M1 MacMini Server with three subnets

Channels DVR Server
#1

I am running ChannelsDVR on an M1 Macmini 9.1, 15.7.2 Server with an extra USB ethernet dongle. I have two subnets on the macmini ethernet and one subnet on the USB ethernet dongle. How can I get ChannelsDVR to listen on only one of those three subnets?

#2

Channels DVR listens on 0.0.0.0
That is every IP address on every network interface on your machine
Perhaps firewall rules that drop/block your DVR servers port on all interface IP's, except the one you want to use.

#3

Thanks for the suggestion, I was hoping I could select listening IP interfaces like AdGuard Home and Homebridge

#4 
$ ./channels-dvr -help
Usage of ./channels-dvr:
  -dir string
    	working directory for runtime data and logs
  -host string
    	bind address for local web interface
  -port int
    	port for local web interface (default 8089)
  -safety-check
    	run safety check and exit