touchswitcher

Install command: 
brew install --cask touchswitcher

Name: TouchSwitcher

Use the Touch Bar to switch apps

https://hazeover.com/touchswitcher.html

Cask JSON API: /api/cask/touchswitcher.json

Cask code: touchswitcher.rb on GitHub

Current version: 1.4.6

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
touchswitcher 7
Installs (90 days)
touchswitcher 20
Installs (365 days)
touchswitcher 51