Andrej Karpathy just shared his method for building LLM-powered knowledge bases using nothing but markdown files and Claude Code. In this video, I walk you through exactly how to set it up in about 5 minutes using Obsidian as a front end. I also show you two of my own wikis, one for YouTube transcripts and one for my personal second brain, and break down how this compares to traditional semantic search RAG. https://gist.github.com/karpathy/442a6bf555914893e9891c11519de94f https://ai-2027.com/