The **hof‑model** package provides a lightweight JavaScript/Node model that works as an in‑memory data store with getter/setter methods, change‑event notifications, and support for field references. It also includes a simple HTTP client layer (GET/POST/DELETE) that can be subclassed to interact with REST APIs, emitting lifecycle events such as `sync`, `success`, and `fail`. It’s intended for developers building forms or services within the UK Home Office “hof” framework, though it has been deprecated and merged into hof v19.