Licenses

Mr. Zoo 2.7. Mr. Zoo is built on the shoulders of giants. Amazing open-source work from various individuals and groups. Here's what's inside, and how to get the source.

Inside

• yt-dlp: its official macOS build (GPLv3 or later as a combined work; notices in Licenses), kept up to date from github.com/yt-dlp.
• FFmpeg 9.0.2 (LGPL 2.1 or later), built from unmodified sources with dav1d (BSD 2-clause) and zimg (WTFPL).
• Deno 2.9.8 (MIT) with V8 (BSD 3-clause) and ICU (Unicode License V3), and the Rust crates listed in Licenses/deno-CRATES-NOTICES.txt (MIT, Apache 2.0, BSD, ISC and others; those under MPL 2.0 have their source at crates.io).
• gifski 1.34.0 by Kornel Lesiński (AGPL 3.0 or later; gif.ski) with libimagequant (GPL 3.0 or later), from unmodified crates.io sources, built without FFmpeg.

The licence texts

They're in the app, with the exact build scripts: right-click Mr. Zoo, Show Package Contents, then Contents/Resources/Licenses.

Source code

For three years from each release, the complete source code of FFmpeg, dav1d, zimg and gifski (with libimagequant and every crate gifski-SOURCE.txt lists) as built here, and of the yt-dlp release inside (that tag's source), is available on request: write to Mr_Zoo@BFDWorks.com.

The rest of yt-dlp's build (Python and the parts its THIRD_PARTY_LICENSES lists) comes with its maintainers' own source offer, in Licenses/yt-dlp-THIRD_PARTY_LICENSES.txt.