Hi,
I was able to do some testing with my hyperspin set.
The good news is that the version of retroarch I'm using (1.77) works fine without any modification.
All cores launch correctly from hyperspin.
The irata emulator in standelone (atari jaguar) and hatari (atari st) also works.
However, the other emulators (snes9x, all .emu, yaba san shiro, redream, ppsspp ...) do not launch from hyperspin.