Hi fellow adept of hard-to-recommand-game-due-to-the-name-length 😂
You can build in the ground. But yeah, I definitely should have made the start a mandatory drop down, it would have been easier to grasp the mechanics! (it's shown in the gifs and wrote in the "quick start" on the page, but I know it's not really enough... fitting a proper tutorial during a jam timeframe is haaaard)