During March 2026, this developer delivered a new Market feature for the OneKeyHQ/app-monorepo, introducing Perpetual Contracts Banner Support. They designed and implemented an API endpoint to fetch perps token lists and integrated it with a React-based UI, enabling dynamic rendering of leverage, funding rate, and open interest data. Their approach included refactoring the PerpsTokenListSection into a standalone component and creating a reusable hook for column management, improving maintainability. Security and performance were addressed through input encoding and optimized polling intervals. The work leveraged JavaScript, TypeScript, and front end development skills, aligning new features with existing architectural patterns.