Is it possible to select a separate input and output device when booting an external server? The way you do this in the scsynth args is with the slightly cursed -H "Input device" "Output device" option, but I’m not seeing any way to get that from overtone. (It’ll just do something like -H "\"Input device\" \"Output device\"")
I think this was supported pre-0.12.3152 via a :hw-out-device-name key, but this got (accidentally?) removed in that release. Funnily enough you can still see a remnant of it in SC-ARG-INFO-CLEANUP-FNS but it’s never used anywhere else.
Edit: Oh, I guess I can just make an aggregate audio device and just use that. That’s a simple enough solution that this probably isn’t a real limitation then.