> So it
seems likely that there is something special going on with exactly your
computer or your context installation.
Still, I fail to see what this implies. In particular, I find it not the most professional to assume a dust-proof environment for a real-world product, and even unreasonable to assume that for something like `context --help` given that no other commands are making a scene when printing help messages.
What binary are you using for luametatex ? The normal linux 64-bit one from the lmtx distribution?
Yes, it is.