Sovereignty Is an Architecture Decision, Not a Compliance Checkbox

Most organisations treat data sovereignty as a compliance requirement to be satisfied after the architecture is designed. DCAI built it the other way around — and the difference turns out to matter enormously for what workloads are even legally possible.

In this session, Chris Ott (WEKA) and Ali Syed (DCAI) walk through the specific decisions that made Gefion one of Europe's first fully sovereign, end-to-end encrypted AI supercomputing platforms: how the data layer was designed to eliminate GPU stalls, how multi-tenant isolation was achieved without a throughput penalty, and why certain government contracts only exist because of encryption choices made at the infrastructure design stage.

This is not a roadmap session. It is a postmortem on a production system — what worked, what the trade-offs were, and what the on-prem versus cloud question actually looks like when sovereignty is a hard constraint, not a preference.