opensong

Install command: 
brew install --cask opensong

Name: OpenSong

Presentation software

https://www.opensong.org/

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

Cask code: opensong.rb on GitHub

Current version: 3.4.8

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
opensong 2
Installs (90 days)
opensong 10
Installs (365 days)
opensong 41