@tu-lang/dom

The browser-only half of the Tu runtime. Importing from this package is the explicit opt-in to the DOM platform — Tu's compiler does not auto-import it.

import { mount } from "@tu-lang/dom"
import { App } from "./App.tu"

mount(() => App(), document.getElementById("root"))

What lives here:

• Mount entries — mount, hydrate, defineCustomElement.
• Typed re-exports of DOM globals — document, window, Event, MouseEvent, KeyboardEvent, InputEvent, Element, HTMLElement, HTMLInputElement, Node, Text, EventListener, RequestInit, Response, FormData, URLSearchParams, AbortController, etc. These let Tu user code reach for browser types by name without pulling DOM into Tu's ambient lib.

What does not live here (stays in @tu-lang/runtime):

• Signal, VNode, Child, h, Fragment — universal vnode construction and reactive primitives.
• renderToString, renderPage, renderPageHtml — SSR. Works in Node with no DOM around.

The boundary lets a Tu program target SSR-only, a custom non-DOM renderer, or a Web Worker context without ever paying the cost of having document ambiently typed in scope. Anything that touches the DOM has to come through this package.