It sounds very cool, but I hit a brick wall almost immediately when I tried to use it: how do I run a script? The tutorial video says you type cmd-R but that just reloads the page when you're running it in Firefox.
It's probably fair to say this software isn't the most user friends as a result of its continuous change. In chrome and firefox Control-Enter runs the web app version I find here: https://hundredrabbits.github.io/Ronin/
It seems the keyboard shortcuts are shown in the menu.