Basic tutorial:

FOR DEVS (Devs are needed to make the patches)

Download my app
Place the game PKG file into the directory of this app and rename it to original.pkg
Make a copy of the game in same folder and rename it to ripped.pkg
Open up the modded pkg game file with other PS4 tools
Make any changes to the game (remove languages, add cheats etc)
Repack the ripped pkg file with your usual tools
Now run the tool with both files in same folder
Click MAKE PATCH
Wait... may take while on larger games
You will now have a "patch.RiPPERD" file and a "ripped.gp4" file. These are the files you share with others. These files are now much smaller than previous versions.

FOR END USERS

Download my app and the required "patch.RiPPERD" and "ripped.gp4" file for your game
Place game PKG file, "patch.RiPPERD" and "ripped.gp4" into my app folder
Rename game pkg to "original.pkg"
Now run the tool with both files in same folder
Click APPLY PATCH
Wait... may take while on larger games
Now you will have a ripped pkg with the original file name pkg
Copy to usb/ps4
Enjoy!
NOTES: Files must be called the exact as i typed so... original.pkg ripped.pkg and patch.RiPPERD
ALL CASE SENSITIVE!