murus

Install command: 
brew install --cask murus

Name: Murus Firewall

Firewall app

https://www.murusfirewall.com/

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

Cask code: murus.rb on GitHub

Current version: 2.7

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
murus 25
Installs (90 days)
murus 53
Installs (365 days)
murus 271