How to put an app on Appstore without iPhone and iMac?

Question

Apple App Store

There is an application that is already ready, developed by freelancers and given to us on a flash drive.
How to publish an application on the Appstore without an iPhone and iMac?

Answer 1

Option 1. Rent a poppy online
Option 2. Ask the freelancers themselves who made the application. I so once asked an Indian on an upwork
Option 3. Virtual machine
and without a poppy at all - in any way.