Are `.pkg` Files the Key to Free PS4 Games? The Risks Explained

https://writeablog.net/t4kxzgu465/what-are-pkg-files-pkg-info-are-the-layout-utilized-by-sony-to-kit

To play PS4 games using `.pkg` files, your console must be jailbroken. Jailbreaking involves modifying the PS4’s software to allow the installation of unsigned (unofficial) software, which includes `.pkg` files