Files
James f3964f3e45 fix(cli): handle port collisions in dev server with auto-increment
The embedded dev server (hyperframes dev) silently reported success even
when the requested port was already in use (e.g., by Cursor IDE on 3002).
This happened because the old isPortAvailable() probe had a TOCTOU race
and findAvailablePort() silently fell back to the original port on exhaustion.

Replace with serveWithPortFallback() that binds the real Hono server
directly via createAdaptorServer + manual listen(), retrying on EADDRINUSE.
Shows a yellow warning when auto-incrementing and a clear error when all
ports are exhausted.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-27 05:15:30 +00:00
..
2026-03-27 01:50:05 +01:00
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