Worked on the supabase/auth-py repository to streamline dependency management and optimize production builds. Focused on Python packaging, the developer refactored the project’s dependency structure by moving pytest-mock from production to development dependencies. This adjustment, implemented through updates to pyproject.toml and poetry.lock, ensured that production environments remain lean and free from unnecessary testing tools, while development and testing workflows retain essential resources. By isolating development dependencies, the work improved build efficiency, reduced the production runtime footprint, and enhanced the reliability of continuous integration processes. The approach demonstrated attention to Python best practices and effective dependency management within the project.