https://techcrunch.com/video-article/shapemeasures-lasers-and-automation-let-carpenters-measure-once-and-cut-never/

It would be nice in construction jobs if everything was perfectly squared off in standard sizes, but it rarely is. Shapemeasure uses a custom-built lidar unit to very precisely measure the dimensions of a project, like stairs or cabinets, including nearly invisible flaws. This information is sent to a robotic lumber processor that creates all the wood you need, perfectly pre-cut to the exact size and angles needed. They claim it can speed up some projects by 3-4x.