Roman Karpov focused on modernizing the CI/CD pipeline for the hawk-ai-aml/github-actions repository by upgrading the Node.js runtime in the build-reactjs.yaml workflow from version 18.x to ^22.12.0. This targeted change, implemented using YAML and managed through GitHub Actions, aimed to enhance both security and performance of the continuous integration process while minimizing risk to production builds. Roman’s approach emphasized traceability and auditability, ensuring that the upgrade could be tracked and reviewed effectively. Over the course of the month, he maintained CI reliability by delivering a low-risk, production-free feature that improved the overall build workflow’s robustness.