CLI reference

vumo render <compositionId> [options]

Option	Default	Description
-p, --project <p>	process.cwd()	Project root (containing package.json).
-o, --output <p>	out.mp4	Output file path.
--crf <n>	18	H.264 CRF, lower = better quality (range 0–51).
--workers <n>	min(cpu, 4)	Parallel render workers (1–32).

Examples

vumo render my-clip
vumo render my-clip --output dist/preview.mp4 --crf 23
vumo render my-clip --workers 1            # serial, deterministic timing
vumo render my-clip --project ./my-video   # run from outside the project

Environment variables

• FFMPEG_PATH — override the bundled ffmpeg-static binary (useful for CI runners with system FFmpeg).

Exit codes

• 0 — success, MP4 written
• 1 — render failed (composition not found, ffmpeg error, etc.)