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```python
# AI Dev Tool: AGENTSmd AI-Native SaaS Template - Next.js Expo Monorepo Boilerplate
# Production Starter Boilerplate for Real-time SPAs with HTML over WebSockets

import os
import json
from typing import Dict, List
from fastapi import FastAPI, WebSocket
from fastapi.responses import HTMLResponse
from fastapi.staticfiles import StaticFiles
from pydantic import BaseModel
from supabase import create_client, Client

# Initialize Supabase client
SUPABASE_URL = os.environ.get("SUPABASE_URL")
SUPABASE_KEY = os.environ.get("SUPABASE_KEY")
supabase: Client = create_client(SUPABASE_URL, SUPABASE_KEY)

# Initialize Next.js Expo Monorepo Boilerplate
app = FastAPI()
app.mount("/static", StaticFiles(directory="static"), name="static")

# Define WebSocket connection handler
@app.websocket("/ws")
async def websocket_endpoint(websocket: WebSocket):
    """
    Handle WebSocket connections for real-time updates.
    
    :param websocket: WebSocket object
    :return: None
    """
    await websocket.accept()
    while True:
        data = await websocket.receive_text()
        # Handle incoming message
        await handle

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