Worked on repository hygiene and build performance for the Plonky3/Plonky3 project, focusing on streamlining the build process and preparing the codebase for future enhancements. The main contribution involved removing unused dependencies from all Cargo.toml files, which reduced the overall dependency graph and improved build efficiency. This cleanup also included consolidating dependency updates and formatting changes across the workspace, simplifying ongoing maintenance. The work was carried out using Rust and Cargo, with an emphasis on effective dependency management. These changes enhanced the repository’s maintainability and build speed, laying a foundation for more efficient development and performance improvements going forward.