This is GCoS 1.5 with the potential to use Action replay codes by means of merging it with
Action replay 108. It has been tested on maxdrive pro, and PSO. (It will not support ViperGC
or Qoob as they already have cheats built in).

What you will need:
d0lz3.0
Action replay 108
Darkakuma/softdev action replay patches
A way to boot homebrew code (1.5mb~ file)

Method:
Patch Action replay 108 with darkakumas patch
D0lz this patched file (with "Drivesave OFF" (-m))
Place this dol (ar108-dLZ.dol) in the directory and run "runme.bat"
"GCoS With AR.dol" will be made.

How to know if it works:
Apart from giving it a go, check that the CRC of the file produced is this: 0876c44b
AR with -m flag offset is 37326528 

Thanks to Maximilianop, Sharpener (Fuzziquer_Software), softdev, and Lukeage.