https://blog.daana.dev/blog Insights on data engineering, declarative architecture, and building modern data platforms en-us hello@daana.dev (Daana) hello@daana.dev (Daana) Tue, 24 Mar 2026 00:00:00 GMT https://blog.daana.dev/blog/contract-driven-data-transformation https://blog.daana.dev/blog/contract-driven-data-transformation Replace hand-written staging SQL with declarative YAML contracts. A generator reads contracts and produces consistent, type-safe SQL across all your source systems. The contract becomes the documentation, the schema definition, and the transformation logic - all in one artifact. Tue, 24 Mar 2026 00:00:00 GMT hello@daana.dev (Daana) data-engineeringdata-contractsdeclarative-architecturedata-modeling