.pkg são apenas instaladores regulares. Eu li isso com .mpkg o seu poder selecionar e desmarcar outros arquivos .pkg.
As extensões .mpkg e .pkg parecem serem a única diferença. Certamente há mais do que isso?
These packages do not contain actual software, they simply depend on other packages to be installed. This setup allows entire sets of software to be installed by selecting only the appropriate metapackage. For example, an Ubuntu user can install the Kubuntu environment (KDE and all its associated programs) by selecting "kubuntu-desktop."
Tags package-management macos