Roon Extension: Roon Web Controller v1.2.0

Hi everyone, following the advice given to me in this thread I understand that the only way to access Roon with an additional window/method is through web browser and this plugin.

I currently run Roon Core on my OSX. I assume I could use Terminal on OSX to install this plugin, but when reading more about this Web Controller, unfortunately I am already stuck on the first line of the installation step on Github:

Ensure that Node.js version 6.x or higher is installed.

Does anyone know if a “how-to” on OSX has been posted? I searched “OSX” in this thread but nothing came up.