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Carmatik is probably one of my favorite projects I've worked on, and in this post I want to show off the storefront.
A car marketplace only works if people can go from 4,000 cars to the one they want, fast.
My favorite part is the part you never see. The moment your cursor touches a car card, that page starts loading in the background. By the time you click, it's already there. No spinner, no wait.
Scroll past a card, same thing happens. So the cars you're most likely to click on are already loaded before you touch them, and nothing loads twice.
That's the whole trick. Nobody notices it. They just think the site is fast.
Filters do the rest: 14 of them, counts that stay accurate while loading, empty results that explain themselves, and everything just as easy to tap as to click.
4,000+ cars. A few taps to narrow them down. A car page that feels like it was already open.
Full case study: www.romanrobert.com/work/carmatik-storefronts
Super smooth storefront layout! Fast filtering and clean card design make car discovery effortless 🚗🔥
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I built PREBUYR in Lovable for the @Lovable challenge — a route-aware booking system for mobile pre-purchase vehicle inspections.
The problem: a buyer wants the car inspected, the seller controls when the vehicle is available, and the inspector is already moving between appointments. A normal booking calendar can show a “free” slot that the inspector physically can’t reach.
PREBUYR turns that three-way coordination into one flow:
→ The buyer requests an inspection
→ The seller shares when the car is available
→ PREBUYR checks the inspector’s existing route, travel time and operating buffer
→ The seller sees only reachable appointment times
→ Once confirmed, the buyer and inspector update automatically
→ Rescheduling keeps the same appointment in sync instead of creating a duplicate
The key idea is simple:
Free doesn’t always mean reachable.
The current demo is built around a solo inspector serving the Denver metro area, but the same coordination layer can scale much further — from one inspector, to a multi-inspector company with multiple service areas, and eventually to a marketplace where customers can choose between specialists while the system coordinates availability and routing behind the scenes.
The goal is to remove as much manual scheduling and back-and-forth from the business owner as possible:
From “Can I book?” to “You’re booked.”
Partner certification note: in accordance with the challenge requirements, I submitted an application for the Lovable Partner certification. However, I’m not currently eligible to receive the certificate because I only started using Lovable at the beginning of this challenge, while the certification requirements include more than 3 months of subscription history and more than 3 published applications.
FillGrid is a transport marketplace prototype built with Lovable to help small carriers make better use of available cargo space.
The concept brings fleet visibility, route and load matching, 3D cargo visualization, and a booking flow into one interface. The goal is to make transport planning more visual and help carriers identify opportunities to fill unused capacity.
I created FillGrid around a practical business problem: unused truck space means missed revenue opportunities. This prototype demonstrates the proposed workflow using simulated operations and payments.
Live demo: https://fillgrid.lovable.app/