Make explainer videos for any article on the fly
Scrimba plugged an LLM into its interactive video format and built HN.watch, which generates explainer videos for HN posts.
Generate a video course with games on any topic
Keet generates Duolingo-style courses on any topic, with short explainer videos, quizzes and a roadmap.
- Difficulty
- BeginnerOur rating
- Time to build
- Not reportedOur estimate
- Monthly cost
- Not reported
- Revenue
- Not reportedWe only show revenue the source states
- Engagement
- 48 HN points48 comments · fetched Oct 15, 2026
What they did
Pick a topic; the app builds a curriculum with lessons, videos and games.
How it went
Launched on HN (YC S24); iOS app.
Worth knowing
This is the builder launching their own product on HN. Check facts on niche topics.
Builder recipe
Our own starting point, written from the source. Adapt it to your setup.
Stack
- Keet
Steps
- Pick one concept to learn or teach.
- Have the agent build or explain it step by step.
- Test your understanding by changing parameters or asking why.
- Iterate.
Starter prompt
Tags
Read the original
- Hacker News: news.ycombinator.com/item?id=49259309 ↗ (opens in new tab) Aug 11, 2026 · 48 points, 48 comments (fetched 2026-10-15)
- Web: www.trykeet.com/ ↗ (opens in new tab) Aug 11, 2026
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