install macOS Catalina on virtualbox on window easy and quick
image file
virtualbox
https://www.virtualbox.org/wiki/Downloads
vb code
https://mega.nz/file/EdRn3SjY#i_iFMERXbl39aqv1U17ZH0uWp1-wbWwX3xg4vrbAD3s
also
install macos highserria on virtualbox windows pc
https://www.youtube.com/watch?v=GCqj1l7GOI4
install macOS mojave on linux qemu
https://www.youtube.com/watch?v=KChQhfRWCfIv