Fix SignalK mdns rebuild dependencies

signalk/CHANGELOG.md

@@ -1,3 +1,6 @@
+## 2.28.0-2 (2026-06-28)
+- Add Bonjour/mDNS development headers so native npm modules such as mdns can rebuild after add-on updates.
+
  
 ## 2.28.0 (2026-06-20)
 - Update to latest version from SignalK/signalk-server (changelog : https://github.com/SignalK/signalk-server/releases)

signalk/Dockerfile

@@ -57,7 +57,7 @@ COPY ha_automodules.sh /ha_automodules.sh
 RUN chmod 744 /ha_automodules.sh && /ha_automodules.sh "$MODULES" && rm /ha_automodules.sh
 
 # Manual apps
-ENV PACKAGES=""
+ENV PACKAGES="libavahi-compat-libdnssd-dev"
 
 # Automatic apps & bashio
 COPY ha_autoapps.sh /ha_autoapps.sh

signalk/config.yaml

@@ -57,5 +57,5 @@ uart: true
 udev: true
 url: https://github.com/alexbelgium/hassio-addons
 usb: true
-version: "2.28.0"
+version: "2.28.0-2"
 webui: http://[HOST]:[PORT:3000]