External link to demo is broken. Is it possible to use this plugin to choos

External link to demo is broken.
Is it possible to use this plugin to choose an external 3rd-party keyboard? I.e one that is not embedded specifically into vaadin.
Situation: our vaadin app will be one of multiple running in a kiosk; the kiosk vendor wants to use a virtual keyboard that all web apps in the kiosk will use. The VK will be one of their choosing that is extremely limited to just alpha-numeric, space, backspace, and possibly not any punctuation At All.

Phillip, did you figure out how to use a VK?