7.27.25 | Rust on all GPUs, Rooting Copilot, Purple Earth hypothesis

This is a recap of the top 10 posts on Hacker News on Jul 27, 2025.Rust running on every GPUhttps://rust-gpu.github.io/blog/2025/07/25/rust-on-every-gpu/https://news.ycombinator.com/item?id=44692876How we rooted Copilothttps://research.eye.security/how-we-rooted-copilot/https://news.ycombinator.com/item?id=44695098Purple Earth hypothesishttps://en.wikipedia.org/wiki/Purple_Earth_hypothesishttps://news.ycombinator.com/item?id=44665644The natural diamond industry is getting rocked. Thank the lab-grown varietyhttps://www.cbc.ca/news/business/lab-grown-diamonds-1.7592336https://news.ycombinator.com/item?id=44693570What went wrong for Yahoohttps://dfarq.homeip.net/what-went-wrong-for-yahoo/https://news.ycombinator.com/item?id=44696033When We Get Komootedhttps://bikepacking.com/plog/when-we-get-komooted/https://news.ycombinator.com/item?id=44699421Resizable structs in Zighttps://tristanpemble.com/resizable-structs-in-zig/https://news.ycombinator.com/item?id=44697131Shallow water is dangerous toohttps://www.jefftk.com/p/shallow-water-is-dangerous-toohttps://news.ycombinator.com/item?id=44664176Getting decent error reports in Bash when you're using 'set -e'https://utcc.utoronto.ca/~cks/space/blog/programming/BashGoodSetEReportshttps://news.ycombinator.com/item?id=44666984Chemical process produces critical battery metals with no wastehttps://spectrum.ieee.org/nmc-battery-aspiring-materialshttps://news.ycombinator.com/item?id=44698928