Files
hyperframes/packages/studio
Miguel Ángel befdc993c0 test(studio): gate playback cost with the Catalog open
A new step in the Studio timeline viewport job plays a small GSAP film with
the Catalog showing. It holds three work counts exactly through
perf-ceilings.json (Catalog elements, composited layers, eventful timeline
seeks per frame), and times main-thread CPU per frame against the base
branch's Studio built on the same runner, in alternating runs, failing above
1.15x. Chrome runs without vsync or a frame cap, so a 60 Hz runner measures
what a frame costs, not the display's pace. The catalog, its posters and GSAP
are served by the script, so the counts never follow the live registry.
2026-09-26 23:10:30 -04:00
..

@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 19, Zustand 4/5 (state management; development uses Zustand 5)
  • CodeMirror 6 (editor)
  • Tailwind CSS (styling)
  • Vite (bundler)
  • Phosphor Icons

Documentation

Full documentation: hyperframes.heygen.com/packages/studio