Worked on enhancing model management and error handling across two open-source repositories. In the unslothai/unsloth project, developed improved error reporting for PEFT model loading by surfacing both peft_error and autoconfig_error, which streamlined debugging and reduced troubleshooting time for users and engineers. For liguodongiot/transformers, implemented revision-aware Hub pushes, allowing explicit revision control when deploying models and improving traceability in model lifecycle management. Leveraged Python, API integration, and version control throughout both projects, focusing on robust error feedback and safer deployment workflows. The work emphasized clarity, maintainability, and operational safety in full stack development and model deployment processes.