During March 2025, Asm upgraded the serde_json dependency from version 1.0.132 to 1.0.140 across six Rust repositories, including ndmitchell/pyrefly, facebook/sapling, and facebook/pyre-check. Focusing on dependency management and library integration, Asm applied a consistent, low-risk approach by confining changes to Cargo.toml files, ensuring easy rollback and traceability. This work improved JSON serialization reliability, enhanced security, and stabilized data exchange between Rust crates. By coordinating upgrades across multiple projects and addressing both features and bug fixes, Asm established a maintainable pattern for future dependency updates, demonstrating depth in Rust programming and cross-repository engineering practices.