Over a two-month period, contributed targeted improvements to the facebook/pyrefly and facebook/sapling repositories, focusing on dependency management and performance optimization using Rust. In facebook/pyrefly, updated blazesym and blazesym-c dependencies to enhance symbolization speed when handling multiple sources via symbolic links, ensuring workflow stability and compatibility. For facebook/sapling, upgraded libbpf-rs and libbpf-cargo to version 0.26.1, which improved project functionality, maintainability, and alignment with upstream releases. The work emphasized careful dependency alignment, build validation, and reduction of technical debt, demonstrating a methodical approach to maintaining robust, high-performance Rust-based systems without introducing regressions or instability.