1-Day Hackathon
What if…?
Upload a chat export and simulate the parallel universe of "what if I'd said this instead" — built in one day at Cursor Hackathon Seoul.
PersonalDuration 0.2wContribution 100%2026-06 → 2026-06
Engineering Role
FrontendAI/ML
Overview
A web app that parses a KakaoTalk chat export, finds the moment a relationship went sideways, and simulates alternate timelines with an LLM. Privacy-first: raw conversations never leave the browser (IndexedDB); only the chunks needed for analysis go through the LLM proxy.
Timeline
2026-06 → 2026-06
Role: Solo build
Contribution: 100%
Collaboration: Personal
Tech Stack
</>Next.js 16 · Three.js · OpenRouter · local-first
Next.js 16React 19TypeScriptThree.jsTailwind CSS 4OpenRouterIndexedDB