> Hmm, did you mean (package->drivation (grub-configuration-grub > (operating-system-bootloader os))) ? Otherwise it can't work.
Fixing typo: Hmm, did you mean (package->derivation (grub-configuration-grub (operating-system-bootloader os))) ? Otherwise it can't work. It gives you a derivation which you can use derivation->output-path (which returns a file path) on and then invoke the executable or whatever.
