Wasim Dia - AI Video Producer | ContraWork by Wasim DiaWasim Dia
AI & No-Code Builder | Founder of Onyx Labs Agency
- 1x
- Hired
- 4.20
- Rating
- 29
- Followers
Renting a car is way more than just reserving a car online What do you guys think for the #lovablechallenge Wadi Wheels: Architecture & Workflow Breakdown
At Hertz, I saw firsthand that car rental is an inventory-concurrency problem disguised as customer service. Here is how Wadi Wheels automates the entire loop from database lock to key handover.
Database-Level Inventory (Zero Double-Booking) Most platforms subtract bookings from total cars. That fails in real life.
Turnaround Buffer: Enforces a mandatory 2-hour cleaning/inspection buffer between rentals directly in the database query.
Atomic Concurrency: When a customer clicks Pay, a PostgreSQL advisory lock (pg_advisory_xact_lock) serializes requests per car class. Two people cannot book the last car at the same second.
2. Autonomous Assignment Engine
The moment the 20 JOD demo deposit clears:
Vehicle Match: Automatically assigns a free, active car from the chosen class (e.g., Hyundai Tucson, plate 21-45872).
Bay Allocation: Reserves a parking spot in Zone B (e.g., Bay B-1-2) with guaranteed spacing around the arrival time.
Private Trip Token: Generates a secure, unguessable 24-byte hex token. No renter login or password required.
3. The Digital Boarding Pass (/trip/:token)
Replaces the physical counter queue entirely:
Gate Pass QR: Scans at the Zone B pedestrian access barrier.
Key Safe Pass + 6-digit PIN: Unlocks the secure lockbox column beside the vehicle.
4-Step Visual Route: Takes the renter step-by-step from Queen Alia arrivals directly to their driver’s seat.
4. Operations & AI Triage (TypeSafe Jev)
Live Fleet View: Realtime dashboard tracks vehicles, active bays, and hours saved for staff.
Smart Inquiry Inbox: Free-form WhatsApp or web messages (in English, Arabic, or Arabizi) are processed by TypeSafe Jev.
Instant Decisioning: Flags urgency, topic (availability, price, dates), and language—then auto-generates a pre-filled booking link so staff can reply in one tap.
Results
Counter Wait Time: Reduced from 45 minutes to under 3 minutes.
Staff Overhead: Eliminates midnight handovers and manual WhatsApp scheduling.
Stack: TanStack Start (React 19 SSR), PostgreSQL (RLS), TypeSafe Jev AI, Tailwind CSS. 🧵 AI agents can build UIs. They just can't design them.
I fixed that.
design.market is a free library of design skills — packaged so Codex, Claude, Gemini & MCP agents can actually ship interfaces that look like a human designer touched them.
Here's what's inside 👇
Drop a skill into your project and your agent suddenly knows:
— Color systems & tokens
— Typography scales & hierarchy
— Dashboard layouts (not generic ones)
— Mobile onboarding patterns
— Branding & motion language
— Accessibility rules built in
Not Figma files. Not static assets.
Markdown + JSON your agent reads and applies.
Works with:
✅ Codex / OpenAI → drop into AGENTS.md
✅ Claude / Claude Code → drop into CLAUDE.md
✅ Gemini → gemini-extension.json
✅ MCP → any compatible client
https://design-focused-marketplace-582.created.app
If you've ever watched your agent generate a "SaaS dashboard" that looks like it's from 2014 — this is the fix.