1: Go into scripts folder and populate keys.dat-template.txt with the relevant keys.
2: Rename keys.dat-template.txt to keys.dat
3: Have python 3.x installed, and the bitstring module.
4: Run menu.py,if you have your python environmental variables installed you can just click on menu.py.
5: Select from the menu what ips patch you want to make.
6: Drag package3 or the firmware folder on to the menu.
7: Created patches will be in the scripts/output folder.

See GBATemp for more info:
https://gbatemp.net/threads/info-on-sha-256-hashes-on-fs-patches.581550/
