let max_ref: &[f32; 16] = mx_total.as_ref();(found type &[[f32; 4]; 4] )
let max_ref: &[f32; 16] = glm::value_ptr(&mx_total);(found type &[f32])
write_descriptor_sets, and it feels like we can do it. So I'm going to prototype this and see.
virtiospec for a bit and https://docs.oasis-open.org/virtio/virtio/v1.1/cs01/virtio-v1.1-cs01.html#x1-3200007 mentions
gfx-rs' amazing integration, in the area of virtualization