* update readme

README.md

@@ -1 +1,56 @@
-# P2P Poll App
+# Polly - P2P Poll App
+
+A lightweight, real-time collaborative polling application that uses Yjs and WebRTC to allow multiple users to create options, vote, and see live results without a centralized database or back-end server.
+
+### 🚀 Features
+
+- Real-time Collaboration: Instant synchronization of poll titles, options, and votes across all connected peers using CRDTs (Conflict-free Replicated Data Types).
+- P2P Connectivity: Uses WebRTC via y-webrtc for direct browser-to-browser communication.
+- Dynamic Voting: * Add new options on the fly.
+    - Live-updating progress bars and vote tallies.
+    - Automatic sorting of options by vote count.
+- Voting Deadline: A shared countdown timer (2 minutes) that locks the poll for all participants once expired.
+- Awareness & Presence: A status bar showing connection health and the number of active peers currently in the room.
+- Local Persistence: Uses y-indexeddb to save the poll state locally in your browser, ensuring data isn't lost if you refresh or lose connection.
+- No Setup Required: Unique "rooms" are created via URL parameters, making it easy to share a link and start a poll instantly.
+
+### 🛠 Tech Stack
+
+- Language: TypeScript
+- State Management: Yjs (Shared data types: Y.Doc, Y.Map, Y.Text)
+- Networking: y-webrtc (WebRTC provider for Yjs)
+- UI: Vanilla DOM manipulation (No heavy frameworks like React or Vue)
+
+### 💡 How It Works
+
+- Room Creation: When you open the app, it checks for a ?room= parameter. If none exists, it generates a unique ID and updates the URL.
+- State Synchronization: The y-webrtc provider connects users with the same room ID. Any change to sync.options or sync.votes is propagated to all users.
+- Local Reactivity: Components use .observe() and .observeDeep() on Yjs types to trigger a re-render of the UI whenever the shared state changes.
+- Voting: Votes are stored in a Y.Map<string> where the key is the User ID and the value is the Option ID. This ensures each user can only have one active vote at a time.
+
+You can simulate a second user by opening an incognito Tab.
+
+### 🔧 Installation, Development and Deployment
+
+- Install dependencies:
+
+    ```npm install yjs y-webrtc y-indexeddb```
+
+- Development:
+    
+    ```npm run dev```
+
+- Deployment:
+    - The code currently uses an Y-Webrtc-Signaling-Server at localhost that starts with `npm run dev` for development (PORT=4444 npx y-webrtc ).
+    - To deploy the App, you need to set up a publicly available signaling server and set the address in the `synx.ts`. E.g. with Docker:
+
+    ```version: '3.1'
+services:
+  y-webrtc-signaling:
+    container_name: y-webrtc-signaling
+    image: funnyzak/y-webrtc-signaling:latest
+    restart: always
+    network_mode: bridge
+    ports:
+      - "4444:4444"
+    dns: 8.8.8.8```

src/sync.ts

@@ -29,7 +29,7 @@ export function initSync(roomId: string): AppSync {
     : "offline";
 
   const provider = new WebrtcProvider(roomId, doc,{
-                signaling: ["ws://localhost:4444", "ws://lynxpi.ddns.net:4444"]
+                signaling: ["ws://localhost:4444"]
             });
   const persistence = new IndexeddbPersistence(roomId, doc);