First of all, welcome to the Homey Community!
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If you have the hardware and can setup an Zigbee2MQTT environment, you can the use the Zigbee2MQTT App for Homey | Homey to bring the zigbee devices to Homey.
The app has just recently been extended to support those custom payloads to be sent to a device.
Or you could try your luck with Tuya Zigbee App for Homey | Homey if the device is supported with it. there is Christmas Lights device that has a card to start en effect on string lights.
