vallum

Install command: 
brew install --cask vallum

Name: Vallum

Application firewall

https://www.vallumfirewall.com/

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

Cask code: vallum.rb on GitHub

Current version: 5.1

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
vallum 10
Installs (90 days)
vallum 35
Installs (365 days)
vallum 123