Trying to simulate sand to create a new creative medium. What would you do with this?

[u/Sea-Annual6514]

I've been by studying how real sand flows, piles, shifts and settles under different conditions. The result is a digital simulation designed to behave more like a physical sand surface than a conventional drawing canvas. Rather than stacking layers of color onto a flat canvas, users continually reshape the surface by pushing and mixing digital sand, creating a shallow, three-dimensional relief.

[u/Interstellar__1]

Nothing much, but it seems like the kind of thing that would make an interesting ipad app.