Install PS4 Game Backups and DLC (.pkg files) - CFWaifu
BenjaminFaal releases multi-platform PS4 Remote PKG Installer GUI supporting Windows, macOS, Linux and more - You can now install PKGs on your PS4 from everywhere! - Wololo.net
GitHub - FrostySo/Ps4-Pkg-Sender: Sends pkg files to your ps4 remotely
Install Pkg Files To Ps4 Without Usb or Hdd 5.05 / 7.55 - Remote PKG Installer - YouTube