This hanger clips over this shelf (https://amzn.eu/d/7nLHnBi) and should hold itself in place.
STEP files are included if you want to adjust it for your own needs.
The very thin bridge at the bottom is a single 0.2mm layer and is only there to help bridging. It can easily be cut/broken after the model is printed to allow it to clip over the shelf.
The author marked this model as their own original creation.