How it works
Observer.create({type: "wheel,touch,pointer"}) with a busy flag; each slide change is a timeline with SplitText char reveal.
Observer Fullscreen Slides
Wheel, touch and keys step through full-screen slides with one normalised gesture API.
sketchGSAPObserverSplitText
Performance
Only two slides are visible at a time; others are visibility:hidden.
Accessibility & reduced motion
Arrow keys and buttons work too; slide region is aria-live.
Export
transition={{ duration: 1.1, ease: [0.76, 0, 0.24, 1] }}