Comprehensive Inventory System with QR Code Integration

I need a web-based inventory system featuring a complete dashboard, user management, and a dedicated QR code scanner page. The application should be built with:

- Frontend: HTML and JavaScript (either vanilla or a framework)
- Backend: Node.js with Express
- Database: MySQL (MariaDB)

The graphical interface should include:

- A dashboard overview
- An inventory management section
- A user management interface
- A QR code scanner page

The QR code scanner page should facilitate:

- Adding new items
- Updating existing items
- Removing items
- Removing customers
- Adding customers

In addition to generating and processing QR codes, the system should also enable:

- Scanning items for checkout
- Tracking item movement
- Batch processing QR codes
- Generating QR codes
- Scanning parcels

Ideal candidates for this project should have extensive experience with web app development, particularly with the specified technologies. Familiarity with QR code libraries and inventory systems will be a significant advantage. Please note that this application needs to be hosted locally with a user-friendly graphical interface.