Ads Support With New PlayerSurface? (androidx.media3.ui.compose)

Hi there - I've searched StackOverflow and other issues in this repo, but don't see any docs or questions pertaining to this.

I am beginning to use your new Compose library with the PlayerSurface and remembered buttons states - they are awesome, thank you for all the hard work.

I would like to use ads with this new approach but am not sure how that would work, or if it's even possible yet:

The Ad Insertion documentation states that you must set up a media source factory configured for ad insertion. But this requires a reference to the AdViewProvider, which I no longer have because I'm passing that responsibility off to Compose to create - my logic code no longer has any reference to the views because of the cool new Compose stuff. I suppose I can create an empty view group in my VM then emit to my Compose view containing the new PlayerSurface and place that on top...but I am wondering if there is a more elegant or preferred way of setting up ads - whether it be a different way of creating the media source factory or, if that stays the same, creating a ViewGroup to work with the new PlayerView.

I suppose I'll tack on a question about a media3.ui.compose Slider state - is that in the works, by any chance? I read that it might be in a forum, I believe.

Thanks for your time.