During August 2025, Epico_mtfu worked on the ok-amba/default-ok-charts repository, focusing on environment variable management within Helm charts using YAML and DevOps practices. They introduced a RawEnv parameter to the simple-deployment chart, enabling direct control over environment variables through templated deployment updates and a version bump. After validating the feature, Epico_mtfu prioritized production safety by rolling back the RawEnv logic, ensuring the system remained stable and maintainable. Their approach emphasized clear rollback paths and thorough documentation, strengthening release governance and traceability. The work demonstrated careful feature delivery and rollback, reflecting a methodical approach to Helm-based chart development.