

iOS does have an API for apps to record the screen throughout the OS these days through Broadcast Extensions, but it has to be user-initiated through the control center screen recording toggle (where they then get to pick what app to record the screen to instead of just saving as a video), it wouldn’t do that people think the T-Mobile app is doing
I picked up a used 2018 Fujitsu office PC with an i5-7500 for $60 (from a physical recycle shop, with a 14 day warranty) and it draws 15W idle. Way better value than a Pi (once you’ve added case, cooling, PSU etc) for running home server stuff.
A Pi still kills for “Arduino plus plus” use cases where you need the size, GPIO or can optimize the heck out of power usage on a battery.