I know Vaadin has sadly moved on from 7, but many of us still use V7. Has a

I know Vaadin has sadly moved on from 7, but many of us still use V7.
Has anyone got this add-on working on 7.6+?
I have the jar, compiled widget, no compile or runtime exceptions…it calls the API without error, but nothing happens.
Looks like it could be a really cool add-on.
If anyone has any tips for getting the component to be visible, that would be much appreciated!