Inside the Hupper Architecture: A 7-Layer Sovereign Stack

The 7 layers

Every customer request traverses all seven layers: event ingestion (Kafka via Redpanda), durable storage (PostgreSQL 16 + pgvector), identity & policy (Open Policy Agent), sector-tuned retrieval (BGE-M3 + hybrid + cross-encoder rerank), operator orchestration (Temporal workflows), observability (OpenTelemetry + custom otel-ai extension), and egress (REST + GraphQL + SDKs).

The full architecture reference — including Avro event schemas, Rego DAC6 policies, the 14-operator autonomy matrix, RAG pipeline code, and anti-hallucination validation — is published as a 56-page technical reference. View it here or request the technical walkthrough at /demo.

For the full HTML reference see hupper-depth-artifacts/architecture.html.