I just noticed that ‘-n’ is ineffective: --8<---------------cut here---------------start------------->8--- $ ./pre-inst-env guix build elogind -n --no-grafts -v1 The following derivation would be built: /gnu/store/d20fvmyywlavvbbda101k2906nxfn4l0-elogind-243.7.drv
20.6 MB would be downloaded $ ./pre-inst-env guix build elogind -n -v1 guile-3.0.7 6.9MiB 4.5MiB/s 00:02 [##################] 100.0% ^C $ git log |head -1 commit d855119eceb838ce56d45157a3f45f97dc7a1749 --8<---------------cut here---------------end--------------->8--- Ludo’.