BillO - Instant Billing System

• Tech Stack: Python 3.7+, pyTelegramBotAPI (async), MySQL 8.0
• GitHub URL: Repository Link

BillO is a Telegram-based retail management solution that handles real-time billing, inventory, customer tracking, and sales reporting — all from a chat interface.

Built using Python and integrated with a MySQL backend, BillO supports quick customer billing, stock tracking with alerts, and generation of receipts and reports in printable formats.

• Billing System – create multi-item bills, apply discounts, track history
• Inventory Management – real-time updates, bulk imports, low-stock alerts
• Customer Management – maintain customer profiles and loyalty tracking
• Reporting Tools – analyze sales, inventory, and customer data
• Telegram Bot Interface – all operations via an interactive Telegram chat menu

Ideal for small-to-medium retailers looking to modernize operations with minimal hardware. The modular structure allows easy customization and future feature expansion like PDF invoices, multi-user support, and online payment integration.