From 503ce29c844ae35caa445a01b445a8a483756565 Mon Sep 17 00:00:00 2001
From: a-kenji <aks.kenji@protonmail.com>
Date: Mon, 3 Jun 2024 22:42:04 +0200
Subject: [PATCH] zerotier-static-peers: add guard condition

---
 clanModules/zerotier-static-peers/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clanModules/zerotier-static-peers/default.nix b/clanModules/zerotier-static-peers/default.nix
index 31fe7d99..2d49dc16 100644
--- a/clanModules/zerotier-static-peers/default.nix
+++ b/clanModules/zerotier-static-peers/default.nix
@@ -20,7 +20,7 @@ let
     if builtins.pathExists fullPath then builtins.readFile fullPath else null
   ) machines;
   networkIds = lib.filter (machine: machine != null) networkIdsUnchecked;
-  networkId = builtins.elemAt networkIds 0;
+  networkId = if builtins.length networkIds == 0 then null else builtins.elemAt networkIds 0;
 in
 #TODO:trace on multiple found network-ids
 #TODO:trace on no single found networkId