Fabrizio Sestito focused on enhancing software supply chain security and documentation reliability across two open source projects. On the coder/trivy repository, he improved the accuracy of Software Bill of Materials (SBOM) generation for container images by ensuring that vulnerability and dependency data could be mapped precisely to individual image layers, using Go for development and SBOM generation. This involved delivering and validating layer-level data, such as DiffID and Digest, to align scan results with actual image layers. Additionally, in the cncf/toc repository, he addressed documentation quality by fixing a broken hyperlink, improving access to Cloud Native Security Tenets using Markdown.