Looks useful for QA testing of distributed systems. I can also see a use case where I snapshot the state of one container from a node in a cluster then pull it

Looks useful for QA testing of distributed systems. I can also see a use case where I snapshot the state of one container from a node in a cluster then pull it onto the next node as it starts up before joining. It could maybe make things converge quicker in blockchain applications as well, where each new node needs to get a copy of the entire chain before it can do useful work?