From 69e752bb6b7dba4e3a7afd95e9a2ee8b94131881 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kier=C3=A1n=20Meinhardt?= <kmein@posteo.de>
Date: Mon, 29 Dec 2025 15:23:53 +0100
Subject: [PATCH] flake: document ControlPath=none

---
 flake.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/flake.nix b/flake.nix
index d468763..3026a68 100644
--- a/flake.nix
+++ b/flake.nix
@@ -128,6 +128,10 @@
 
                       # Set SSH options based on address type
                       if [[ "$reachable" == *.onion ]]; then
+                        # why? ControlPath=none
+                        # SSH is trying to create a control socket with a path that includes
+                        # the full .onion hostname, and Unix domain sockets have a path length
+                        # limit (typically 108 characters). The .onion address is too long.
                         export NIX_SSHOPTS="-p ${
                           toString machines.${hostname}.sshPort
                         } -o ProxyCommand='${pkgs.netcat}/bin/nc -x localhost:9050 %h %p' -o ControlPath=none"