Download art from https://github.com/vitiral/artifact/releases/tag/1.0.1
Unzip the art binary and move to ~/bin/. Ensure .zshrc says
export PATH=$PATH:$HOME/bin.
On Mac if you get error from OS, locate the file in "Finder", and then right click
and select "Open", it will show a warning and "Open" button, click Open and close the
newly launched terminal. Go back to shell and run art and it will work now.
Run art serve.
If you add a new file, you will have to restart the art serve server and reload
the page in browser.