Larisio POS | Offline-capable Cashier & Inventory System

Larisio POS: keeping the cashier workflow usable across web, Windows, Android, and unreliable connections.

The problem Small businesses need sales, stock, and outlet data to stay organized even when a device temporarily loses connectivity.

My solution I built a multi-tenant POS with locally queued sales and synchronization back to a central PostgreSQL database.

Key features • Product search and scanning, discounts, tax, and order types • Inventory, stock counts, suppliers, and purchasing workflows • Outlet transfers, customer records, and reporting • Responsive cashier layouts with a dedicated mobile cart • Windows delivery through Electron and Android through Capacitor

Engineering notes Offline data is scoped by user, business, and outlet. The gallery shows an unsubmitted example cart; available payment methods depend on outlet configuration.

Built with: React · TypeScript · Vite · Node.js · Express · PostgreSQL · Electron · Capacitor