What about a kind of consciousness-based 'materialism'?

What do philosophers have to say about the possibility that the entirety of the world is material, but this material is not 'hard stuff'?

So, consciousness may be the only thing there is, but consciousness is still 100% mechanical (so-to-say) based, just like material is?

In other words, maybe there is just consciousness, but this consciousness is the physical world.

So, there aren't actual things out of which consciousness emerges (such as us). But it's more so there is consciousness perfectly creating the physical world which is not actually hard, but only seems that way?