I got nearly everything running quite quickly: WoAD on Android 13 smartphone, through WLAN to Windows 11 computer in the shack. VARA is connected to WoAD and sends audio through USB to IC-705. PTT works, too.
But I see no way to set the RMS QRG from WoAD: I downloaded the RMS list, selected one and WoAD knows the QRG. VARA activates PTT through CAT but does not touch the QRG the TRX came with.