Cloud Data Solutions Are Overrated: Building a Pan-European Business Database for Lunch Money

Antanas Baltrušaitis

We are told that modern data engineering requires expensive cloud warehouses and enterprise SaaS. This talk challenges that narrative. I will show how I built scoris.eu - aggregating business data from hundreds of sources across Lithuania, Latvia, Estonia, Finland, and the UK - as a solo developer. Using a purely open-source Python stack (dlt, dbt, Prefect) on cheap infrastructure, I will demonstrate that with the right architecture, you can integrate data at scale without burning cash on the cloud.