How to autostart application with systemd

1.Create file /etc/systemd/qtdemo.service with following content:

[UNIT]
Description=Start Multitouch Qt Demo

[SERVICE]

[Install]
WantedBy=multi-user.target

2.Create file /lib/systemd/system/demo.service with following content:

[Unit]
After=multi-user.target
Description=start Qt demo

[Service]
Type=forking
RemainAfterExit=no
ExecStart=/lib/systemd/systemd-demo start
ExecStop=/lib/systemd/systemd-demo stop

[Install]
WantedBy=multi-user.target.wants

3. Create file /lib/systemd/systemd-demo with following content:

#!/bin/sh
# launch demo application
#
export QWS_MOUSE_PROTO=tslib:/dev/input/event1
export TSLIB_TSDEVICE=/dev/input/event1
DEMO_PATH=/usr/bin/qwt-6.0.1
DEMO_EXEC=oscilloscope
DEMO_OPTS=-qws

case "$1" in
        start)
                echo 0 > /sys/class/graphics/fbcon/cursor_blink
                echo 0 > /sys/class/graphics/fbr0/blank
                /bin/mount -o remount,rw /
                /usr/bin/ts_calibrate
                /bin/mount -o remount,ro /
                ${DEMO_PATH}/${DEMO_EXEC} ${DEMO_OPTS} &
                ;;
        stop)
                killall ${DEMO_EXEC}
                ;;
        *)
                echo "Usage: $0 {start|stop}"
                exit 1
                ;;
esac
exit 0

4. make /lib/systemd/systemd-demo executable.

5. create symlink demo.service in /etc/system/system/multi-user.target.wants that points to the file /lib/systemd/system/demo.service:

cd /etc/systemd/system/multi-user.target.wants/
ln -s /lib/systemd/system/demo.service demo.service