This project is a web-based collaborative Markdown editor that allows multiple users to write and edit the same document in real time. It combines the power of Yjs for conflict-free collaborative editing, WebRTC for peer-to-peer communication, and Firebase for authentication and persistent storage.

The goal is to provide a smooth and modern writing experience for teams, students, or individuals who want to co-author notes, articles, or any kind of Markdown content without relying on centralized editors like Google Docs or Notion.

• Live Collaboration: Users can write together in real time, with changes appearing instantly across all connected clients.
• Markdown Support: The editor supports standard Markdown syntax, allowing rich text formatting using a lightweight markup language.
• Peer-to-Peer Syncing: Thanks to WebRTC and Yjs, updates are shared directly between clients, reducing latency and server load.
• Firebase Integration: Firebase is used for user authentication and storing documents in Firestore when persistence is needed.
• Presence Awareness: The app can show who is currently online and collaborating in the same document.
• Link-Based Sharing: Each document has a unique URL that can be shared with collaborators for easy access.

The app initializes a Yjs document for each session. Clients connect using WebRTC to exchange updates directly, and optionally sync to Firebase for backup and long-term access. A Markdown parser renders a live preview of the content as it's being written. Firebase Auth secures document access and links sessions to user accounts.

No server-side logic is required beyond Firebase, making deployment and scaling easier. All collaboration happens in the browser.

• Writing technical documentation as a team
• Taking shared notes during meetings or classes
• Real-time interview or assessment environments
• Lightweight alternative to Google Docs for Markdown content

• Yjs: For CRDT-based collaborative editing
• WebRTC: Enables direct peer-to-peer communication
• Firebase Auth & Firestore: For login and persistence
• JavaScript: Core application logic
• Markdown-it or similar parser: To render live previews

To use or contribute to the project, clone the repository, install dependencies, and launch the dev server. A Firebase project is required if you want persistence and auth, but the app can also run in a purely peer-to-peer mode.

This project is open-source and available under the MIT license. Feel free to fork, modify, and use it in your own projects.