During March 2025, Gehao Zhang focused on improving scheduler reliability in the Shubhamsaboo/Qwen3-Coder repository. He addressed a scheduler settings conflict by updating the configuration logic in Python, ensuring that conflicting interactions were prevented and scheduled tasks operated predictably. His work centered on debugging and maintaining the scheduler, specifically targeting a bug that previously caused production scheduling failures. By refining the scheduler’s internal logic, Gehao enhanced the stability and reliability of scheduled operations. The depth of his contribution lay in careful analysis and targeted bug fixing, demonstrating strong skills in Python and scheduler development within a focused maintenance context.