Steve enhanced multicast routing reliability and scalability across the firedancer-io/firedancer and anza-xyz/agave repositories by standardizing multicast TTL handling. He addressed a routing limitation in firedancer by setting the IP_MULTICAST_TTL to 64 on transmission sockets in socket mode, ensuring multicast packets could traverse beyond local subnets. In agave, Steve introduced configuration-driven multicast TTL support, propagating the setting through SocketConfiguration to UDP sockets at the Node level. Working primarily in C and Rust, he applied network and socket programming expertise to align multicast behavior across both codebases, reducing operational risk and enabling more robust, scalable deployments in Linux environments.