The cards and the slider use useDraggable, which moves what it is given. Each slot is a useDropZone that accepts some tags: red and yellow are warm, green is cool, and the last slot takes both. While a card travels, the slots that take it show an outline (canDrop()), bright on the one under it (isOver()); anywhere else, snapBack sends it home. A full slot disables itself and opens again when its card leaves. Clicking a card without moving it still turns it over.
The slider is the same hook along x, inside the track, in steps of ten. The slingshot uses only the drag events through listen: the stone does not follow the pointer, and the pull aims the throw.