A good friend passed on this link. And what an amazing thing!
So basically a Raspberry Pi (which can be had for sub $50 USD), running a bare metal program can emulate the control signals of an Amiga floppy drive. It reads disk files from a flash card, and serves them to the Amiga. It can even kickstart an Amiga 1000.
I know that floppy emulators have been an on/off hot topic, but this is pretty interesting!
And of course it has a DIY angle to it as well.
Here is a video of it in action: