During March 2025, zxiiro focused on strengthening CI/CD security across pytorch/torchtune, pytorch/tutorials, and huggingface/torchtitan by addressing vulnerabilities in the tj-actions/changed-files dependency. They implemented a standardized, auditable patching workflow using YAML and GitHub Actions, ensuring that compromised tags could not introduce risk or leak secrets. By pinning dependencies to verified commits, zxiiro reduced the attack surface and improved the resilience of continuous integration pipelines. Their work emphasized cross-repository consistency and auditability, reflecting a methodical approach to DevOps and security. Although no new features were added, the depth of security hardening demonstrated strong engineering diligence.