If the OP isn’t doing that, there’s your answer
Edit: I see the desire to use Rouvy in parallel. Depending on your setup you could use power matching via Bluetooth for Xert, and connect the powermeter via ANT+ for Rouvy (if it’s a laptop with a dongle), or use North Pole CABLE device to convert the ANT+ signal to another Bluetooth channel eg if it’s an iPad or AppleTV.