The project is now public domain under the Unlicense (LICENSE, README).
The packaged archives bundle GPL ffmpeg/ffprobe builds but did not include
their license. fetch_ffmpeg.py now extracts the build's LICENSE.txt into
ffmpeg/LICENSE.txt, and build.py --ffmpeg-dir copies it into the archive as
ffmpeg-LICENSE.txt, failing before the PyInstaller run if it can't find one.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
