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5 Months

NxT Car Rental

Car Rental Management Software

Full-Stack Developer|2024
NxT Car Rental

Overview

Complete car rental management system with booking, fleet tracking, billing, and customer management modules.

The Problem

Car rental businesses struggle with fragmented systems — separate tools for fleet management, booking, billing, and customer communication. This leads to double-bookings, billing errors, and poor fleet utilization.

Architecture & Approach

Built as a comprehensive Frappe/ERPNext app with custom DocTypes for vehicles, bookings, contracts, and maintenance. The system uses Frappe's permission system for role-based access (admin, counter staff, customer portal) and background jobs for automated billing and reminders.

Technology Stack

PythonFrappeERPNextJavaScript

Key Features

Fleet Management

Vehicle registry with availability calendar, maintenance scheduling, and document tracking.

Booking Engine

Real-time availability, flexible pricing rules, insurance options, and add-ons.

Contract & Billing

Automated contract generation, invoicing, damage charges, and deposit handling.

Customer Portal

Self-service booking, history, digital contracts, and loyalty points.

Maintenance Tracker

Scheduled services, repair logging, vendor management, and cost tracking.

Analytics Dashboard

Utilization rates, revenue per vehicle, booking trends, and maintenance costs.

Lessons Learned

Complex pricing rules (seasonal, duration-based, loyalty) need a dedicated pricing engine.

Offline-first counter interface is essential for locations with unreliable connectivity.

Damage documentation workflows must be bulletproof for insurance claims.

Fleet utilization reports drive purchasing decisions — make them accessible.