Hardware vs. Software for creation of an AGI/ASI

I am wondering wether you think that hardware or software is more important/will be the key to realizing real AGI/ASI.

I honestly don’t know, because as afaik the brain is just meat (like physical hardware), so wouldn’t AGI/ASI depend on hardware probably too? Or are the neurons firing and the chemical reactions like the software of the brain, meaning software would be more important?

Thanks