... felt the same white screen, some text and maybe a night mode if I was lucky. There was no atmosphere . No sense of being somewhere. I kept thinking about how different it feels to read in a calm beach versus at a cluttered desk. The environment shapes the experience even if the words are the same. So I built an app that lets you create that environment, digitally. What Leaf & Spine does differently Most reading apps treat the shelf ... ... boring list. We render it as an actual 2.5D bookshelf