How to share Context between Sidebar and Editor

Hey there, I’ve been working on a little side project for my company. I’m building a custom app that loads in a component library (in this case Material UI) I was building the app out to utilize React DND but it appears (I could be wrong here) that each region exists as it’s own React App so sharing context between the regions doesn’t seem super straight forward. I tried to write my own drag and drop events by adding to the window global object (which felt gross) but that also didn’t seem to work. I was just curious if there was a method for the sidebar to talk to the editor region. I was starting to dig into the app SDK to see there were methods that I could utilize there.