After installing the plugin and launching Front, do the following on the main terminal:
Log in using personal PIN
Select Add-ons and then Waiter: QR.
Wait a few seconds until a window appears with a QR code for connecting the app.
If there is no Waiter: QR item in the Add-ons list, then the plugin has not started and you should contact the support service.
Connection to Front
You can connect to Front in two ways, of your choice:
Scan QR code from Front
Enter connection settings manually