sidebar navigation by reducing flicker, optimizing render performance, and introducing active-state cues for better usability as the workspace grows. Leveraged React and TypeScript for component-level refinements, applying CSS for consistent styling and efficient rendering. The work addressed edge-case friction and supported a smoother, more scalable user experience in front end development and UI design contexts.