Over a two-month period, contributed to both the langgenius/dify and janhq/jan repositories, focusing on enhancing developer workflows and cross-platform reliability. Delivered an improved HTTP body variable selector for dify, enabling structured data handling and increasing configuration flexibility using React and TypeScript. In janhq/jan, stabilized multimodal model argument handling, centralized OS path resolution to reduce file access issues, and integrated the Gemini SDK adapter for more robust provider compatibility. Also normalized MCP tool schemas and improved error dialog localization. The work demonstrated a full stack approach, combining frontend and backend development with thorough testing and attention to cross-platform concerns.