Notes on data engineering: pipelines, data quality, dbt, Airflow and the lessons learned building them.https://imadbouzkraoui.com/enhttps://imadbouzkraoui.com/blog/scd-type-2-dbt-snapshots/https://imadbouzkraoui.com/blog/scd-type-2-dbt-snapshots/How dbt snapshots keep the full history of changing records — timestamp vs check strategies, the columns dbt adds, and how to query a table as it was on any date.Wed, 14 Oct 2026 00:00:00 GMTdbtsnowflakedata-modelinganalytics-engineeringhttps://imadbouzkraoui.com/blog/rules-are-not-enough-ml-data-quality/https://imadbouzkraoui.com/blog/rules-are-not-enough-ml-data-quality/Hard-coded quality rules catch the problems you anticipated. Here is how I layer ML anomaly classification on top — without drowning people in alerts.Thu, 08 Oct 2026 00:00:00 GMTdata-qualitymachine-learningkafkagovernance