Libre 2 panic led me to finding this thread, and learning about Shuggah. Downloaded and got it to work, but even better, got it on my Apple Watch - put it as one of the complications so a simple tap on the screen shows me my blood glucose. Also used the Shuggah settings to allow BG to be shown in the badge on the app icon. So that one day panic with the Libre app has let me to a much more user-friendly solution which should lead to better diabetic control.
The only downside of all this is that the data will no longer be fed to Libre View. Is there any workaround for this?