Hi there,
What is the dev environment, MAC, Linux, PC ?
IDE ? Arduino, E-IDF, VS_Code, etc…etc…
I see a few for the ESP_IDF 5.1.1
Here’s a getting started from the Robot$ man.
HTH
GL 
PJ
oh" G_man comes through again, There’s this
it’s under the examples in the Arduino IDE also Examples\ESP32|zigbee 
I suggest starting with the Light bulb test first on the C6 , use a HA of your choice to send the CMD.
be sure to select Zigbee mode in the tools menu…
and change the RGB to LED among other things…