I need a web-based POS that my café staff can open in any up-to-date browser on Windows or MacOS. The system must recognise three permission levels—master, admin and manager—and log every session so I can later track who changed prices, edited the menu or closed a bill. Core workflow • Log-in screen routes users to their appropriate dashboard. • The master dashboard shows real-time audit trails of both admin and manager activity, plus simple filters to drill into “menu edits”, “billing adjustments” and “login history”. Menu management requirements • Add, edit or remove menu items on the fly. • Group those items into categories (e.g., Drinks, Pastries, Specials). • Adjust prices instantly while maintaining a change log. Billing • Fast item search, quantity modifiers, discounts and tax handling. • Printable or e-receipts. • Daily sales summary exportable as CSV or PDF. Look and feel I want a clean, modern interface—flat colours, intuitive icons, touch-friendly buttons—so new staff can learn it in minutes. Tech & delivery The exact stack is up to you; something widely supported such as React + Node, Vue + Laravel or an equivalent would be ideal, provided it’s well-documented and secure. Please include: 1. Full source code with install instructions. 2. A short deployment guide for a typical shared or VPS environment. 3. A brief hand-off session or annotated video so my team can perform routine maintenance. If you have relevant demos, send a link or screens. I’m ready to start as soon as I find the right fit and I appreciate clear milestones and realistic timeframes.