What drag and drop solution does Plasmic use?

Hey, guys, sorry if this is a bit off-topic. I’ve been personally on the hunt for a proper drag & drop solution for the past year or so. I think Plasmic can help with offloading a lot of the work that we plan on doing, but the drag & drop still has to be done by hand. Would you guys mind sharing what you’re using internally to manage the drag & drop interactions?

My needs are: edges detection, “global drag & drop” (that is to say, you can drag any item from anywhere into any row/column) and so on. Basically, what you’d expect from any respectable visual builder solution. I know it’s a bit out of scope for however much Plasmic is concerned, but I just can’t fight the right solution for drag & drop interactions for however much React is concerned.

Care to share some insights?