Module engine 

The composition root — the analogue of arcly-http’s App.

Engine replaces stream-center’s ApplicationRegistry::from_config. It is built by a plain-Rust EngineBuilder (no TOML, no StreamCenterConfig) and implements all three bus contracts (PublishRegistry, PlaybackRegistry, EventBus), so it drops straight into protocol code written against those traits.

Structs

AppSpec

Plain-Rust application descriptor — a named namespace of streams with its own fan-out capacity and GOP-replay policy. Build one fluently and register it via EngineBuilder::application.

Engine

The engine. Many instances may coexist in one process (ideal for tests). Cheap to Arc-share.

EngineBuilder

Fluent builder for an Engine. Takes plain owned specs instead of a deserialized config schema, so consumers never adopt stream-center’s TOML.

EngineConfig

Engine-wide configuration — replaces sc-config::ServerConfig knobs the engine actually needs.