@cwebber I once talked with someone who had set up a Signal account while trying not to use any Android or iOS devices. I believe part of what they did was use some emulation, including the Android SDK. There's a step where one has to scan a QR code. To get around that: the SDK includes a sandbox for testing camera functionality, and lets the user "walk" around a little "room" -- and you can put specific images on the "wallpaper".