The author remixed this model.
made it work with “wtuhu” 3rd party magsafe charger (https://www.amazon.com/dp/B0C2BQ8NQC?ref=ppx_yo2ov_dt_b_product_details&th=1) as a cheaper option to using an offical apple one. Also added a remodeled version that sticks out a bit and is angled slightly upwards to fit my setup better.