Giving Your Accounting App a Brain: NestJS "MCP"

Recap Let's be real: in the last blog we were running a local MCP server on my pc, wiring it up to GitHub Copilot like mad scientists. It was awesome. But it was a lab experiment. The "brain" was tethered to my machine. So. what if we built the brain into the app itself? The System So here's the setup. We have three players in this game: The Web App: React, Vite, Redux Toolkit. The chat lives at /magic-bookkeeping. The Backend: NestJS, PostgreSQL, Redis. This is where the real work happens. The AI Service: Claude Haiku 3.5 via Requesty. AI, sitting in between.