src/connectivity/combo_tool/6631_combo_tool/launcher.service

[Unit]
Description=66xx launcher Daemon
After=wmtd.service

[Service]
Type=simple
ExecStart=/usr/bin/wmt_launcher -p /lib/firmware > ttyS0
StandardOutput=tty
StandardError=tty

[Install]
Alias=launcherd
WantedBy=multi-user.target