Elinor Holt developed and integrated a Developer Mode feature into the BU-Spark/ml-bpl-rag repository, enabling real-time access to runtime logs and query details directly within the Streamlit sidebar. Using Python and backend development skills, Elinor focused on improving the developer experience by surfacing debugging information in context, which streamlined troubleshooting and accelerated development cycles. She also enhanced repository hygiene by removing unnecessary pycache files and updating the .gitignore, ensuring a cleaner codebase and reducing maintenance overhead. These contributions improved onboarding for new developers and established clearer contribution guidelines, reflecting a thoughtful approach to maintainability and workflow optimization within the project.