In order to view the cameras from the PC / MAC, it is not necessary to install any software since access is through the browser (Microsoft Edge / Google Chrome / Firefox / Safari)
To do this you must access the following link IPC Terminal (ismartlife.me)
https://protect-eu.ismartlife.me/login
This web page will appear.
The European server must be selected.
As you can see, a QR code is displayed, which must be read with the TUYA APP installed on the cell phone.
Open the TUYA APP and scan the QR code
Click on the button + > Read QR code > "Confirm login"
With these steps you will already have access to the TUYA app and you will be able to access cameras configured in your account.