More hosts

A node is another host whose Docker DockiUp manages. The node connects to DockiUp, so it needs no open ports.

1. In .env, set PUBLIC_URL to the address other hosts reach DockiUp at (not localhost):

   PUBLIC_URL=https://dockiup.example.com

   Then run docker compose up -d.

2. On the Nodes page, press Add node and copy the compose file it shows.

3. Run that compose file on the new host with docker compose up -d.

The node shows as online within a few seconds. Pick it as the host when you create a project.