Building a $30,000 AI Memory System for Business Using Obsidian and Claude Code

Hey guys, just posted a full build of the $30,000 AI memory system any business can set up using Obsidian, Claude Code, and a simple chat interface. No vector databases, no enterprise RAG, no $50K build. Just markdown files on disk, a CLAUDE.md rulebook as the frontal cortex, and a thin Next.js chat UI that lets any team member query the entire knowledge base with grounded citations. Walk through the four-layer architecture, ingesting a real article, watching Claude Code catch a contradiction between current and archived pricing docs, and building the chat interface from scratch. By the end you have a working knowledge base a business could use Monday morning. https://youtu.be/rLEctwB9eSM