Files
Miguel Ángel 25f34f7f93 fix(cli): fix preview opening wrong project in dev mode (#221)
## Summary

One-character fix: removes leading `/` from the preview URL hash.

Dev mode opened `#/project/<name>` but the studio expects `#project/<name>`. The route regex in `App.tsx` (`/^#project\/([^/]+)/`) never matched the slash-prefixed hash, so it fell through to auto-selecting the first project from `/api/projects` — ignoring the project path you passed on the CLI.

## Root cause

```
// preview.ts dev mode (line 176) — WRONG
`${frontendUrl}#/project/${pName}`

// App.tsx route parser (line 34) — expects this format
window.location.hash.match(/^#project\/([^/]+)/)
```

Local-studio mode and embedded mode already used the correct `#project/` format.

## Test plan

- [x] Typecheck passes
- [x] `npx tsx cli preview /path/to/project` opens the correct project in the studio
2026-04-07 17:40:24 +02:00
..
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

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