Complete Noob here and I need answers to go any further into gamecube emulation on wiiu

I have Homebrew Launcher on my Wii U & vWii, and i access it through loadiine.ovh. My main issue is Nintendont. I want to figure out how to use only my gamepad to play the games, but I cant seem to find any helpful videos on how to do it. I am on 5.5.2. Also, what is a inject? I just really want

Play GameCube Games on the Wii U Gamepad!

Share and Download custom Wii U Themes, Page 21

What's better, Wii or GameCube, and why? Explain both console's pros and cons. - Quora

Share and Download custom Wii U Themes, Page 21

I really want to play Wind Waker, Which other games would make a Wii U purchase worth while? (I also own a Switch, so no games that are also on there)

How To Download Gamecube Games On Wii Homebrew

Nintendont -, Yes, you CAN play GameCube games on your Wii U!

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How to Play GameCube Games on Wii U

Is the Wii U backwards compatible with the GameCube? - Quora

How to Upload the Log File - Citra Support - Citra Community