Hacking How do I use cheats in retroarch?

[kbf]

I see option for cheats but it's very confusing and there's all these numbers and stuff, there's a load cheatfile option but I don't know what it wants me to load? isn't there a way to just enter gameshark codes like from here?

https://www.supercheats.com/gameboy/pokemon-crystal/4715/here-are-all-gameshark-for-pok/