What is “varnish” Package?

High-performance HTTP accelerator
For more details: https://www.varnish-cache.org/

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 varnish.

  brew install varnish

Now, use varnish!