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Vance IngallsandClaude Opus 5
2a8e8f94dc
A fifth face of the id-space mismatch, not in the review's list. TimelineGroupRow built its member list from `el.key ?? el.id` and handed it to isGroupHalfLitUnderSolo, which compares against the soloed set — bare DOM ids now that the header pushes them that way. Soloing a member lit nothing on its group, the one signal that says "some of what is under here still plays". Found by auditing every consumer of `soloed` rather than trusting the handoff's claim that this call site "happens to pass the bare id" — it passes a bare id for the GROUP and store keys for its MEMBERS. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
@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