What is “sz81” Package?

ZX80/81 emulator
For more details: https://sz81.sourceforge.io/

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install sz81.

  brew install sz81

Now, use sz81!