In February 2026, Lars Jessen focused on maintaining the network stack in the nxp-upstream/hal_nxp repository, addressing a targeted bug in packet protocol family handling. He resolved an issue where incoming packets were incorrectly assigned the AF_INET protocol family, which could lead to inaccurate packet size calculations when IP fragmentation was disabled. By setting the protocol family to AF_UNSPEC, Lars ensured that headers beyond the IP layer were properly considered, improving the robustness of packet processing. His work demonstrated a strong command of C programming, embedded systems, and network programming, delivering a well-documented, maintainable fix that enhanced overall code reliability.