Home page:
https://github.com/jagenjo/litegraph.js
Obtain code:
zip file: download
git: git clone git@github.com:jagenjo/litegraph.js.git
Install node & npm:
MacOS: brew install node
Ubuntu: apt install node-js
Windows: instruction here
Open editor in client mode:
open litegraph.js/editor/index.html
Open editor in server mode:
cd litegraph.js
npm i
node utils/server.js