Gridfinity Bin and Holder, these you can edit using FreeCAD. Fully customizable to your preferred size. It will work from 24mm width.

Use VarSet to change grid width and the number of blocks.
Extra blocks can be added in X and Y direction. If you want more than one block, just enter the new number instead of 1 (default value).

If you need to upload variations, please write in the comments what width and grid spacing you would like the files to be. Also include the height of the bin.

Update 2025.01.27.
I updated the bin model (V1.1) with the wall thickness parameter and improved the stability of the model.