Raspberry Pi screensaver (feedback) + Pandora (pianobar) + AirPlay (rpiplay) kiosk

kiosk.sh

#!/bin/bash
# SPDX-License-Identifier: Unlicense
# Author: Derrick Lyndon Pallas <derrick@pallas.us>
#
# /etc/rc.local: xinit /usr/lib/kiosk.sh &
#
# http://rss-glx.sourceforge.net/
# https://github.com/PromyLOPh/pianobar
# https://github.com/FD-/RPiPlay

xset s off
xset -dpms
xset s noblank
modprobe snd_bcm2835 && aplay /usr/share/sounds/alsa/Noise.wav

while true ; do
	pidof pianobar && killall -SIGCONT pianobar || tmux new -d -s pianobar -- /bin/sh -c 'nice -n -10 aoss pianobar'
	pidof feedback && killall -SIGCONT feedback || ( nice -n -5 /usr/lib/xscreensaver/feedback --root & )
	timeout 1s killall -w -SIGTERM rpiplay || timeout 1s killall -w -SIGHUP rpiplay || killall -SIGKILL rpiplay || true
	vcgencmd cache_flush
	env \
		MALLOC_CONF=junk:true \
		LD_PRELOAD=/usr/lib/arm-linux-gnueabihf/libjemalloc.so.2 \
		DISPLAY=:0.0 \
	nice -n -15 rpiplay -n DerSpiegel -b auto -l 2>&1 | tee /dev/kmsg &
	while ! lsof -i -sTCP:ESTABLISHED | grep rpiplay >/dev/null ; do
		sleep 1
		for P in rpiplay pianobar feedback ; do
			pidof $P || continue 3
		done
	done
	# echo on 0 | cec-client RPI -s -d 1
	# echo ping | cec-client RPI -s -d 1
	# echo as | cec-client RPI -s -d 1
	killall -SIGSTOP pianobar feedback || true
	while lsof -i -sTCP:ESTABLISHED | grep rpiplay >/dev/null ; do sleep 1 ; done
	# echo is | cec-client RPI -s -d 1
done
#