Jos Dehaes focused on infrastructure improvements for the ProvableHQ/snarkVM repository, targeting build system efficiency and dependency management. He updated Cargo.lock to ensure all Rust dependencies remained current and secure, reducing the risk of instability. By removing the cargo:rerun-if-changed directive from the build script, Jos optimized build times and minimized unnecessary rebuilds, streamlining both local and CI workflows. His work demonstrated a strong command of Rust, Cargo, and build-script optimization, resulting in a more reliable and efficient development pipeline. Over the month, Jos delivered two features that enhanced stability and velocity, though no critical bugs required attention during this period.