Dunno how many of you tried it in the past with success... but I present you Amiga 600 booting from USB stick
You only need to insert in a custom Kickstart the following files:
- subwayusb.device (or device that you have for USB)
- PSDStackLoader (this must be the one you're using now and works)
The tricky part is that it didn't fit in my Custom Kickstart Image since Poseidon.library was huge!
Thankfully I got some space, leaving Workbench.library outside the Kickstart, and putting it in LIBS: which worked a treat \o/
It's not for my everyday usage, but really cool I might add!