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Miguel Angel Simon Sierra
675cbe194d
Two more regressions the QA triage attributed to this stack. Dragging a flat tween's boundary diamond did nothing: the handler bailed on `!anim.keyframes` even though resolveKeyframeRetime already resolves that case to a position/duration resize. The empty remap now dispatches update-meta, which moves the window without rewriting the authored flat tween into keyframes form (what the keyframed-resize writer would do as a side effect). The property panel's keyframe gutter guessed one animation per property group, so clicking a keyframe authored by a sibling tween on a merged row named the wrong tween and the writer silently removed nothing. The diamond now reports the clicked keyframe's own animationId, with the group guess kept as the fallback for cache rows that carry no identity.
@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