It of course starts with a 3d model. Then I cut several Luan boards to the size and grain direction I wanted them. I made templates out of dense particle board for routing identical rounds in each piece.
I added ogees to each shelf and stained them gunstock.
The shelves are simple glued butt joints.
The whole thing is mounted by three hidden bolts and plugs. Given the narrowness of the joints the shelves are only suitable for light items like pajamas and socks.