: SoundSource 5.5 introduced deep support for macOS Shortcuts, allowing users to automate audio device switching and volume changes. How to Access the SoundSource Beta (Test Releases)
SoundSource 6.0. 0Paid Upgrade From SoundSource 5 or SoundSource 4 * Send Any Audio to Multiple Devices, With Output Groups. ... * Rogue Amoeba Under the Microscope » Annual Status ... - Rogue Amoeba SoundSource 5.5.7 Beta
: Route specific apps to different output devices, such as music to headphones while system alerts stay on internal speakers. : SoundSource 5
To install a test release like version 5.5.7 Beta, you must opt-in through the application's hidden debugging menu: SoundSource Release Notes - Rogue Amoeba SoundSource 5.5.7 Beta