The Technical Implementation:

1. Local LLM Deployment: Mistral NeMo runs within your infrastructure via Ollama
2. n8n Integration: The workflow connects to your LLM through LangChain nodes
3. Basic LLM Chain: Processes text with customized system prompts for data extraction
4. Structured Output Parser: Converts LLM responses into consistent JSON format
5. Error Handling: Auto-fixes malformed outputs to ensure reliable operation

Key Technical Advantage: All data processing happens locally—sensitive information never leaves your network, eliminating data transmission risks while maintaining full processing power.