Long-form, research-backed guides on data architecture, data engineering, governance, analytics, machine learning and generative AI — from ingestion to agents.https://varath.dev/en-ushttps://varath.dev/blog/data-modeling-modern-stack/https://varath.dev/blog/data-modeling-modern-stack/Kimball, Data Vault 2.x, One Big Table and medallion layers compared on one example, plus a layered recipe for a lakehouse people and AI can trust.Tue, 27 Oct 2026 00:00:00 GMTdata-architecturedata-modelinglakehouseanalyticshttps://varath.dev/blog/lakehouse-catalogs-metadata-control-plane/https://varath.dev/blog/lakehouse-catalogs-metadata-control-plane/Why the catalog is the most strategic lakehouse decision: how the Iceberg REST protocol works, how Polaris, Unity, Glue and Horizon compare, and how to choose.Sat, 17 Oct 2026 00:00:00 GMTdata-architecturelakehousedata-catalogapache-icebergdata-governancehttps://varath.dev/blog/open-table-formats-deep-dive/https://varath.dev/blog/open-table-formats-deep-dive/How Iceberg, Delta Lake, Hudi and DuckLake turn Parquet files into reliable tables — metadata, commits, deletes, maintenance — and how to choose in 2026.Tue, 06 Oct 2026 00:00:00 GMTdata-architecturelakehouseapache-icebergdelta-lakeapache-hudiducklakehttps://varath.dev/blog/warehouse-vs-lake-vs-lakehouse/https://varath.dev/blog/warehouse-vs-lake-vs-lakehouse/Warehouse, lake or lakehouse? How each really works, why the lines blurred in 2026, and a decision tree, scorecard and scenarios to choose yours.Fri, 02 Oct 2026 00:00:00 GMTdata-architecturelakehousedata-warehousedata-lakeapache-iceberghttps://varath.dev/blog/data-architecture-complete-guide/https://varath.dev/blog/data-architecture-complete-guide/What data architecture really is, the six layers of a modern platform, how we got from warehouses to open lakehouses, the patterns that matter in 2026 — and a practical framework for choosing yours.Fri, 25 Sep 2026 00:00:00 GMTdata-architecturelakehousedata-meshstreamingai-ready-datahttps://varath.dev/blog/welcome-the-data-ai-stack/https://varath.dev/blog/welcome-the-data-ai-stack/Why this blog exists, what it will cover, and how the series are organized — from data architecture to AI agents.Thu, 24 Sep 2026 00:00:00 GMTdata-architecture