RGBW Restore mode for LibreTiny?

I have a beken based RGBW strip and I’m wondering how to restore the light to it’s previous state and colour after a power cycle or reboot?
I see some stuff in the docs but it seems to be related to ESP8266 and writing the state to flash?

This is my basic light so far…

light:
  - platform: rgbw
    id: light_rgbw
    name: "${friendly_name} Light"
    red: output_red
    green: output_green
    blue: output_blue
    white: output_cold