The sovereign hole-punch hook redoal's ADR-0021 milestone 3 needs: when relay_url is set (VARDE_RELAY_URL or the config file), the endpoint coordinates NAT traversal through the operator's own iroh relay instead of n0's or none — takes precedence over wan_upload's n0 defaults. None keeps the existing LAN-only / n0 behaviour, so nothing changes by default. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>