Miguel Ángel
177464b4c1
* feat(studio-server): preview keeps a project history and names the next undo and redo
The history engine now reaches `hyperframes preview`, and its routes tell
Studio what Cmd+Z and Cmd+Shift+Z would revert next.
- The CLI preview server gives the shared API a project history, opened
on first use under ~/.cache/hyperframes/history (overridable with
historyRoot), and its file watcher feeds every change it sees to it.
Shutdown closes it, so open windows are committed, within the same
bounded wait as renders, so a history still opening cannot hold exit.
- GET /projects/:id/history also returns `back` and `forward`: the entry
each step would revert, with its label, for the Undo and Redo buttons.
- POST /projects/:id/history/window takes an optional idleMs, so a drag's
burst of writes can share one window that ends by itself (capped at
10 minutes, below where a timer overflows).
Nothing in Studio calls these yet.
* feat(studio-server): a writer that records after writing can claim its writes
Studio records an edit after writing it, and many of its writes are
server mutations deep in its save paths, so opening a window before each
write would restructure them. claim() fits that order instead.
- ProjectHistory.claim(who, label, paths, { coalesceKey?, idleMs? })
sweeps now and moves the not yet committed outside changes to `paths`
into one entry of who's, under the edit's label. Other outside writes
stay outside.
- Claims with one coalesceKey merge into one entry (a drag's burst) until
a claim with another key, idleMs (default quietMs) without one, or any
operation; Cmd+Z right after a drag undoes all of it.
- The ceiling is named where it lives: another writer's write to a
claimed file between Studio's write and its claim folds into Studio's
entry, and a write filed to another writer's open window stays there.
- Route: POST /projects/:id/history/claim { label, paths, coalesceKey?,
idleMs? } -> { claimed: { id } | null }.
* fix(studio-server): a drag back to its start claims nothing, and next steps name their files
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: http://localhost:3002/#project/my-video
# Server: http://localhost:3002
npx hyperframes preview --port 4567
In an interactive terminal, the preview stays attached until you press
Ctrl+C. In a non-interactive shell such as a coding-agent session, the same
command starts a managed preview that survives after the command returns. Use
--background or --foreground to choose explicitly, and manage persistent
previews with --status, --stop, --list, and --kill-all. Add --json to
managed lifecycle commands for machine-readable output. --foreground --json
prints the ready-session envelope once, then remains attached until stopped.
normalize-audio
Measure two local authored audio clips with integrated LUFS and match the target
to the unchanged reference. The command is a dry run unless --write is passed:
npx hyperframes normalize-audio --reference target-audio --target user-audio
npx hyperframes normalize-audio --reference target-audio --target user-audio --write
It updates only the target element's data-volume and refuses unsafe boosts
that exceed Studio's +12 dB ceiling or would clip.
render
Render a composition to MP4. Run from the project directory; the positional
argument is the project directory (not a file), so render the project's
index.html directly, or point at a specific composition file with -c:
npx hyperframes render -o output.mp4
npx hyperframes render -c ./my-composition.html -o output.mp4
Set HYPERFRAMES_RENDER_DETACHED=1 when starting a render with nohup or
disown so it keeps running after the invoking shell exits.
publish
Upload a project directory and get a hosted URL that keeps working after the CLI exits. Published projects are private by default:
npx hyperframes publish
npx hyperframes publish ./my-video
npx hyperframes publish --public
npx hyperframes publish --yes
Signed-out publishing returns an authentication-required claim URL; opening it
lets someone sign in and claim the project. Sign in first with
npx hyperframes auth login to publish an owned project you can update. Use
--public to make the claimed project visible to anyone. --yes only skips the
confirmation prompt and does not change visibility.
Signed-in publishers can use --update <url-or-id> to target an existing project
or --space <space-id> to publish into a shared team space. If the requested
project is missing or inaccessible, publishing can create a new project instead;
check the printed URL and status.
See the publish reference for all options, including video proxy settings.
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
Related packages
@hyperframes/core— types, parsers, frame adapters@hyperframes/engine— rendering engine@hyperframes/producer— render pipeline@hyperframes/studio— composition editor UI