Worked on enhancing the NNX module object rendering workflow within the google/flax repository by migrating from the Penzai library to Treescope. This involved updating installation commands, refactoring the rendering method to utilize Treescope’s APIs, and removing all remaining Penzai references to streamline the codebase. The transition improved compatibility and visualization for debugging, while also reducing external dependency risks. Focused on codebase maintenance, dependency management, and refactoring using Python, the work emphasized maintainability and developer experience. No bugs were fixed during this period, with efforts concentrated on delivering a single robust feature that improved the stability of the rendering workflow.