Bluetooth keyboard
This article describes how to set up a Bluetooth HID keyboard with Arch Linux, bluez version 5.
Start bluetooth service and do
$ bluetoothctl -a # pair <XX:XX:XX:XX:XX:XX> # trust <XX:XX:XX:XX:XX:XX> # connect <XX:XX:XX:XX:XX:XX>
device should be added as /dev/input/event* and your Xorg should add it automatically if you did not disable such feature.
Bluetooth Keyboard at Startup
TBD