[Unit]
Description=xinit - user "rewoo"
[Service]
User=rewoo
Group=rewoo
ExecStart=/usr/bin/Xvfb :14 -nolisten tcp -screen 0 1024x768x24 -fbdir /var/tmp/
ExecStopPost=/usr/bin/killall -u rewoo Xvfb
[Install]
WantedBy=multi-user.target