Project Title: Android Lottery App for Smartphones & Smart POS Terminals Project Description: I am looking for an experienced developer to create a professional Android application dedicated to Lottery sales (Bolèt). The app must be compatible with standard Android smartphones and specialized Smart POS terminals (such as MobiIoT, Sunmi, etc.). Key Features: Secure Agent Login: A simple and secure authentication system for merchants. Lottery Sales Interface: Optimized UI for fast entry of numbers for various draws: Bolèt, Loto 3, Loto 4, Loto 5, and Maryaj. Multiple draw options (New York, Florida, Georgia, etc.). Special features: "Auto-pick" and "Pointe" (00, 10, 20...). Universal Printer Integration: * Support for built-in thermal printers on Smart POS devices using their specific SDKs. Support for external Bluetooth thermal printers for users on standard smartphones. Real-time Backend: Full integration with Firebase (Firestore) to track sales, manage tickets, and store data in the cloud. Ticket Management: * Generation of tickets with unique IDs and QR codes. Ability to check winning tickets and cancel tickets within a specific timeframe. Daily Reports: A summary for the agent to see total sales and commissions for the day. Technical Requirements: Proficient in Android Studio (Kotlin or Java). Experience with Firebase (Authentication, Firestore, Cloud Functions). Expertise in Thermal Printer integration (ESC/POS) and POS SDKs. Ability to design a clean, user-friendly interface for fast-paced environments. Deliverables: Complete Source Code. Fully functional APK.