remote keyboard on LibreELEC from another linux box

gistfile1.txt

#
# NOTE: make sure to update the device paths on both scripts
#

#
# server - run this on LibreELEC via /storage/.config/autostart.sh
#

#!/bin/sh

EV_DEV="/dev/input/by-id/usb-Microsoft_Wired_Keyboard_400-event-kbd"
AUTH_DEV="/sys/bus/usb/devices/1-1.4/authorized"
DELAY="1s"

while true; do
	# reset the device
	echo 0 > "${AUTH_DEV}"
	sleep "${DELAY}"
	echo 1 > "${AUTH_DEV}"
	sleep "${DELAY}"

	# poor man's keepalive - force nc to close the connection after a client is gone
	# by having tee output whatever it has received back to nc while sending it
	# to the evdev device at the same time
	nc -l -p 1337 -e tee -a "${EV_DEV}"
	sleep "${DELAY}"
done

#
# client - run this on your machine
#
#!/bin/sh

EV_DEV="/dev/input/by-id/usb-04d9_USB_Keyboard-event-kbd"
TARGET_HOST="192.168.88.231"
TARGET_PORT="1337"
DELAY="1s"

while true; do
	nc "${TARGET_HOST}" "${TARGET_PORT}" < "${EV_DEV}" 2>&1 1>/dev/null
	echo "Connecting.."
	sleep "${DELAY}"
done