How to Rotate ARKit Entity Towards the User's Screen/Camera

Question

I have it set up so that the mesh I'm adding to my scene is rendering correctly (right side up so that the text I add as a child is legible), but the rotation is always the same (globally) whereas I want the rotation (on the XZ plane) to be towards the camera, but I'm not exactly sure how to go about this

My code looks like this:

@objc func handleTap() {
            guard let view = self.view else { return }
            
            guard let query = view.makeRaycastQuery(from: view.center, allowing: .estimatedPlane, alignment: .any) else { return }
            guard let raycastResult = view.session.raycast(query).first else { return }
            
            // set a transform to an existing entity
            var transform = Transform(matrix: raycastResult.worldTransform)
            
            // Create a new anchor to add content to
            if(oldAnchor != nil) {
                view.scene.removeAnchor(oldAnchor!)
            }
            let anchor = AnchorEntity()
            oldAnchor = anchor
            view.scene.anchors.append(anchor)
            let material = SimpleMaterial(color: .lightGray, isMetallic: false)

            // Add a curve entity
            let curveEntity = try! ModelEntity.loadModel(named: "curve")
            curveEntity.transform = transform
            curveEntity.transform.rotation = simd_quatf(angle: 0, axis: SIMD3<Float>(1, 1, 1))
            curveEntity.scale = [0.0002, 0.0002, 0.0002]
            
            let curveRadians = 90.0 * Float.pi / 180.0
            curveEntity.setOrientation(simd_quatf(angle: curveRadians, axis: SIMD3<Float>(1,0,0)), relativeTo: curveEntity)
            // Adding text and children and materials etc.
            ...
            anchor.addChild(curveEntity)
}

Without the curveEntity.transform.rotation = simd_quatf(angle: 0, axis: SIMD3<Float>(1, 1, 1)) line, the rotation of the curve is relative to the normal of the surface that gets raycasted upon, instead of constant.