You can also specify which app will load the plugin, for exemple if you want to enable vitacheat only in certain game, you need to write the path of the file under the code name of the app. To know the code name of the app, either you look with vitashell for the code name of the homebrew in ux0:app (often easy to guess with the names), or you google the code name of the game you want. For testkit users, you can easly know the code name of an app by showing the information of the app in the live area.
Additionally, you can specify which app will not load the plugin. It can be useful for exemple when your overclock tweak crash adrenaline. To do that, you need to add a ! before the code name.