This is Espressif's HA_color_dimmable_light adjusted to successfully link against Hue bridge, and function like a properly behaved light (mostly).

Mind you, you'll need to adjust the trust center link key (heed the FIXME in main/esp_zb_light.c).

Details in my Zigbee: Hue-llo world! blog post.

To compile:

./in-docker.sh idf.py set-target esp32-c6 build

To flash:

# pipx install esptool
cd build
esptool.py --chip esp32c6 -b 460800 \
  --before default_reset --after hard_reset \
  write_flash "@flash_args"

To clean up:

./in-docker.sh rm -rf build dependencies.lock managed_components/ sdkconfig

To change your board's MAC (or other ZB parameters):

./in-docker.sh python3 esp_zb_mfg_tool.py \
  --manufacturer_name Espressif --manufacturer_code 0x131B \
  --channel_mask 0x07FFF800 \
  --mac_address CAFEBEEF50C0FFA0
esptool.py write_flash 0x1d8000 ./bin/CAFEBEEF50C0FFA0.bin

Note: 0x1d8000 is the location of your zb_fct in partitions.csv. And the other possible parameters (for esp_zb_mfg_tool) can be figured out easily from its source.