Also the arm computer is not present, makes me wonder what they used for the computer, if there was an actual prop computer ie android or raspberry pi or something similar, or if there was a chroma green insert, or both, depending on the scene.
I think we are on track with that one. I would bet the computer was a phone based off of the photos. The case definitely looks 3d printed, and if they were trying to green screen the whole thing, then it would just have a surface and the reference marks on it. It has a compartment to fit something in it though. I suppose they could just stick a glass screen with reference marks in there, but not sure why it wouldn't be on display if that were the case.