What is “sagittarius-scheme” Package?

Free Scheme implementation supporting R6RS and R7RS
For more details: https://bitbucket.org/ktakashi/sagittarius-scheme/wiki/Home

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 sagittarius-scheme.

  brew install sagittarius-scheme

Now, use sagittarius-scheme!