Simple website in neocities!

I was just going through Neocities latest activity tab and I found this. The link is to a small 3D wall builder application. You can create a wall on a grid and place windows and doors on a wall in floating accuracy. It did seem to have a bug where the grid's corners were pointed only on two sides. Probably some clause has the wrong comparison operator. The user Substack does some other things as well.