Worked on the pymc-devs/pymc repository to refactor the ProgressBarManager’s speed reporting unit representation, focusing on improving clarity and consistency for users monitoring progress. Applied Python development and software engineering skills to streamline the internal logic, ensuring that speed metrics are now more readable and traceable. The approach maintained backward compatibility by minimizing changes to the external API, which supports easier future enhancements and more predictable behavior. This targeted update did not involve bug fixes but emphasized maintainability and code quality. The work resulted in more reliable progress monitoring and simplified debugging, with all changes documented through a dedicated, traceable commit.