Checked it out! like the idea of different shapes and stuff. The building menu is still in its very early stage ofcourse, but i recommend having a system that doesnt require a menu as it slows down building quite a bit. so maybe you could also add something like blocks to build with, half a meter by half a meter perhaps? Wich sink into the ground a bit if its not perfectly flat. or some kind of smooth placing system like in Meor playtest. https://nelstuff.itch.io/meor
Keep up the work!