Yeah, the parent comment here is a little off. Node is not for UIs, so they're definitely not using Node for that. It was confirmed that the UIs in the Dragon

Yeah, the parent comment here is a little off. Node is not for UIs, so they're definitely not using Node for that. It was confirmed that the UIs in the Dragon capsule (which, sorry for being pedantic, is not really the "rocket") ran on top of Chromium. It's possible SpaceX uses Node under the hood somewhere, but I don't believe that has been confirmed anywhere. Also kind of interesting to note that it's only the Dragon capsule with humans that has controls, the capsule (and rocket) are both autonomous. The controls on the capsule are only there "just in case".