maybe adding a floor to each and every building could be cool?

This problem has actually been bothering me for over an year. See, the buildings actually have floors, even 4-5 blocks deep, it's just that the sand falls down.. and I don't want them to do like vanilla villages where they keep adding blocks till they find a solid one. I think I'll just make the sand into a non falling block and be done with it.

maybe just making the structure generate sand cube under it until it touch the ground, i know a friend has done this with mcreator for not having flying trees, so doing a so should fix this

if you want a suggestion that will 100% fix this issue easily, adding stars to enter them so it go on a floor (like in vanilla villages) :)

Just released v0.2, in the end I just decided to make Dark Sand a non falling block. Easiest way to go about it, and fixed all issues.