How We Built It: CareExplain AI was built using React and TypeScript with Vite for a fast, modern frontend and Tailwind CSS for a clean medical-grade UI. We integrated Google’s Gemini API via the @google/genai SDK to power document simplification, multilingual translation, and grounded chat explanations. The backend uses Node.js and Express to securely handle API requests and manage document processing, with SQLite (better-sqlite3) for lightweight local data storage. We implemented multilingual voice playback using the Web Speech API, and added smooth animations and interactive visualization using Motion and Lucide React icons.
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