Song Yang Chen focused on stabilizing the build process for the mcgill-robotics/rover-2025 repository by implementing dependency lockfile synchronization. He updated the package-lock.json file using JSON to accurately reflect all dependency changes, ensuring that builds remained consistent across development, CI, and production environments. By locking dependencies, Song reduced environment drift and improved release reliability, which in turn enabled faster debugging and safer deployments. His work centered on dependency management, providing a traceable and reproducible build process. Although the scope was limited to a single feature over one month, the technical depth addressed a core aspect of software maintainability.