I also learned that it is probably easier to buy another Raspberry Pi than try to emulate one for software testing. Silly me.
@david Some of life's best lessons are learned by us being silly.
I'm glad you reminded me about Raspberry Pis. I wanted to buy a bunch of Pi Zeros when they first came out to donate to some local schools but couldn't get them then. Looked another time and they still weren't available and I seem to have totally forgotten about them until now. Do you have many of them?