Contributor2's example-node.tv has no WireGuard route to Heimdall's LAN (10.1.10.x),
so the <YOUR_HOST_IP>:7700 private address is unreachable from there.
Use the public cf-orch endpoint instead:
GPU_SERVER_URL=https://orch.circuitforge.tech
Contributor's Huginn has WireGuard to Heimdall LAN — <YOUR_HOST_IP>:7700 stays correct.
Added both options to docker-standalone.sh for clarity.