alepha@docs:~/docs/reference/providers$
cat RoomEngine.md | pretty
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#RoomEngine

#Import

typescript 
1import { RoomEngine } from "alepha/websocket";

#Overview

Runtime-neutral heart of a stateful room: it owns the in-memory state, the connected sockets, the authoritative tick loop, per-recipient send and the room lifecycle — with zero dependency on Node's ws or on cloudflare:workers. Both providers construct one of these and feed it their native sockets through the {@link RoomSocket} adapter.

Lifecycle: the room comes to life lazily (first join, or first call on a headless room), running the state factory once. While at least one socket is connected and tickHz > 0, a loop calls onTick every 1000/tickHz ms. When the last socket leaves, onEmpty runs, the loop stops and the state is discarded — so an empty room costs nothing.