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.
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.