What is “pow” Package?

Zero-config Rack server for local apps on macOS
For more details: http://pow.cx/

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 pow.

  brew install pow

Now, use pow!