Apple2e system disks/info?

I know someone who has an apple2e (and all the trimmings), but no disks. The thing still turns on, but doesn’t do anything (no disks).

Does anyone have any info on where to find/replicate the disks needed to run this? Is there a good source of info on how this machine used to work (boot disk orders, etc.)
it’s older than I am.

I read the wikipedia article on this stuff, and it wasn’t that helpful.