Make this awesome tool to desktops available as UI design software app (Linux/Win/Mac)

[dercheffe]

Hi,
this tool is a great base to get used as template/UI design software on desktop too.
Scenario:
A designer wants to design a new Drupal theme from scratch or based on a starter theme and needs twig templates and CSS definitions. GrapeJS could with it's WYSIWYG functionality could speed up the design process massively.