syukursyakir

Sorry, am a bit new to hacker news so I didn;t even know that was a thing. Will try to do so now!

Would appreciate all feedback! <3

Hey HN,

  I posted Book2Course here ( https://news.ycombinator.com/item?id=46932010 ) a couple of weeks ago and got some valuable feedback. The main criticisms were that the course output felt template-like, quizzes were too surface-level, and the content lacked depth.

  I went back and rebuilt most of the generation pipeline. Here's what changed:

  What's new in V2:
  - Step-by-step lessons instead of walls of text — you click through sections, can't just scroll past
  - Inline comprehension checks mid-lesson (compulsory — you have to answer to continue)
  - Quiz explanations that tell you WHY you're wrong, not just "incorrect"
  - Spaced repetition flashcards auto-generated per chapter (exportable to Anki)
  - Practice mode: generate fresh AI questions across any chapters at any difficulty
  - AI Tutor grounded in YOUR book — highlight any text and ask about it
  - Page references so every concept traces back to the source
  - Chapter selection — pick the chapters you need, skip the rest
  - Knowledge map showing how concepts connect
  - Difficulty verification: a second AI pass checks that question difficulty ratings are accurate

  What it's NOT: a summarizer. If your book spends 10 pages on recursion, the course reflects that depth. The lessons stay faithful to the source material.        

  Tech stack: Next.js, FastAPI, Supabase, OpenRouter for AI generation. Processing a 300-page book takes ~3 minutes.

  Free tier: 1 book + 3 notes/month. No credit card needed.

  https://book2course.com

  I'd especially love feedback on course quality — that's where I focused most of the rebuild. Try it with a textbook you know well so you can judge the output. I will read every comment and look at EVERY feedback! Yes and we have launched on Product Hunt! I am so excited!

How it works: ( because why not )

User uploads book: Book is scanned by AI and undergoes step by step processing, each step has an API call. Result is the course.

This is the simplified version of the pipeline

Thank you so much! I really appreciate the support :DD Yea the website admittedly does look AI generated and not so unique. Will have to change in the next update! Now just in beta stage.

Fair concern. Book2Course doesn’t redistribute textbooks or make them public — users upload material they already have access to, and the output is for private study, similar to notes or summaries. That said, I’m being careful about this and staying within fair use boundaries.