update: I got relay #1 on working using the parent driver.
been reading some more about these Tuya private cluster EF00 on newer TS0601 devices. Seems like this cluster is really designed to be an MQTT tunnel to the Tuya cloud. Not a fan of cloud based IoT. So it seems that my best approach might be to setup a local zigbee2MQTT and try to do this all locally on a raspberry Pi with a USB to Zigbee dongle. Am I right?
Alex, it may be a good idea if you start your own thread dedicated to this particular device, and we can continue there.
We continue the conversation for TS0601 _TZE204_dqolcpcp device support in Hubitat here :