Here are a few screenshots of my current setup. The custom cards for the virtual keypad and group status are available for download in the download section.

Group control, zone status & virtual keypad
Output control & Event log
MQTT Autodiscovery
Web configuration interface
Embedded virtual keypad in the web interface with output control from the galaxy
Light mode
SIA4 control configuration
RS485 configuration
Modbus responses
Galaxy Gateway profile view
Galaxy Gateway Profile view
Galaxy Gateway top view
Galaxy Gateway Font view
Galaxy Gateway back view
Galaxy Gateway Back view