Video POC
The camp viewer playing these lessons with video in place of GIFs. Video keeps today's PNG overlays; Final also switches overlays to lossless WebP (pixel-identical). Sizes are the full lesson: manifest, overlays and animations.
Moon Explorer's Handcart Part 1
Current: 443 MB → Video: 29 MB → Final: 23 MB
Mechanical Scene Part 2 – Linear Motion
Current: 753 MB → Video: 44 MB → Final: 37 MB
Animal Bot Part 1 – Head
Current: 588 MB → Video: 40 MB → Final: 34 MB