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```python
# AI Dev Tool: FastAPI Pydantic v2 Micro-SaaS Boilerplate with Supabase Integration
# Description: A production-ready starter boilerplate for building micro-SaaS applications with FastAPI, Pydantic v2, and Supabase.

from fastapi import FastAPI, Depends, HTTPException
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
from pydantic import BaseModel
from supabase import create_client, Client
from typing import Optional

# Initialize FastAPI application
app = FastAPI()

# Initialize Supabase client
supabase_url = "https://your-supabase-instance.supabase.co"
supabase_key = "your-supabase-key"
supabase: Client = create_client(supabase_url, supabase_key)

# Define authentication scheme
security = HTTPBearer()

# Define user model
class User(BaseModel):
    id: int
    email: str
    password: str

# Define authentication dependency
async def get_current_user(credentials: HTTPAuthorizationCredentials = Depends(security)):
    token = credentials.credentials
    user = await supabase.auth.api.getUser(token)
    if not user:
        raise HTTPException(status_code=401, detail="Invalid token")
    return user

# Define route for

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