I figured somebody would eventually design this, why not me? Roughly based on a standard Gridfinity 1x1x6u bin. No base-grid required.
https://cad.onshape.com/documents/c0b22df1532d2d2299e0f687/w/9241ed76b03a9c3580914d26/e/78284e24b1dc8907c9085b75?renderMode=0&uiState=655e9831573c7562343979a8
The author marked this model as their own original creation.