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Checkpoint

We've all been there: lying in bed at night, eyes closed, but unable to sleep because our brains are replaying past mistakes—moments where we failed to fight back against verbal attacks, wishing for a chance to go back a

Core trick

Turns a user's described conflict into an 8-bit scene with Nano Banana, letting them replay it with alternate dialogue choices.

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Description

We've all been there: lying in bed at night, eyes closed, but unable to sleep because our brains are replaying past mistakes—moments where we failed to fight back against verbal attacks, wishing for a chance to go back and fix it. Checkpoint was created to realize this fantasy. By simply telling your story to Gemini 3, our prototype uses Nano Banana to instantly generate a personalized 8-bit game scene and dialogue. It allows you to travel back to that specific moment, re-experience the conflict, and simulate different endings. Underlying this simple interaction is the principle of CBT (Cognitive Behavioral Therapy), specifically 'Imagery Rescripting.' By actively choosing new, healthier responses in a safe simulation, users can break the cycle of regret and gain closure."
qyd0801/Checkpoint★ 00 forksHTMLCreated Dec 13, 2025 · last push Dec 13, 2025

README excerpt

This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).

## Getting Started

First, run the development server:

```bash
npm run dev
# or
yarn dev
# or
pnpm dev
# or
bun dev
```

Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.

You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.

This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.

## Learn More

To learn more about Next.js, take a look at the following resources:

- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.

You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome!

## Deploy on Vercel

The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.

Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.

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