Developed DevContainer support for the docker/cagent repository to streamline local development and onboarding. The work focused on creating a reproducible, containerized development environment by introducing Dockerfile and YAML configuration files within a dedicated .devcontainer directory. This setup aligned local development workflows with CI/CD processes, reducing environment drift and minimizing debugging time caused by inconsistent setups. By leveraging containerization and DevOps practices, the developer enabled contributors to quickly spin up standardized environments, improving testing reliability and onboarding efficiency. The contribution established a foundation for consistent development experiences, emphasizing maintainability and ease of use through Docker and infrastructure-as-code principles.