Custom Sky for Custom dimension

I'm currently trying to make a space mod like galacticraft but for 1.18. I want to make a custom sky for my moon dimension and also my space dimension, but the sky is the same as the overworld sky I think it would be weird to be on the moon and then seeing the moon in the sky, I just want to replace the moon for my dimension to an image of the earth is there any way to do that? I know there is code involved but I haven't found any tutorials online so I really need some help.