Retrieval-Augmented Generation (RAG) combines retrieval-based search with generative models for AI applications.Couchbase offers speed, scalability, and flexibility with features like Memory-First Architecture and Built-in Full-Text Search.Gemma 3, an open-source generative AI model, is optimized for efficiency and local machine deployment in RAG applications.The tech stack includes Couchbase for vector database, Gemma 3 for generative responses, and FAISS for vector similarity search.