Worked on the facebook/sapling repository to deliver AOSP Branch Bookmark Logging within the Repo Metadata Logger, focusing on backend development using Rust. This feature introduced a mechanism to accurately log bookmarks and associate file paths with their respective branches in the AOSP codebase, directly supporting the Code Quality Score platform. By integrating bookmark data with dim_scm_repo_metadata, the work established a reliable source of truth for AOSP files and improved traceability across repositories. The solution addressed challenges in branch-level attribution, reduced misattribution in code quality metrics, and laid the foundation for scalable, branch-aware analysis and more targeted quality assurance efforts.