I published on Patreon a closed beta for those supporting me.
In the meanwhile, you can check the configurator homebrew. The attached archive includes the configurator and a folder (to put in the root of your USB drive) with premade configurations for three games.
On boot, the homebrew shows all the games that you have in the wbfs folder (and subfolders). Select one and make your configuration. Some of the features are still to be implemented, but I am getting there.
I tried to make the homebrew as self explanatory as possible, but if you have doubts or suggestions please let me know.