App connector egress via subnet router

Is it possible to set up an app connector with devices that aren’t part of my tailnet via a subnet router?

Ideally I’d be able to broadcast a route on the network so all devices on the LAN would route traffic to specific services out an egress IP via an app connector endpoint.

I have my app connector working, but the docs don’t show this as an example and I haven’t figured out how it would work. My initial thought was to use split horizon DNS but after trying a few things with ControlD I don’t think it will work.

Maybe someone can provide another option for routing all traffic (even non-tailnet devices) to specific domains through an exit node/app connector.