Can You Safely Play PS4 Games Using `.pkg` Files?

http://martinmkoo618.trexgame.net/can-you-play-ps4-games-with-pkg-files-risks-and-realities

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