Files
hyperframes/packages/cli
ukimsanov 4ae59e5a7d fix(snapshot): two sub-composition seek bugs causing black beats
Bug 1: snapshot fired before all sub-compositions loaded
- Old: resolved when keys.length >= 2 (first sub-comp registered)
- Fix: wait until all data-composition-src hosts have timelines
- Verified: beats 2-4 now visible in huly-promo v4 snapshots

Bug 2: sub-comp timelines seeked to global time, not local time
- Old: tls[key].seek(globalTime) — with exit animations, global t=29
  clamps to GSAP end (t=7), elements at opacity:0 from exit fade
- Fix: seek to global_t - host.data_start (correct local time)
- Verified: beat-5 (starts at t=26.7) seeked to local t=2.3 at
  global t=29 — 'Join the Movement' now visible in snapshots

Both bugs confirmed via render vs snapshot comparison before fixing.

Also fix HeyGen v3 API docs: response is data.audio_url not audio_url
directly; word_timestamps uses 'word' key not 'text' — normalize before
saving as transcript.json
2026-05-16 11:48:09 -07:00
..

hyperframes

CLI for creating, previewing, and rendering HTML video compositions.

Install

npm install -g hyperframes

Or use directly with npx:

npx hyperframes <command>

Requirements: Node.js >= 22, FFmpeg

Commands

init

Scaffold a new Hyperframes project from a template:

npx hyperframes init my-video
cd my-video

preview

Start the live preview studio in your browser:

npx hyperframes preview
# Studio running at http://localhost:3002

npx hyperframes preview --port 4567

render

Render a composition to MP4:

npx hyperframes render ./my-composition.html -o output.mp4

lint

Validate your Hyperframes HTML:

npx hyperframes lint ./my-composition
npx hyperframes lint ./my-composition --json      # JSON output for CI/tooling
npx hyperframes lint ./my-composition --verbose   # Include info-level findings

By default only errors and warnings are shown. Use --verbose to also display informational findings (e.g., external script dependency notices). Use --json for machine-readable output with errorCount, warningCount, infoCount, and a findings array.

compositions

List compositions found in the current project:

npx hyperframes compositions

benchmark

Run rendering benchmarks:

npx hyperframes benchmark ./my-composition.html

doctor

Check your environment for required dependencies (Chrome, FFmpeg, Node.js):

npx hyperframes doctor

browser

Manage the bundled Chrome/Chromium installation:

npx hyperframes browser

info

Print version and environment info:

npx hyperframes info

docs

Open the documentation in your browser:

npx hyperframes docs

upgrade

Check for updates and show upgrade instructions:

npx hyperframes upgrade
npx hyperframes upgrade --check --json  # machine-readable for agents

Documentation

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