Neat! I did build one of the original projects and even got mouse working (I think before anyone else) so many years ago... Might have to try this one!
Hello NeXT Community: Can this device be reversed so USB Keyboards and mice synch with NeXT Hardware like this one from Matt at Drakware?
https://www.drakware.com/shop/p/nextusb , I know he has been sold out for awhile , I ping him and see if any new news :)