Jimmy Lewis enhanced security governance for the NuGet/NuGetGallery repository by developing and maintaining comprehensive documentation of malicious and untrustworthy packages. Over two months, he formalized the process of tracking and recording package removals in Markdown, using disciplined version control to ensure traceability and auditability of security-related changes. His work included updating RemovedPackages.md to document specific risk signals, such as Monaco.Better, Monaco.2I, Netherеum.All, and toolsay, thereby improving supply chain resilience and enabling faster incident response. By focusing on documentation and repository integrity, Jimmy contributed to a more robust security posture for the NuGet ecosystem.