Francisco D. enhanced the arrow-kt/arrow repository by implementing secure artifact signing and publishing within its CI/CD pipeline. He updated the GitHub Actions workflow to leverage new environment variables and tokenized Sonatype credentials, replacing legacy OSS credentials to improve security and compliance. Using YAML for workflow configuration, Francisco centralized artifact signing, which increased traceability and audit readiness for releases. His work focused on secrets management and CI/CD best practices, reducing credential risk and streamlining the release process. This update laid the foundation for compliant open-source software distribution, demonstrating depth in automation and security within modern DevOps environments.