Gabriel Navarro developed a security metrics feature for the tweag/nix-security-tracker repository, enhancing how vulnerability information is communicated within GitHub issues. He integrated backend logic and API calls using Python to automatically render CVSS base scores and severity levels in the issue UI, and ensured the base score appears in the issue body upon creation. This approach improves risk visibility and supports more effective triage and remediation planning. Gabriel collaborated across teams, focusing on code quality and maintainability, and applied skills in backend development and testing. The work addressed a clear need for better risk prioritization in security workflows.