Yoshi worked on the planetarium/9c-infra repository, focusing on improving deployment reliability for the 9c-portal service. He delivered a targeted update to the Kubernetes deployment configuration, using YAML to pin the production environment to a specific image tag. This approach ensured that production consistently ran the intended portal version, aligning deployments with the latest approved release and reducing the risk of version drift. By tying deployment changes to a specific commit, Yoshi enhanced release governance and traceability, enabling precise rollbacks if necessary. The work demonstrated a focused application of DevOps and Kubernetes skills to address reproducibility and operational consistency in production.