Worked on the containers/container-libs repository to deliver a feature enabling default runtime flags for OCI runtimes, enhancing automation and consistency across deployment environments. Developed a new configuration section that allows users to specify default flags per runtime, implemented in Go with a focus on robust configuration management and system administration practices. Added validation logic to ensure only existing runtimes are referenced, reducing configuration drift and potential deployment errors. Updated documentation in Markdown to clearly outline new configuration options and usage guidelines. This work improved maintainability and deployment reliability by integrating configuration defaults with runtime validation in a containerized environment.