Kiosk Software – Simple Roulette + QR Code Generation (SDK Integration) Description: I have a vending machine with a touchscreen and a working SDK provided by the manufacturer. The machine is already fully functional. I DO NOT need to build a system from scratch. I only need to ADD a new feature to the existing interface. Objective: Add a new option/button on the screen that: 1. Opens a simple roulette (spin wheel UI) 2. User spins the wheel 3. Based on the result, the system generates and displays a QR code on the screen Important: • No need for backend (for now) • QR codes can be predefined or generated locally • No need to dispense physical products in this feature • This is a kiosk/touchscreen interface Requirements: • Experience with kiosk software / embedded systems / Android (if applicable) • Ability to work with external SDK • Clean and simple UI (nothing complex) Deliverables: • Working roulette interface • QR generation based on result • Integration with existing system using SDK Bonus (optional): • Ability to modify rewards easily in the future