Worked on cross-platform build improvements and reliability enhancements for the firedancer-io/firedancer and related repositories, focusing on system programming and build automation using C and Rust. Delivered a new Linux GCC ARM n1 machine target with advanced build settings, enabling ARM deployment and improving code hygiene. Enhanced test infrastructure by refreshing fixtures, expanding logging, and hardening fuzzing and test vector tooling to reduce CI noise and improve reproducibility. Integrated the Firedancer testing harness into Solana SVM, streamlined dependency management with Cargo, and improved build reproducibility by pinning dependencies, resulting in faster, more predictable releases and robust validation across multiple environments.