Next.js E-commerce Site Setup

I need a freelancer to take my existing Next.js source code and deploy it as a live e-commerce website. Additionally, I need you to create a mobile app for the site.

Key Requirements:
- E-commerce functionality including:
- Product listings and catalog
- Shopping cart and checkout
- User accounts and login

Ideal Skills and Experience:
- Proficiency in Next.js
- Experience with e-commerce site development
- Familiarity with app creation for e-commerce platforms
- Knowledge of deploying Next.js applications