One developer, three live products

I am Konstantinos Mangogias, and Omega Labs is my business, based in Attica, Greece. I build applications on real data: public procurement, the Greek business registry, open data about areas.

Three of them are publicly live today, and you can use them:

• diavgis.gr: Greek public procurement from Diavgeia, KIMDIS and TED, as one clean, linked dataset.
• Topognosia: how many businesses of each sector exist in each area, from the business registry.
• RankProof: free SEO, speed, accessibility and AI-search visibility checks.

How I work

• In writing, with a fixed price agreed before we start.
• You talk directly to the person who writes the code.
• The code and the hosting stay in your own account.
• Every application is checked for security, speed and accessibility before delivery.

What I work with

TypeScript, Astro, Hono, Cloudflare Workers, D1 and R2, PostgreSQL with PostGIS, and Playwright and axe-core for testing.