During January 2025, contributed a major feature upgrade to the starkware-libs/stwo-cairo repository by enabling WebAssembly (WASM) runtime support without relying on the standard library, allowing broader deployment in constrained environments. The work involved refining memory address bounds for safer execution, upgrading the cairo-vm dependency to leverage improved performance and security, and migrating JSON parsing from sonic-rs to serde_json for more reliable serialization. Focus remained on delivery and stabilization of the runtime upgrade, with comprehensive updates to documentation and test coverage. Demonstrated strong skills in Rust, dependency management, and serialization while addressing runtime safety and compatibility requirements.