Back to All SystemsCashiers, Operators & Shop Owners
Case Study — 2026
Laundry POS
Commercial Deployment & Client
Commercial Laundromat Hubs
Key Operational Impact
Replaced paper receipt books with 2-second thermal QR receipts and automated end-of-day revenue reconciliation.
Technology Stack & Libraries
Next.jsReactFirebaseTailwind CSSjsPDF
Executive Overview
A Point of Sale (POS) and operations management SaaS engineered for commercial laundromats. Features real-time multi-device order queues, dynamic QR claim tickets, customer CRM, and end-of-day revenue reconciliation.
The Operational Problem
Commercial laundry shops struggled with lost paper claim tickets, untracked unpaid balances, and manual end-of-day cash reconciliation.
The Engineered Solution
Built a high-speed touch POS with real-time Firebase order sync, instant thermal & PDF receipt generation with dynamic QR tracking codes, and multi-branch management.
Key Architectural Decisions
- Next.js & React for high-speed touch-friendly cashier terminal interface
- Firebase Firestore for sub-second multi-device order queue synchronization
- jsPDF & QR engine for instant thermal and PDF receipt generation
Verified Production Outcomes
- Eliminated lost order slips with digital QR verification and instant customer search
- Automated end-of-day gross revenue, unpaid balance tracking, and cash audit trails
Engineering Scope & Role
Full-Stack Developer & Product Designer (Solo Builder)
