Files
hyperframes/packages/cli
JamesandClaude Opus 4.6 957acbd538 feat(cli): smart default worker count based on CPU cores
Replace the hardcoded default of 4 workers with a CPU-aware heuristic:
half of available CPU cores, capped at 4. Each worker spawns a separate
Chrome browser process (~256MB RAM each), so the previous default of 4
caused resource contention on smaller machines.

The new defaults:
  2-core laptop  → 1 worker
  4-core laptop  → 2 workers
  8-core desktop → 4 workers
 16-core server  → 4 workers (capped)

Also adds --workers auto flag support, improves help text to explain
what workers do, and adds a Workers section to the rendering docs with
guidance on when to increase or decrease parallelism.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-27 20:39:04 +00:00
..
2026-03-21 22:43:56 -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

dev

Start the live preview studio in your browser:

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

npx hyperframes dev --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.html

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