Plate editor

@headless-lms/content-plate is the Plate-based implementation of the swappable activity content editor. It default-exports an EditorModule satisfying @headless-lms/editor-contract; the content blob is the Plate node array, stored opaquely by the backend — the server never interprets it.

What's included

• Text blocks — paragraphs, headings, blockquote, code blocks with syntax highlighting, bulleted/numbered/to-do lists, toggle, callout, columns, tables, dates, emoji, links, font and background color.
• Media — image, video, audio, file and URL embeds, with captions, resize, preview, and upload placeholders (uploads go through the storage adapter's presigned URLs).
• Notion-style UX — / slash command menu, drag handles and drop targets, multi-block selection, right-click block context menu (turn into, color, align, duplicate, delete), floating formatting toolbar, and autoformat shortcuts (#, >, ```, -, …).

Swapping the editor

The editor is behind @headless-lms/editor-contract: an EditorModule bundles the client-side Editor, an RSC-safe Renderer, a validate function, and meta: { type, version } identifying the content format. Implement the contract and register your module in the frontend to replace Plate entirely — existing content keeps working as long as your module declares the format it can render.