Re: Apple III developers - Was there ever such a thing?

[A2Aviator <a2aviator@gmail.com>]

Your card size can not be larger than the Apple Mouse // card - which
is that large because it was also designed for the /// as well as the ]
[.

I have the SOS Driver Reference Manuals, Device Driver guides, etc.
Perhaps I can scan them if they are not available somewhere. I also
have SDK (Shrinkit Disk) images of quite a bit of /// stuff.

The other thing is, basically in a nutshell- nothing boots but the
floppy drive. You have to use the SCP (system configuration program)
to add your driver to the boot volume. The boot block on a properly,
old school formatted ProDOS disk will contain ProDOS boot code on
block $00 for the A2 and block $01 for the A3.

The internal floppy boots and then you can access any other volume you
have a device driver loaded for.