sound-siphon

Install command: 
brew install --cask sound-siphon

Name: SoundSiphon

App audio capture

https://staticz.com/soundsiphon/

Cask JSON API: /api/cask/sound-siphon.json

Cask code: sound-siphon.rb on GitHub

Current version: 3.8.3

Requirements: macOS >= 11

Analytics:

Installs (30 days)
sound-siphon 2
Installs (90 days)
sound-siphon 6
Installs (365 days)
sound-siphon 28