[Milhouse]

@Milhouse. Is it by design that the FireTV Stick remote behaves differently with the NUC and the RasPi3 (builtin Bluetooth)? With the NUC, after pairing I can modify the keyboard.xml file to change the behavior of the remote. I have access to long press etc. However there is nothing with the RasPi 3. Is there something I am missing?

Thanks for your hard work,
LongMan

There's no intentional difference. The debug logs from both NUC and RPi3 when the custom keymap is in use might shed some light.