Anton Delaruelle updated the CI/CD authentication process for the sigp/lighthouse repository by implementing Docker Hub organization token-based authentication. He replaced the previous use of DOCKER_USERNAME and DOCKER_PASSWORD secrets with DH_ORG and DH_KEY, streamlining the workflow for building and pushing Docker images. This change, delivered through a targeted YAML update in GitHub Actions, improved both security and reliability by reducing the risk associated with credential rotation. Anton’s work focused on enhancing secret management within the CI/CD pipeline, resulting in more robust release processes and faster deployment cycles, while demonstrating depth in CI/CD automation, Docker, and YAML configuration.