Hey Ludo,
> Do we need to do it for ‘lower-object’? I think that one is (almost) > always called from a gexp compiler where it’s explicitly passed ‘system’ > and ‘target’. Yes because of lower-object call in "system-derivation" procedure of (gnu services). > Also, a test or two would be welcome as it’s easy to break it without > noticing. > > Otherwise LGTM, thank you, and sorry for the delay! Pushed with a few tests on core-updates, thanks for reviewing! Mathieu