Worked on the ZoeyVid/NPMplus repository to address a certificate generation failure affecting automated provisioning. Focused on backend development and plugin integration, the solution involved upgrading the existing Certbot Gandi plugin to the modern certbot-dns-gandi version, ensuring compatibility with current DNS-based workflows. This change, implemented using JSON for configuration and API integration, improved automation reliability and enhanced the security posture of the system. The upgrade was validated and documented to provide a clear migration path, minimizing risk and downtime. The work demonstrated careful attention to traceability and maintainability, with all changes consolidated into a single, well-documented commit.