Muxsmith: a Mac toolkit for tidying video libraries

Field notes

Muxsmith works at the track level as well as the file level, exposing language, channel, title, codec, and subtitle details before a job runs. Its batch matcher repeats choices only for confident matches and leaves ambiguous files unchanged for review. Splitting and joining use stream copy rather than re-encoding, with keyframe alignment noted as a constraint for cuts. The page also describes local transcription and subtitle generation, while presenting both Apple silicon and Intel support.