Developed a Docker Compose-based test environment for the verily-src/workbench-app-devcontainers repository, focusing on enabling reproducible local testing and streamlining onboarding for application server development. Leveraging containerization and DevOps practices, the solution integrated a private image source into the Compose configuration using YAML, allowing developers to spin up an isolated, production-like environment with a single command. This approach not only accelerated the local development workflow but also established a foundation for future CI parity and production-level testing. The work demonstrated depth in Docker and container orchestration, emphasizing maintainability and ease of use for both new and existing team members.