Someone finally came up with a Soundflower replacement, and it's free for Mac users | MusicRadar
Audio Router - Open-Source Windows App
GitHub - audiorouterdev/audio-router: Routes audio from programs to different audio devices.
Microsoft Apps
Note: Windows 10 can do this! · Issue #145 · audiorouterdev/audio-router · GitHub
This Replacement For Soundflower Works On Newer Versions Of MacOS
Great audio-routing tool for streaming : r/linux_gaming
Audio Router doesn't work anymore on Windows 10 · Issue #17 · audiorouterdev/audio-router · GitHub
Routing and monitoring Audio Sources in OBS – The WP Guru
audio router - YouTube
Microsoft Apps
GitHub - wolfreak99/audio-router: Updated Fork of the now abandoned audiorouterdev/audio-router. Need help maintaining, please feel free to contribute.
GitHub - rbclark/audio-router: Route audio files to different output devices on your system asynchronously.
Download Audio Router Free
GitHub - kshoji/Android-Audio-Router: The library to force audio source on music apps.
GitHub - ShortDevelopment/VB-Audio-Router: Advanced audio routing application build with UWP and the WinRT Audio Graph API
OS Catalina users can now use BlackHole for free custom audio routing | MusicTech
Routing audio from applications around your PC: a quick overview : r/Twitch