In this video I show you how to connect your iMac as a screen/monitor to your new M1-M2-M3 MacStudio, MacMini etc using Luna Display. This specifically covers the requirements for operating it in Headless mode, but it also covers how the connections work for normal Luna Display 2nd screen operations.
If you've watched the video, you'll see I don't really advocate using an iMac in Headless mode, it's actually easier to use an iPad in this mode, as re-starting is simply the press of the button on such a device, whereas you'll commonly need both Mouse & Keyboard to reawaken or reboot the iMac.

00:00 Introduction
04:06 Headless Mode Webpage
05:36 Set-up requirements
07:19 Main Mac Set-up
12:00 Example & advice
14:05 Example working
15:30 Luna Display settings
17:20 Wrap Up

Purchase and Download Luna Display use this link:
https://bit.ly/PhilsLunaDisplay

All of my video recordings are made on Mac using Ecamm Live as seen in this video. To trial Ecamm Live use this link:
https://bit.ly/Ecammdeal