Nice work, but I feel like it's not required to use AWS for this. There are small hosting companies with specialized servers (50gbit shared medium for under 10$), you could probably do this under 100$ with some optimization.

For whatever reason, apps need to request the microphone permission first to show up in the settings menu. For other permissions you can drag/drop the application into the settings window, but not for the microphone permission.

The bug with the outlined windows really threw me back a decade. It's exactly how a bad KDE MacOS rice looked back then lol

I did try that amongst other things. Launching Ableton via Terminal also brought up the microphone permission pop-up...for the Terminal app. One has to wonder if a System that regularly "forgets" permissions is even secure at all.