Don't rewatch. Train.
Any YouTube tutorial → a course with checkpoints and a boss-fight in 60 seconds. AI asks the right questions — get it wrong, and it rewinds you to the exact spot.
Not a player. A trainer.
The video asks the questions
Chapters get cut automatically. The player pauses itself — you don't.
Six ways to ask
Quiz, flashcards, retell, drawing, diagram, predict-the-next-part.
Rewind to the eureka moment
AI finds the exact 30-second segment instead of saying "watch it again".
Chapters unlock like a map
Weak answers hide what's next, strong ones unlock an insider take.
Per-concept progress
Not "53% of the course" — "useEffect — 30%, useMemo — 80%".
Final code in the browser
Write your solution in Sandpack, Jest checks it — no pass without it.
Three steps from link to course
- 01
Paste a link
YouTube, Vimeo, direct .mp4. Captions or not — Whisper picks up videos up to 140 min.
- 02
AI builds the course in 60s
Chapters, varied checkpoints, secret branches, final coding boss-fight.
- 03
Learn and see your gaps
Player pauses on questions. Wrong → rewind. Health bar shows where you're weak.
Ready to learn the way they should've taught from day one?
Hop on the early-access list — updates every couple of weeks and priority launch keys.
