Original source [Zigzags for greener construction](<a href="https://ethz.ch/en/news-and-events/eth-news/news/2025/01/zigzags-for-greener-construction.html" rel="nofollow">https://ethz.ch/en/news-and-events/eth-news/news/2025/01/zig...</a>) (no discussion) <a href="https://news.ycombinator.com/item?id=42714116">https://news.ycombinator.com/item?id=42714116</a>