To solve this, I built Invovo ERP — an unminified, full-stack multi-tenant ERP & POS SaaS starter kit powered by React 19, Vite, Tailwind CSS, and Supabase PostgreSQL.

⚡ Architecture & Key Features

1. Database-Level Multi-Tenancy (Supabase RLS)

Tenant data isolation shouldn't rely on fragile frontend filtering. In Invovo ERP, multi-tenancy is enforced directly inside PostgreSQL policies:

• Every table (customers, suppliers, orders, inventory) binds to an isolated tenant_id.

• Supabase Row Level Security ensures one tenant can never query or mutate another tenant's records.

2. High-Speed POS Terminal

• Fast barcode & item search with reactive quantity increments.

• Configurable cart-level discounts and tax settings.

• Instant, printable receipt modal matching standard thermal slip specifications.

3. Double-Entry Ledgers & Khata System

• Automatic debit/credit tracking for customer receivables and supplier payables.

• Real-time balance recalculations on every transaction.

• Exportable transaction ledgers with invoice references.

4. Inventory, Low-Stock Triggers & Financial Analytics

• Custom unit registries (Pcs, Kg, Box, Liters, Meters).

• Automated visual alerts when stock levels fall below safe thresholds.

• Real-time Profit & Loss reports and revenue margin dashboards.

🚀 Live Interactive Sandbox

You can test the entire workflow live in the browser without any sign-up requirements:

• Live Sandbox: https://invovo-erp-demo.vercel.app

• 1-Click Guest Login:

  • Email: demo@invovoerp.com

  • Password: demo12345

📦 Source Code & Production Starter Kit

The complete codebase, documentation, and PostgreSQL schema migrations are available now:

• 🛒 Gumroad: Invovo ERP on (Gumroad(https://azijana.gumroad.com/l/invovo-erp-saas-starter-kit)

• 🍋 Lemon Squeezy: Invovo ERP on Lemon Squeezy
  (https://aziaisolutions.lemonsqueezy.com/checkout/buy/d41b79c8-f046-4c32-9d81-f6c30b279fb7)

Both Standard Developer ($49) and Unlimited Agency ($239) licenses are available. Feedback and technical discussions are welcome in the comments!