During their two-month tenure, this developer contributed to ant-design/ant-design and galacean/effects-runtime by focusing on stability, accessibility, and maintainability. They released version 5.22.3 of ant-design/ant-design, addressing cross-component bugs and enhancing accessibility in the Collapse component, while improving TypeScript support for Form.List and Table. In galacean/effects-runtime, they implemented SSR-safe guards to prevent runtime errors by conditionally accessing BOM-dependent objects, using JavaScript and TypeScript. Additionally, they improved documentation and changelog management, ensuring clear communication of changes. Their work in ant-design/x included fixing external link navigation, enhancing user experience and documentation reliability through React and front-end development.