Certainly, I've just shared this in another comment here:

https://news.ycombinator.com/item?id=36018291

The flow is pretty simple in Node Red - render the prompt from Home Assistant and pass it to Chat GPT. The response from Chat GPT is parsed and sent back to Home Assistant in some "Helper" variables known as "input_number" and "input_text".

Once the values are in Home Assistant, it's pretty easy to change the colours of lights in an automation.