Chiel Fernhout contributed to the comet-ml/opik repository by improving the project’s onboarding documentation. He identified and corrected a discrepancy in the installation instructions, updating the README to reference the correct script path from .opik.sh to ./opik.sh. This change, implemented using Markdown and documentation best practices, clarified the local deployment process for new developers and reduced potential setup errors. By ensuring the documentation accurately reflected the actual script name, Chiel enhanced the clarity and reliability of the onboarding workflow. The update was traceable through a dedicated commit, demonstrating attention to detail and a focus on maintainable, developer-friendly documentation.