Optional URI prefix

[Sjors]

Both Android and iOs are able to automatically open the right (or the wrong…) app when you scan a QR with the OS camera app.

At least with Apple, developers can register their app to use whatever prefix they want (afaik).

You could either pick one prefix, that's not already in use, like bbqr:. Alternatively pick one per data type, so it's less likely the wrong app is opened. Or completely leave it open for devs to fight over, but just allow it.

This is mainly useful for single codes, not so much when handling multiple "pages". This is because the first QR would open the app, after which the app will have to initiate scanning the next one, and a URI prefix isn't needed.