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Miguel Angel Simon Sierra
e9632ade66
The studio shipped one eager entry chunk of 1,126,473 B gzip. CodeMirror and the markdown renderer were the two largest blocks on that path and neither is needed to paint the shell. - React.lazy the source editor (@codemirror/*, @lezer/*) and the storyboard source view (marked, dompurify), copying the deferred-dependency shape of the mediabunny dynamic import in player/lib/mediaProbe.ts. - Add LazyPanel: one Suspense + error boundary whose fallback fills the panel's slot (h-full w-full flex-1) so opening the editor cannot shift the layout, and whose rejected-chunk state renders a visible retry instead of a blank panel. - manualChunks splits the React runtime and the remaining vendor code out of the app chunk so app-only deploys stop invalidating them for repeat visitors. - tests/e2e/studio-bundle-budget.mjs gates the built artifact with no browser. It measures the entry module plus its modulepreloaded chunks, not the entry file alone: the entry file alone gzips to well under half the eager total and would report a false pass while the browser still downloads all of it. The gate enforces a ratchet just above what we ship today and reports the gap to the 600 KiB target every run. Closing that gap needs the Node-only AST stack (@babel/parser, esprima, acorn, recast, ast-types) out of the browser bundle, where it arrives through @hyperframes/sdk — outside this unit.
@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