POSRestaurantOffline-firstPWA Live

WTFPOS

Offline-first restaurant POS with QR self-ordering, a live kitchen display, floor plan editor, and multi-location inventory. Built for a real BBQ restaurant chain with Svelte 5 and RxDB.

Built with Svelte 5SvelteKitTypeScriptRxDBDexieTailwindCSSBits UI

What it does

Key Features

Floor plan editor

WYSIWYG drag-and-drop canvas to design the restaurant layout. Tables, chairs, walls, labels, and entrances — all configurable with rotation and capacity settings.

QR self-ordering

Guests scan a QR code at their table, browse the menu on their phone, and submit orders directly. Orders sync live to the POS. Dynamic pricing tiers by group size.

Kitchen Display System

Real-time ticket view per station with live cooking timers, urgency levels, and one-tap item completion. Separate dine-in vs. takeout workflows.

Table operations

Merge tables, transfer orders, split bills, void items with PIN authorization, and track elapsed time per table.

Inventory

Real-time stock deduction per order. Delivery logging, waste tracking, periodic stock counts, and variance reports. Multi-protein tracking (beef, pork, chicken, seafood).

Multi-location

All features support multiple branches with a consolidated KPI dashboard.

PWA

Installable on Android/iOS for tablet use at the counter.

Case Study

About the project

Full-stack point-of-sale system built for a BBQ restaurant chain. Handles the full service lifecycle — from guests scanning a QR code at the table to kitchen tickets to billing.

Architecture: Offline-first using RxDB (reactive local database backed by IndexedDB). The POS works without internet and syncs via Server-Sent Events when back online. 117 Svelte components built with Svelte 5's new $state reactivity.