Elarionus

I have two paths that are currently closed into a pentagon (sort of in the shape of a house). One is smaller, inside the other. I'm wanting to make the area between those two paths filled. Is there a good way to do that? Even if I can't fill, is there a boolean system?

I just purchased Affinity the other day and I'm quite surprised this isn't a feature! I'd love to see it implemented in Photo and Designer. Maybe even have it as an option in Publisher as well, because there are many situations where partial opacity layers are massively interrupting my workflow.