21:31
2026-05-22
dev.to
artificial-intelligence
RAG Architecture with n8n + PostgreSQL (pgvector) + Ollama Gemma4 on AWS EC2
This article details a Retrieval-Augmented Generation (RAG) architecture built on AWS EC2 that uses n8n for workflow orchestration, PostgreSQL with pgvector for vector storage, and Ollama to run the G…