During January 2025, Guan Binrui focused on maintaining and improving the DimensionDev/Maskbook codebase rather than shipping new features or fixing bugs. He concentrated on code health by performing targeted refactors and updating dependencies, using JavaScript and TypeScript to ensure compatibility and reliability. Guan enhanced CI/CD automation and expanded test coverage, leveraging tools like Jest and GitHub Actions to streamline validation processes. He also documented contribution guidelines and prepared handover notes to facilitate smoother onboarding for future contributors. This work laid a foundation for safer, faster development in upcoming sprints, emphasizing long-term stability and maintainability over immediate feature delivery.