Kupci

Designed, built, and shipped Kupci end to end as a solo project: a Trustpilot for the Balkans, where real customers rate businesses and services. Currently live and supported across three countries: Croatia, Bosnia and Herzegovina, and Serbia.

In-house scrapers and LLMs do the heavy lifting behind the scenes, discovering and enriching hundreds to thousands of new companies every single day, so the platform's business catalogue keeps growing largely on its own.

It grew into a full business platform: a centralized business profile with one-click activation of a smart reservation system, a digital QR-code menu and price list that updates in real time, Radar for automated competitor monitoring, Signals for industry insights, a direct inquiries channel, and reputation management tooling to respond to reviews and manage online presence.

Reviews and reputation are still the core: gamification, badges, and yearly awards give both reviewers and businesses a reason to keep coming back, turning the review feed into something people actively participate in rather than just read.

Backend runs on PHP + Symfony with heavy use of cron-driven automation, deployed on Hetzner and provisioned with Terraform, plus AWS for supporting cloud services. CI/CD runs through GitHub Actions, with a Next.js + React frontend on top, geo-routed at the edge into per-country storefronts.