Thanks to TGE, the English version of Persona 5 has an easy mod loader. Simply download the eboot, replace the existing one with it in the game’s USDIR folder, and drop a mod.cpk in the folder. Files inside that CPK will override those in the other ones.
This is by far the easiest that modding P5 has ever been. Now it’s about to get even easier for you guys, since all mods added to the site will also be provided as premade mod.cpks!
Now, if you only want to use a specific mod, it’s as easy as downloading the mod.cpk, replacing the eboot with the mod loader, and dropping it in there with it!