This method bypasses the need for a USB drive by sending files directly from your PC to the PS4 over a local network.
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are the package format Sony uses to distribute PS4 games, updates, DLC, and apps. Here's a concise overview of how PKG downloads and installs on PS4 systems and related notes. ps4 pkg download work
The PS4 PKG download process is , requiring PSN authentication and hardware decryption. In the unofficial scene, PKGs are not downloaded directly by the PS4; they are transferred from a PC or USB drive after being obtained via conventional web downloads. Remote Package Installers (RPI) provide a semi-direct method, but still require a PC acting as a server. This method bypasses the need for a USB