Mirror the local hyperframes render variables UX on the Lambda CLI: - --variables '<json>' inline JSON object of variable values - --variables-file <path> path to a JSON file with variable values - --strict-variables fail on type/declared-mismatch (warn by default) Resolution + validation logic is hoisted to packages/cli/src/utils/variables.ts so both surfaces share one parser. The new reportVariableIssues helper formats the warning block + handles --strict-variables exit, deduping the per-CLI issue-handling block. Variables flow into SerializableDistributedRenderConfig.variables and reach every chunk worker via the path PR 9.1 + 9.2 wired up (plan() → meta/encoder.json → renderChunk() → window.__hfVariables). Pre-validation against the composition's data-composition-variables declaration runs only when the project's index.html is on disk — --site-id pointing at a pre-uploaded site that was packaged elsewhere skips the check, matching how the local CLI treats unreadable index files. The render.ts re-exports of parseVariablesArg / resolveVariablesArg / validateVariablesAgainstProject are dropped; the matching tests move to packages/cli/src/utils/variables.test.ts where the implementations now live. Docs: docs/packages/cli.mdx adds a section on --variables / --variables-file / --strict-variables for lambda render, including the 256 KiB Step Functions execution-input cap and a pointer to the upcoming templates-on-lambda guide (PR 9.5). Phase 9 PR 9.3 of the distributed rendering plan.
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
Related packages
@hyperframes/core— types, parsers, frame adapters@hyperframes/engine— rendering engine@hyperframes/producer— render pipeline@hyperframes/studio— composition editor UI