Reboot. Install official Arch Linux packages bluez and bluez-utils, and enable and start bluetooth.service (systemctl enable bluetooth.service, systemctl start bluetooth.service) Test with bluetoothctl. AUR package bluez-utils-compat is no longer necessary for the Pi specifically. It can still be installed, though.
– systemctl is-failed bluetooth ... [email protected] [email protected] Symlinks replace lines of conditional code in SysVinit scripts.