[Unit]
Description=KasmVNC
After=network.target

[Service]
Type=forking
Restart=always
RestartSec=5
ExecStartPre=-/usr/bin/vncserver -kill %i
ExecStart=/usr/bin/vncserver %i
ExecStop=/usr/bin/vncserver -kill %i

[Install]
WantedBy=default.target