Architecture Decision Records

Ten ADRs covering the cross-cutting choices that apply across all patterns and stacks in this repo.

ADR	Title	Status
ADR-0001	Pattern matrix repo structure	Accepted
ADR-0002	Idiomatic language per ecosystem	Accepted
ADR-0003	Table format landscape — Iceberg vs Delta vs Hudi	Accepted
ADR-0004	Stream processing engine — Flink vs Spark Structured Streaming	Accepted
ADR-0005	Orchestration landscape — Airflow vs Prefect vs Dagster vs Temporal	Accepted
ADR-0006	Lakehouse storage layer — open formats over managed warehouses	Accepted
ADR-0007	CDC tooling — Debezium primary, Airbyte as managed alternative	Accepted
ADR-0008	Local dev approach — Docker Compose per variant	Accepted
ADR-0009	Graph processing — when graph is the right model	Accepted
ADR-0010	ML feature pipeline — online vs offline store split	Accepted