LIFEGRAPH: The Operating System for Human Identity

"Reasoning across decades, not days."

LifeGraph is a "Scientific Biographer" that solves Digital Amnesia. It captures the invisible 90% of your life (conversations, video, insights) and uses Gemini 3.0 to structure it into a searchable knowledge graph.

🏆 Hackathon Features (Gemini 3.0 Era)

LifeGraph is built on the premise that LLMs are not just chatbots, but Semantic Kernels for databases.

1. Multimodal Perception (Gemini 3.0 Flash)

• Voice-First Interface: Friction-free capture. Speak your thoughts, and Gemini structures them into Events, Emotions, and Domains.
• Video-to-Memory: Native multimodal ingestion. Stream raw video to Gemini 3.0 to capture non-verbal context (tone, environment) that text misses.

2. Longitudinal Reasoning (RAG + Gemini 3.0)

• Vector Memory (Pinecone): Every memory is embedded using text-embedding-004 and stored in a high-dimensional vector space.
• Hyper-RAG: The "Ask" tab doesn't just keywords search. It retrieves semantic concepts (e.g., "Burnout patterns") across years of data and uses Gemini 3.0 to reason about cause-and-effect.

3. The "North Star" Identity

• Genesis Mode: An AI interviewer that helps you define your core values and 50-year vision, which then acts as the context for all future data analysis.

🛠️ Tech Stack

• Frontend: Next.js 14, TailwindCSS, Framer Motion (Universal Web App / PWA)
• Backend: FastAPI (Python)
• AI Models:
  • Perception: gemini-3.0-flash (Video/Audio/Image)
  • Reasoning: gemini-3.0-flash (RAG Synthesis)
  • Embeddings: text-embedding-004
• Database: Pinecone (Vector), JSON (Flat file storage for portability)

🚀 Quick Start

Prerequisites

• Node.js 18+
• Python 3.10+
• Google Gemini API Key
• Pinecone API Key

Installation

1. Clone the Repo

   git clone https://github.com/yourusername/lifegraph.git
   cd lifegraph

2. Backend Setup

   cd backend
   pip install -r requirements.txt
   
   # Create .env file
   echo "GEMINI_API_KEY=your_key" > .env
   echo "PINECONE_API_KEY=your_key" >> .env
   
   # Run Server
   python -m uvicorn main:app --reload

3. Frontend Setup

   cd frontend
   npm install
   npm run dev

4. Open App Visit http://localhost:3000 to start your LifeGraph.

🔮 Future Roadmap

• The Archive: Ingesting 20 years of Google Photos/Drive to build a retrospective graph.
• The Wearable: Serving as the backend for "Always-On" hardware pins.

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Built for the Google Gemini Hackathon. Powered by Gemini 3.0.