During November 2025, Han developed locale-aware PowerPoint generation for the bytedance/deer-flow repository, focusing on backend and API development using Python. Han introduced a locale field to the GeneratePPTRequest model, updating the generation pipeline to support content in multiple languages and enabling true internationalization. This included implementing zh_CN locale support and updating documentation to guide usage. By addressing a missing locale field, Han resolved a key limitation, allowing the system to produce localized PowerPoint files and reducing the need for manual customization. The work enhanced the product’s localization readiness, supporting global customers and strengthening the overall internationalization infrastructure.