Margin
A study tool that takes your PDFs, breaks them into knowledge cards and writes quizzes from them, then shows what you still miss.
- Year
- 2026
- Role
- Solo
- Type
- Tool
- Built with
- TanStack Start, Convex, Clerk, Anthropic
Private while I rework it.
What I built
- Notebooks of source PDFs, preprocessed into knowledge cards.
- Quiz generation with the Anthropic SDK, tuned to spend as few tokens as possible.
- Results and analytics per notebook.