"Chat with your documents" usually means uploading them to someone else's cloud. The QVAC SDK does the whole thing on-device. It ships native RAG: ragIngest your files, embed turns them into vectors locally, ragSearch finds the relevant passages, and completion answers from text the model can actually see. No external vector database. What you can build with it: a knowledge base over years of your notes, contract and research Q&A, a support bot grounded only in your manuals, a private second brain that cites its sources. Your private documents never leave the machine. No cloud vector store, no API key, no leak surface. npm install @qvac/sdk