What to do after getting the homebrew channel on the Wii?

So ive jailbroke DS’s before, first time doing it with a wii

I followed this tutorial ( https://youtu.be/zGkjuqh0YHI?si=26Wx9CbBJmuNWDZX ) and it just stops after he gets the homebrew channel with the water background. No idea what to do now. How do I get roms now? Is there other things i’ve gotta download? Explain like Im 5 please 🥲