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Vance Ingalls
94f3e5efa7
The design docs live on their own branch and do not travel with this PR, so the vocabulary rule they carry has no way to reach whoever next edits this component. It was already broken once this week: the strip shipped a "Bus level" label and a "how loud this bus is playing right now" tooltip. Extends the copy test that already guards "no dB" — same idea, same file. It reads the rendered text AND every title/aria-label, because the regression it is named for was a tooltip and textContent would have missed it. Verified against the real defect: restoring the "Bus level" label fails it with `expected 'Bus level⚠ Too loud…' not to match /\b(bus|submix|fader|insert|send)s?\b/i`. Also restores the ⚠ the §5 mockup gives "Too loud" in the file's own docblock, which had drifted from the markup.
@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