chern0.dev
client · Pre-launch

Domatiqa

Haris Muhibić is the lead engineer of Domatiqa, a GDPR-first home-services marketplace for Zagreb. It runs on web and mobile and charges professionals per lead instead of taking a commission.

Role
Lead engineer (partner venture)
When
March – July 2026
Links
domatiqa.com
Stack
TanStack StartHonoBetter AuthDrizzlePostgresPostGISpgvectorBullMQExpoCoolify

The product

Homeowners describe a job, such as a plumber, electrician or cleaner. Verified professionals pay to access leads instead of giving up a commission on the final job. The full flow works end to end on web and in the mobile app: request questionnaire, offers, chat, selection, reviews and an admin verification queue.

Decisions that matter

  • Personal data stays in the EU. No personal data goes through US-controlled edge compute; the app is self-hosted on EU servers.
  • Admins can’t approve identity checks by hand. Verification has to pass the automated checks.
  • Rule-based matching first. Vector matching (pgvector) is ready, but it comes later, once there is real data to learn from. The AI layer is planned on a multi-provider model router with fallbacks.
  • Safe deploys. CI gates every deploy, and database migrations run behind an advisory lock.

Stack

One TypeScript codebase. Web is TanStack Start with a Hono API. Mobile is Expo. Zod contracts and design tokens are shared between them. Postgres with PostGIS handles service areas.

Building something similar? Book a 30-minute call or email haris@chern0.dev.

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