From https://discuss.moodlebox.net/d/16-ghostscript-and-moodlebox, I understand that (only) Ghostscript is missing to add PDF annotations to MoodleBox. Any specific reason for not making that package standard? I see more and more teachers using this feature, specially in BYOD classes.
Yes, this is a good idea.
Only (minor) issue: the size (ca. 50 MB ) of the package will make the disk image a bit bigger.
Issue is fixed . Next version will have this by default.