Randy Bai enhanced the system update documentation for the hacks-guide/Guide_3DS repository, focusing on clarifying DNS and Proxy configuration steps to reduce user errors during network setup. Working primarily with Markdown and leveraging strong documentation skills, Randy delivered a targeted feature that improved the sysupdate.md file, making instructions more accessible and maintainable. The update aimed to lower the frequency of user-reported issues related to network configuration during system updates. While the work did not involve bug fixes or code changes, it demonstrated attention to detail and a user-centric approach, contributing to smoother update experiences and reduced support overhead for the project.