From 004eb3c29c875b1446da7410ffab2ddae0c6e71b Mon Sep 17 00:00:00 2001
From: mjallen18 <matt.l.jallen@gmail.com>
Date: Tue, 14 Apr 2026 17:45:29 -0500
Subject: [PATCH] esphome

---
 modules/nixos/homeassistant/services/esphome/default.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/nixos/homeassistant/services/esphome/default.nix b/modules/nixos/homeassistant/services/esphome/default.nix
index d703fe0..44bf944 100755
--- a/modules/nixos/homeassistant/services/esphome/default.nix
+++ b/modules/nixos/homeassistant/services/esphome/default.nix
@@ -13,7 +13,10 @@ in
     virtualisation.oci-containers.containers.esphome = {
       autoStart = true;
       image = "ghcr.io/esphome/esphome";
-      ports = [ "6052:6052" ];
+      # host networking is required for mDNS (multicast UDP) to work so that
+      # ESPHome can discover devices via <name>.local and perform OTA updates
+      # without needing to know device IPs in advance.
+      extraOptions = [ "--network=host" ];
       devices = [
         "/dev/ttyUSB0"
       ];