# godforsaken ancient 2012vish systemd can't do it better, so we do it hack-style by xx@@!!-force
# cat /lib/systemd/system/quantron-goodbye.service 
[Unit]
Description=Say Goodbye to user at Shutdown
RequiresMountsFor=/home
After=multi-user.target

[Service]
ExecStart=/bin/true
ExecStop=/sbin/fbsplash -s /home/testpics/dspl_test1.ppm
Type=oneshot
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target