Worked on the espressif/qemu repository to enhance observability and performance by refining the NPCM GMAC network driver’s logging behavior. Addressed an issue where expected operations generated excessive guest error logs, which cluttered debugging output and hindered performance monitoring. The solution involved refactoring the driver’s C code to replace the error log with a trace event, ensuring that only unexpected errors are highlighted while routine events are tracked unobtrusively. This targeted change improved log clarity and reduced noise, making it easier for developers to identify real issues. The work demonstrated skills in debugging, embedded systems, and network driver development.