KCOH
Software Inc.
AutoMedic logo

Case Study

AutoMedic

A full platform for a Montreal mobile mechanic business. Custom booking engine with live slot availability, admin dashboard with instant database sync, and bilingual support. All built from scratch.

  • Zero double-bookings
  • Email + SMS with .ics
  • Bilingual EN / FR
The System We Built

What it took to make AutoMedic run.

SYSTEM ARCHITECTUREMobile mechanic · Québec
REST
SQL
Website

HTML · vanilla JS

Admin

vanilla JS · Bearer

Cloudflare Edge

Functions · KV · Google reviews

Express API

REST · Railway

slotsbookingsconfigcancel
PostgreSQL

single instance · unique-slot index

Booking engine

row-locked tx · unique-slot index

Admin Auth

bcrypt · in-memory Bearer

Notifications

Resend email · Twilio SMS · .ics

Transactional booking

Bookings commit inside PostgreSQL transactions: no double-books, no race conditions. Two customers cannot win the same slot.

An admin panel that runs the day

Live schedule, service CRUD, date overrides, and revenue stats in one dashboard, synced instantly with the database.

Notifications that arrive

Resend email and Twilio SMS confirmations, each with an .ics calendar attachment, so appointments land where customers actually look.

Bilingual by default

English and French with runtime switching and locale detection. Built for how Montreal actually talks.

The Problem

For a mobile mechanic, the calendar is the business. Every double-booking is a missed job, a wasted drive, or a customer waiting in a parking lot for a van that is not coming.

AutoMedic replaced the phone-and-notebook workflow with a booking engine that knows, in real time, exactly which slots exist and refuses to sell the same one twice.

The Outcome
0
Double-bookings, enforced by the database
0
Languages, switchable at runtime
Live
At automedicquebec.com

Built with

  • Node.js
  • Express
  • PostgreSQL
  • Resend
  • Twilio
  • Railway
  • Cloudflare

Let's talk about what you're building.

30-minute call. No pitch, no pressure. Just a conversation about your systems.