How to set Haruna to play HDR videos?

Hi. I’m trying to set up Haruna to play HDR videos but I can’t get it to work.
I have created a file with this settings vo=gpu-next target-colorspace-hint gpu-api=vulkan gpu-context=waylandvk and added set include path/to/file to the custom commands page of Haruna settings however now when i open a video first it opens Haruna and then another window of mpv and plays the video in the latter, like this

Note I have already set ENABLE_HDR_WSI=1