🔧 How to build your own MCP server

Most MCP tutorials hand you a Node project. You install an SDK, write a tool
handler, wire up stdio, and end up with something that runs on your laptop as
you, with your credentials, for exactly one user.

That's fine for a demo. It's not something you can give a customer.

Here's the other way, end to end: a database, one config file, a token,...