You should be able to make it work from hard disk with a bit of tinkering. But I don't have a hard disk so my interest is mainly in single floppy auto-booting games.
I don't have any plans to provide this directly, but you could do something along the lines of opening the disk image in an emulator and then copying the files over to a GEMDOS drive on the host filesystem.
Yeah, I just used Hatari to get the files and then had a blast on my STE (TOS 2.06 / 4MB) using an UltraSatan. This could be the start of a while lot of score chasing!