How to integrate Camera movement effect from example code to my project

Questions
1

Hey guys I want this camera movement effect —> Shopping - CodeSandbox in my project, but I am having trouble implementing it. When I take the relevant code, which is the code inside the useFrame, yes it applies the effect to my camera HOWEVER, it resets the position that I have set for my camera. Im not sure what to modify in the useFrame() easing.damp3() in order to preserve the position and target that I have set for my camera.

Here is my code(simplified),

 <>
      <PerspectiveCamera
        ref={livingRoomCam}
        fov={50}
        filmGauge={135}
        makeDefault
        aspect={size.width / size.height}
        left={-1}
        right={1}
        top={1}
        bottom={-1}
        near={0.1}
        far={3000}
        position={[65, 137, 153]}
        rotation={[-0.2, -0, -0]}
      /> 
      <OrbitControls
        makeDefault
        ref={controls}
        position={[65, 137, 153]}
        target={[52, 101, -46]} 
      />
      <Effects />
</>

This is the code I took from the example.

function Effects() {
  const { size } = useThree();
  useFrame((state, delta) => {
    easing.damp3(
      state.camera.position,
      [
        state.pointer.x ,
        1 + state.pointer.y / 2,
        8 + Math.atan(state.pointer.x * 2),
      ],
      0.3,
      delta
    );
    state.camera.lookAt(state.camera.position.x * 0.9, 0, -4);
  });
  return (
    <EffectComposer
      stencilBuffer
      disableNormalPass
      autoClear={false}
      multisampling={4}
    >
    </EffectComposer>
  );
}
2

I think you need to move the target of the OrbitControls control.
Change controls.current.target in your code.