Show HN: DuoBook turns URLs into level-adjusted bilingual stories (opens in new tab)

After I posted DuoBook on HN a few months ago, a CEO from Denmark gave me very honest feedback:

“Nice product, but coming up with a story is a mental effort. I’d rather read real news as short stories.”

That stuck with me, so I built URL grounding for stories.

Paste any URL → DuoBook turns it into a short, level-adjusted story in seconds.

Currently works best with:

  - Wikipedia
  - Non-paywalled news/articles
  - YouTube videos with captions

I also implemented most of the feedback I got from HN last time. Would love more feedback on what feels useful vs gimmicky.