Firewall app
To manually install Murus Firewall with Homebrew, use the following command:
Current version of Murus.app: 2.5.1
ARM: https://github.com/TheMurusTeam/Murus/releases/download/v2.5.1/murus-2.5.1.zip
Intel: https://github.com/TheMurusTeam/Murus/releases/download/v2.5.1/murus-2.5.1.zip
Website: https://www.murusfirewall.com/