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Miguel Ángel
636dc042a7
* feat(core): sanitize rich text on the way into a composition Studio's patch vocabulary was inline-style, attribute, html-attribute and text-content. text-content assigns textContent, and the text-field model escapes markup on the way out and refuses a change in child structure, so a styled span had no route into a composition file. Adds a rich-text operation with one, guarded by a single sanitizer called on both ends of the trip: in the browser so the preview shows what will be saved, and on the server because that is where the file is written. Tags and style properties are a small allowlist, and an unexpected tag loses its formatting rather than its words. Spans an edit adds get their ids in the same write, so a follow-up write cannot race it. No UI yet — this is the persistence contract the editor is built on. * fix(core): document and test the sanitizer boundary * fix(core): harden rich text sanitizer traversal
@hyperframes/studio
Browser-based composition editor UI for Hyperframes. Provides a visual timeline, code editor, and live preview for building video compositions.
Install
npm install @hyperframes/studio
What it does
The studio is a React application with:
- Visual timeline — drag, resize, and arrange elements on tracks
- Code editor — edit HTML and GSAP scripts with CodeMirror (syntax highlighting, autocomplete)
- Live preview — see changes in real time as you edit
- Composition inspector — view and modify element properties
Development
The studio is embedded in the hyperframes preview command. To develop the studio UI itself:
cd packages/studio
bun run dev # Start Vite dev server
bun run build # Build for production
bun run typecheck # Type-check
Tech stack
- React 18/19, Zustand (state management)
- CodeMirror 6 (editor)
- Tailwind CSS (styling)
- Vite (bundler)
- Phosphor Icons
Documentation
Full documentation: hyperframes.heygen.com/packages/studio
Related packages
@hyperframes/core— types and parsers used by the editorhyperframes— CLI that serves the studio viahyperframes preview