Learn Kleisli from first principles to compose effectful data pipelines with Cats or Cats Effect, wiring sources, transforms, and sinks with clear errors, observability, and easy tests. Includes a Scala example you can lift into prod.
Build Scala compile-time data contracts with macros and TypeInspector patterns so schema drift fails at compile time, not midnight in prod. Includes patterns for required vs optional fields and compile errors that block bad data early.
Deep-dive guide to building data-centric backends with Kotlin. Learn pipeline patterns with coroutines, Spark/Flink integration, LLM enrichment, lakehouse patterns (Iceberg/Delta), and observability with OpenTelemetry. Includes real code.