debuff.dev

A small real-time pair-programming app for coding challenges.

Create a room, share the code, and solve problems together with a synced editor and built-in Python runtime.

Features

• Real-time collaborative code editor with shared cursors and presence
• Private room links/codes for quick pair sessions
• Built-in Python execution in a shared terminal workflow
• Problem picker for challenge-based practice
• Optional challenge modes (for example blind coding constraints)
• Shared timer flow for timed rounds
• In-app onboarding tour plus configurable editor/theme settings

Run locally

npm install
npm run dev

Then open the local URL shown by Vite.

Scripts

npm run dev      # start local dev server
npm run build    # production build
npm run preview  # preview production build
npm run check    # Svelte/TypeScript checks