From f35e8c755c97dcea38c321d9eae334eb4d654ff0 Mon Sep 17 00:00:00 2001
From: root <root@openclaw.thehellings.lan>
Date: Wed, 1 Apr 2026 17:14:12 -0500
Subject: [PATCH] fix: only set listen.port on lighthouse/relay nodes (regular
 nodes use OS-assigned port 0)

---
 modules/nixos/nebula.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/nixos/nebula.nix b/modules/nixos/nebula.nix
index 135c517..517ce4b 100644
--- a/modules/nixos/nebula.nix
+++ b/modules/nixos/nebula.nix
@@ -152,7 +152,8 @@ in
 
       listen = {
         host = "0.0.0.0";
-        port = cfg.port;
+        # Lighthouses and relays need a fixed port; regular nodes use 0 (OS-assigned)
+        port = if (cfg.isLighthouse || cfg.isRelay) then cfg.port else null;
       };
 
       lighthouses = lib.optionals (!cfg.isLighthouse) [ cfg.lighthouseNebulaIp ];