tasks/NOTICE

Hanzo Tasks
Copyright (c) 2026 Hanzo AI, Inc.

This product includes software from Temporal (https://github.com/temporalio/temporal), licensed under MIT:

    Copyright (c) 2025 Temporal Technologies Inc.
    Copyright (c) 2020 Uber Technologies, Inc.

Forked from https://github.com/temporalio/temporal (last upstream dependency
pin before the native rewrite: go.temporal.io/server v1.32.0-157.0,
go.temporal.io/api v1.62.13).

DEVIATIONS

Hanzo Tasks has diverged substantially from upstream Temporal:

  - Rebranded to "Hanzo Tasks"; the Go module path is github.com/hanzoai/tasks
    (upstream: go.temporal.io/server).
  - The wire protocol is rewritten to the native ZAP transport
    (github.com/luxfi/zap); all gRPC and protobuf are removed. go.mod contains
    no google.golang.org/grpc and no go.temporal.io/* dependency. The canonical
    wire schema is schema/tasks.zap.
  - The server binary is renamed from cmd/server to cmd/tasksd; tasksd serves
    ZAP on :9999 and HTTP on :7243 (health checks + the embedded React UI).
  - The engine runs in-process: tasks.Embed(ctx, EmbedConfig{...}) embeds it
    directly in the unified Hanzo cloud binary for durable cron and batch
    execution.
  - Authentication is Hanzo IAM (hanzo.id OIDC): tasksd verifies bearer JWTs
    against IAM JWKS, strips inbound identity headers, and mints X-Org-Id,
    X-User-Id, and X-User-Email from validated claims (pkg/auth).
  - Persistence is embedded SQLite via github.com/hanzoai/sqlite — a
    per-(org, namespace) shard store (pkg/tasks/store) with WAL and a single
    writer; PostgreSQL backs multi-instance production deployments.
  - The engine is reimplemented natively in pkg/tasks (in-process ZAP node +
    opcode dispatch) and the SDK in pkg/sdk (client, worker, workflow, activity,
    converter).
  - Upstream server components are removed: service/ (frontend, history,
    matching, worker), chasm/, client/, api/, proto/, components/, and tools/.
  - Container images publish to ghcr.io/hanzoai/tasks.