The creator of the app posted an update. So we apparently have the option to also use TCPGecko or TCPGecko with Caffeine. There are also some nice Splatoon specific features!
However, this application demonstrates the biggest problem I have with Wii U hacks. You can only use one application that uses memory hacks. If you use another one with resetting, the Wii U crashes.
It makes me wish that there was a plugin system for the Wii U that would allow multiple mods to exist peacefully (kind of like the plugin system for hacked PlayStation devices).