Naulakha CMS: Gas Cylinder Management System

Built a comprehensive management system for a gas cylinder rental business processing 1000+ transactions record across 50+ clients. This was my first enterprise-scale application handling real business operations.

Technical Challenge

The business was tracking cylinders manually with spreadsheets, leading to inventory discrepancies and time-consuming paperwork. They needed a complete digital solution for cylinder tracking, client management, and financial operations.

Solution Architecture

Frontend: Next.js 14 with TypeScript for the admin dashboard

Backend: MongoDB with Mongoose ODM for complex business data relationships

Authentication: NextAuth.js with role-based access (Owner/Admin/Operator)

Automation: Nodemailer + Handlebars for PDF receipt generation and email delivery

State Management: Recoil for real-time inventory updates

Key Technical Features

Multi-role dashboard with different permissions and data access

Real-time inventory tracking with serial number management

Automated PDF generation for receipts, ledgers, and transaction reports

Complex data modeling for cylinder types, client accounts, and transaction history

Atomic transaction processing to prevent data inconsistencies

Learning Experience

This project taught me enterprise application architecture, complex state management, and building systems that handle real business operations. Working with actual users showed me the importance of reliable data consistency and user-friendly interfaces for business workflows.