Self-hosted, bitemporal (point-in-time-correct) data platform for power markets: EIA-930 (all US balancing authorities) + ERCOT real-time/day-ahead prices and load into a versioned ArcticDB store, Dagster-orchestrated, served point-in-time via a read API.

UK vehicle reliability statistics from DVSA MOT history — pass rates, defect patterns and severity tiers by make, model and year. Free Volvo evaluation sample (Parquet).

AI-powered suburb finder for Perth renters - Claude API + 470K real WA bond records

Digital twin of the Slovak economic and financial system — open core: public-register connectors, data-quality gates, entity resolution, provenance-gated query layer.