I built a Mac app for this project, using both versions of the PHP code that SiliconDust published. It works on Apple Silicon and Intel Macs alike. You can download it from here:
https://drive.google.com/drive/folders/ ... sp=sharing
The one labeled "v2" in the name is the one with the newer PHP; either should work, but if you're running into problems with the first DMG, uninstall it, download the v2 and install that one.
Since the app is signed by Apple, you shouldn't get any error message about installing an app from an unknown developer (let me know if you do). If you get a notification asking to approve the app's access to your network, approve it. I'm working on getting the code up on GitHub so it can be audited.
I have this running on my Mac and confirmed with @nickk that it does record and send the captures as needed.
After the EAS test on the 17th, and once the captures are sent to SiliconDust, you can nuke everything by pressing the icon in the menu bar and choosing "Uninstall."
EDIT: GitHub repo - https://github.com/HDSlugger/eacapture-mac