Worked on the bokeh/bokeh repository to improve reliability in Sphinx extension development by addressing import errors related to repository root path detection. Introduced an internal module, _internal.py, which defines REPO_TOP using pathlib and os modules to consistently resolve the repository’s top-level path, regardless of the current working directory’s depth. This approach prevents IndexError exceptions that previously occurred when importing bokeh_plot under shallow directory hierarchies. The solution focused on enhancing developer experience and reducing friction in documentation workflows. The work leveraged Python, Sphinx, and documentation best practices, resulting in a robust fix for a critical bug affecting extension packaging and imports.