# Model to use (litellm format) LH_MODEL=openrouter/qwen/qwen3-coder # API keys (set at least one for your chosen provider) # OPENROUTER_API_KEY= # OPENAI_API_KEY= # GEMINI_API_KEY= # E2B sandbox E2B_API_KEY=your-e2b-api-key # Web app authentication LH_ACCESS_TOKEN=your-secret-token # LH_ADMIN_TOKEN=your-admin-token # LH_MAX_SESSION_COST=0.50 # Hugging Face trace storage (optional) # HF_TOKEN=your-hf-write-token # HF_TRACES_REPO=your-username/document-explorer-traces