can I use cocoa powder and chocolate chips instead of cacao? and also butter instead of coconut oil?

Hi there,

I haven't tested this, but you can certainly try it! It doesn't sound too problematic to me. A few thoughts:

I've read that cocoa powder isn't as absorbent as cacao powder, so you may want to use a little less water.
Similarly, chocolate chips tend to be softer than cacao nibs, so you may want to start with a little less than recommended and add as it seems appropriate.

Let us know how it goes!