Hi Ricardo, Ricardo Wurmus writes: > I don’t know if this qualifies, but if “guix deploy” were to *create* > a machine (e.g. on EC2 via the Guile AWS library) it wouldn’t be able > to probe it first. But in that case we would have full control over > what the target would be, so no probing would be required. Ah, good point. I suppose didn't think about this all the way through in my response -- we wouldn't be able to probe an unprovisioned machine. But your point gives me even more confidence in the decision to deduce target architecture at runtime and have that as an environment-specific check. Thanks for chiming in! Regards, Jakob