How can I have two instances of the same application route their audio to two different audio devices?

[Giacomo Schiaffino]

I'm trying to run the same program twice, with one instance with its audio going to one audio device, and the other to another audio device.I know I can switch audio devices in the "App volume and device preferences" settings, but that changes both instances of the applications audio devices.I also know of CheVolume, but apparently its no longer in bussiness.Also heard of a github program called audio router or something, but because of legal issues it had to disable the routing feature or something, either way it doesn't work.

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