You got 2 options, the homebrew channel, which, for nothing is risky, is totally safe, or the homebrew launcher, wich lets you choose which homebrew to launch, still, this last one need you to enter the twilight hack each and everytime you want to run the emulators, while with the homebrew channel you only need to turn the wii on and enter the channel like anything else. Just select the emulator you want to run and you are set
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