Worked on deploying the Emoine service within the traPtitech/manifest repository, focusing on robust configuration management and infrastructure as code practices. Leveraged Kubernetes and YAML to provision deployments, services, ingress, and TLS certificates, while implementing secure handling of environment variables and secrets. Improved deployment manifests to enhance reliability and scalability, and addressed a bug by excluding Emoine from Application Sets to prevent unintended deployments in both main and sakura environments. Aligned configuration across these environments to minimize deployment errors, demonstrating a methodical approach to cross-environment consistency and operational safety. The work reflects a strong foundation in DevOps and Kubernetes workflows.