Full parametric,stacking open box with open sides

Sometimes you just need an organizer to neatly stack items together but you don't need a box in a box in a cupboard etc and using something like gridfinity is a step too far. For those cases this parametric open box is what you need! It is fully configurable through the customizer, f.e. all dimensions, whether you need open sides or not, how big the open sides should be, the radius of the rounded corners of the open sides etc. The open sides are helpful when storing stacked items in the box. Optionally you can also add feet to the box (both fixed as inserts, inserts are recommended as they won't require supports) so that the box only has 4 resting points which f.e. could be more stable on uneven surfaces. Feet are also fully customizable, so whether you want small feet, big feet, low feet or high feet just configure it yourself! The boxes can also be stacked (with one caveat, see below), and adding feet to the boxes could also help with stacking stability.⚠ Note that given a 2x