Yeah, right now, I have some dinky 2.1 speaker setup, and there's a remote control box that feeds back to the subwoofer to control the volume and expose a headphone port. I have to plug/unplug when I want to switch, and the volume control button/wheel has low resolution because it's so small.

The Reddit link uses a Windows program to do it, but I wanted it to be universal because I dual-boot, so doing it in the DAC/amplifier seemed like a better approach. :)