audio-mix-maker

Distinct from reel-builder:

• reel-builder ORCHESTRATES generation + stitching from scratch (script → shots → music → stitch). This skill is JUST the final-mix step on assets you already have.
• No script / no video / music generation — bring your own.

Distinct from subtitle-burner:

• subtitle-burner adds CAPTIONS. This skill adds AUDIO MIX.
• Both are pure-ffmpeg utilities — they share the lightweight wrapper pattern.

Distinct from voiceover-maker:

• voiceover-maker GENERATES TTS. This skill MIXES audio onto video.