Your .env file should have one line

Every AI app I've shipped recently rewrote the same plumbing. The OAuth dance for Slack. Encrypted storage for an API key. Refresh-token logic that finally fails on the 3rd call after an hour. Wiring up an MCP client to a server behind a bearer token someone pasted into a Notion page. I'd write it, copy-paste it into the next app, watch it rot. Each new agent built by a different teammate, slightly differently, with slightly different bugs. We were a small team and the integration code became mo