Kent Iversen enhanced the felleslosninger/github-workflows repository by implementing default image signing within the continuous integration workflows. He updated the CI build and publish processes so that image signing is now enabled by default, removing the need for manual configuration and ensuring all published images are automatically signed. This change, tracked under PF-1516, directly strengthens supply chain security by making image verification an integral part of the deployment pipeline. Kent utilized YAML and GitHub Actions to modify the workflow logic, demonstrating a focused application of CI/CD principles. The work addressed a specific security gap with a targeted, maintainable solution.