Reference

Deployment Model

Arc has two deploy surfaces. Treat them as separate systems or you will misdiagnose production behavior.

Deploy Surfaces Operations

Deploy Surfaces

Control plane

The Next.js dashboard on Vercel. UI and configuration surfaces live here.

Data plane

The backend proxy process on the VPS. Request forwarding, routing, logging, and policy live here.

Important

A Vercel deploy does not update the proxy. If behavior in the request path does not change after a frontend deploy, the backend service may still be on the old build.

Operations

Dashboard changes go live with the web deploy. Proxy changes require restarting or redeploying the backend service separately, then validating the health endpoint.

bash

# Example validation sequence on the backend host
sudo systemctl restart arc-backend.service
curl http://127.0.0.1:8000/health

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