This app has no service or any background execution. It generates a dynamic UI using the config xml provided by "/res/uci.sh config" command and calls the actions defined by the same xml upon user actions.
The same application can be used to configure different kernels if the kernel has support for the interface. An example implementation can be found in the initramfs of Siyah Kernel for S2 ( http://github.com/gokhanmoral/initramfs3 ).
The source code of this app can be found in http://github.com/gokhanmoral/STweaks