cast-render

Turn an existing asciicast .cast recording into publishable artifacts: a themed GIF (agg → gifsicle) and/or an MP4 (ffmpeg), sized for GitHub READMEs. All presentation decisions — trim, speed, idle caps, theme — happen at render time; the source cast is never modified.

When NOT to use

• No recording exists and the goal is a scripted demo → tape-demo.
• Capturing a session in the first place → cast-record.
• Secrets/paths in the recording → cast-redact (and do it before rendering — ask/check if the cast was scanned).
• Generic video editing (screen recordings, mov files) — this consumes asciicast only.

Workflow