As with any of these models, use Euler or Euler A samplers. Comfy user should use ModelSamplingDiscrete and set it to v-prediction. I'll add more info here as I continue to research but for now, resources.
You can find CSV files filled with tags the model understands here. Both danbooru and e621. Which... just means prompting like you would an Illustrious model.
ComfyUI users can use the example workflow here. Just drag the image into comfy to open the workflow.
Description
Use V-Pred.