https://www.bleepingcomputer.com/news/security/docker-osx-image-used-for-security-research-hit-by-apple-dmca-takedown/

The popular Docker-OSX project has been removed from Docker Hub after Apple filed a DMCA (Digital Millennium Copyright Act) takedown request, alleging that it violated its copyright.

Docker-OSX is an open-source project created by security researcher Sick.Codes that allows for the virtualization of macOS on non-Apple hardware. It can be hosted on any system that supports Docker, including Linux and Windows.