getSystemTotalMb returned os.totalmem() — the host's physical RAM — so a 4GB Docker container on a 32GB host never auto-flagged as low-memory and the low-memory render profile didn't activate exactly where it's needed most. Read the cgroup v2 limit (/sys/fs/cgroup/memory.max, with the v1 fallback and its no-limit sentinel handled) and use min(host, cgroup). The probe is best-effort and non-Linux platforms never touch /sys. Review follow-ups: worker sizing (calculateOptimalWorkers) and the getSystemResources diagnostics previously read os.totalmem() directly and now use getSystemTotalMb(), so container limits actually govern parallel spawn decisions; CLI telemetry reports the effective total as well. The cgroup probe result is cached for the process lifetime (the limit is immutable per process) with a test reset hook; a detected limit logs once so operators can see which source governs, and a present-but-unreadable cgroup file warns once instead of failing silently — absence stays silent. The root-path-vs-/proc/self/cgroup trade-off is documented at the path constants. cli/tsconfig.json gains the gcp-cloud-run/sdk source alias (matching the existing producer and aws-lambda entries) so the cli typecheck resolves from source in a fresh checkout. Refs #1193, #1194, #1195, #1236
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