Spelling in the browser is Hunspell's American English dictionary through
spellbook, fetched beside the module, with Add to Dictionary's words kept
in the browser's files; the page has one thread, so paragraphs are
checked as they are drawn.

AccessKit has no web adapter, so once a screen reader asks for it, through
a visually hidden button, the trees it would get are mirrored as hidden
elements with ARIA roles, the focus as the text area's active descendant,
and acting on one sends AccessKit's action back.

Text the bundled faces lack takes Noto's, fetched by script the first time
a page holds it: Arabic, Hebrew, Devanagari, Thai, symbols, and a CJK face
cut to the characters GB 2312, JIS X 0208 and KS X 1001 list.

Assisted-by: claude-opus-5.5