Third-party code bundled into assets/vendor (versions are pinned in package.json):

@jsquash/jpeg 1.6.0 (Apache-2.0)
@jsquash/png 3.1.1 (Apache-2.0)
@jsquash/oxipng 2.3.0 (Apache-2.0)
@jsquash/webp 1.5.0 (Apache-2.0)
@jsquash/avif 2.1.1 (Apache-2.0)
@jsquash/resize 2.1.1 (Apache-2.0)
upng-js 2.1.0 (MIT)
pako 1.0.11 ((MIT AND Zlib))
fflate 0.8.3 (MIT)
wasm-feature-detect 1.9.0 (Apache-2.0)

Codecs: mozjpeg, libwebp, libavif/aom, oxipng, squoosh resize. Sources: https://github.com/GoogleChromeLabs/squoosh and https://github.com/jamsinclair/jSquash