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032025AI flashcards · Spaced repetition
Kortex
Next.js app that ingests PDFs and generates spaced-repetition flashcards with Google Gemini — SM-2 scheduling, learn/practice flows, streaks, and a social feed. Neon Postgres, serverless on Netlify.
Detail
Next.js 14 app that ingests PDFs, extracts content with `pdf-parse`, and generates spaced-repetition flashcards using Google Gemini — scheduled with SM-2, the same algorithm Anki uses.
Originally built on a server-side SQLite file; migrated to Neon serverless Postgres (dedicated schema, HTTP driver) to run fully serverless on Netlify. Card quality reviewed with a companion prompt eval loop.
Stack
- Next.js
- TypeScript
- Neon Postgres
- Google Gemini
- Zod
- Netlify