Ross Ceballo migrated the science pipelines container for the lsst-dm/prompt_processing repository from a legacy Docker registry to GitHub Container Registry, focusing on standardizing and securing build environments. He updated the Dockerfile and build-base workflow to use a GHCR-based base image, replacing lsstsqre/centos with ghcr.io/lsst/scipipe, and refined Docker tagging logic to improve traceability and rollback. By leveraging Dockerfile, YAML, and GitHub Actions, Ross reduced external dependencies and streamlined CI/CD deployments. His work enabled reproducible builds across development, testing, and production, enhancing auditability and security while modernizing the repository’s containerization and deployment practices within a month.