diff --git a/README.md b/README.md
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@@ -2,6 +2,8 @@
 
 [![GitHub](https://img.shields.io/badge/GitHub-181717?logo=github&logoColor=white)](https://github.com/ExaDev/document-schema.js) [![npm](https://img.shields.io/badge/npm-CB3837?logo=npm&logoColor=white)](https://www.npmjs.com/package/document-schema.js) [![Release](https://img.shields.io/github/v/release/ExaDev/document-schema.js)](https://github.com/ExaDev/document-schema.js/releases/latest) [![CI](https://img.shields.io/github/actions/workflow/status/ExaDev/document-schema.js/ci.yml?branch=main)](https://github.com/ExaDev/document-schema.js/actions)
 
+> **This repository has moved.** `document-schema.js` now lives at [`packages/document-schema.js`](https://github.com/ExaDev/documents.js/tree/main/packages/document-schema.js) in the [`ExaDev/documents.js`](https://github.com/ExaDev/documents.js) monorepo. This repository is archived and will receive no further commits, releases, issues, or pull requests -- file issues and send pull requests against the monorepo instead. The npm package itself is unaffected: `document-schema.js` keeps publishing from its new home under the same name.
+
 > The canonical, format-agnostic content and document-package schema pivot shared by [ooxml.js](https://github.com/ExaDev/ooxml.js), [odf.js](https://github.com/ExaDev/odf.js), [documents.js](https://github.com/ExaDev/documents.js), [pdf-codec](https://github.com/ExaDev/pdf-codec), and [markdown-codec](https://github.com/ExaDev/markdown-codec).
 
 Both `ooxml.js` and `documents.js` independently arrived at the same content vocabulary, producing two field-identical copies in two places. This package is the fix: one schema, imported by every format package instead of redefined by each. It also sidesteps a circular dependency (`documents.js` depends on both `ooxml.js` and `odf.js`).