Hi @sherman,
Thanks for your input. I'm not so sure about your first assumption: NickelMenu is a full featured add-on that has "no purpose" for the end-user if they just want a quick sync script. But I do see your point.
I am using the "Library refresh trick" which I've found on the source of kobo-wget-sync:
https://github.com/wernerb/kobo-wget...esh_library.sh