CARSTRIMS — Multi-Tenant Car Dealer SaaS Platform

The Story

CARSTRIMS is a production-grade, multi-tenant car dealer management SaaS platform built for the Nigerian automotive market. The platform brings together five distinct user roles — Super Admin, Dealer Admin, Dealer Staff, Partner/Asset Owner, and Public Buyer — into a single cohesive system with role-based dashboards and granular permissions. Dealer Admins manage full inventory (up to 10 photos + video per car), track sales with profit/loss reporting, manage expenses, onboard staff with permission control, handle partner relationships, respond to buyer requests, confirm appointments, log vehicle movements, export financial PDF reports, and generate QR codes per dealership. Public users browse a live car feed with advanced filtering (brand, price, condition, transmission, fuel, state, year, color), like and save cars, place special requests, book appointments, and communicate via a full messaging system. Push notifications with sound and a service worker keep all users updated in real time. The platform is deployed on Vercel (frontend) and Render/Railway (backend API), with Cloudinary handling media storage and MongoDB Atlas as the primary database.