Worked on the arthur-ai/arthur-engine repository to enhance container startup reliability and documentation practices. Focused on debugging instrumentation by adding diagnostics that surfaced the /app/src directory contents during container boot, which improved visibility for troubleshooting. Subsequently, reverted this change to maintain a clean startup process, demonstrating a balanced approach between debugging needs and production performance. Updated the README to recommend pinning engine versions rather than using the latest tag, increasing deployment stability and reproducibility. Utilized Dockerfile and Markdown, applying skills in containerization, DevOps, and documentation to deliver targeted improvements that supported both developer experience and operational consistency.