Thank you for your response. It would be a lot of work I think to support a demo account. The app on iOS was approved here: https://apps.apple.com/app/pirates-go-sailin/id6621200492 I have not requested a 30 minute review expert meeting yet.

I use Firebase UI Auth login. Would making an Anonymous login option work for Apple?

Will I be rejected if I let users ssh into their own macs to run command line programs. I just got this in an email. Is that relevant to letting users ssh into their own box? Where do we go to get permission from apple? Is that before or after app store review? "4.7.2: Clarifies that apps offering software not embedded in the binary may not extend or expose native platform APIs or technologies to the software without prior permission from Apple."

Thank you for the help. I have posted my question here: https://developer.apple.com/forums/thread/807395