In January 2025, 891sdp developed a targeted networking enhancement for the bbc/tsduck repository, focusing on SRT protocol improvements. They implemented a feature allowing callers to bind outgoing SRT connections to a fixed local port, providing greater control and predictability over network behavior in caller mode. The technical approach involved adjusting argument parsing and refining internal address setup, all while maintaining backward compatibility to minimize disruption for existing users. Working primarily in C++ and leveraging expertise in network and socket programming, 891sdp delivered a focused, well-integrated update that enhanced interoperability without introducing interface changes or requiring bug fixes.