Pretty easy to prove you didn’t commit a crime that hasn’t happened, no?

I don’t think it has much practicality, just get some known straight/square object and attach your test indicator to the toolhead. Measure your motion error directly.

Open source is a major boon for process automation in a print farm. I also wouldn’t trust ANY cloud platform with anything remotely sensitive, like product development prototypes.

Looks like that arm would be a floppy noodle, it wouldn’t surprise me if it needs re-calibrating halfway through a print just from temperature changes.