Is there a plan to implement a plain JS version of the Kanban board.
If not, and in the interim, can you point to an example of how the ExtJS components can be used in a React App? I got the impression from the marketing page that is possible?
Yes, it's planned to come soon.
About Ext JS Components with React integration If you want take a look, here is a blog post talking about Ext JS Gantt with React integration, please check if it helps: https://www.bryntum.com/blog/using-ext-gantt-with-react/
Fabio Jr. Policeno