overview/NATS.md

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# NATS — overview
This documentation repo does **not** subscribe. It describes the **central Verae NATS.IO 3-server JetStream cluster** that every worker talks to.
Zapier cloud never connects here. Clients use private URLs (`nats://127.0.0.1:4222` on a node, or an SSH tunnel). Do not bind 4222 on `0.0.0.0` without auth.
New functions are new **addresses** (subjects), not new public TCP ports. Copy `verae-nats-process` to add one.