Duncan Hepple focused on stabilizing the CI/CD workflow for the appvia/appvia-cicd-workflows repository by addressing a Terraform variable file reference issue within the GitHub Actions pipeline. He identified and corrected a misconfiguration in the YAML workflow file, ensuring that environment variables were properly referenced during Terraform steps. This fix reduced the risk of deployment failures and improved the reliability of automated deployments. Duncan’s work demonstrated careful debugging and attention to infrastructure-as-code best practices, leveraging skills in CI/CD, GitHub Actions, and Terraform. Over the month, he contributed to the repository’s operational stability by resolving a critical bug affecting deployment consistency.