tl;dr:“Nushell is a non-POSIX shell implemented in Rust and based around the concept of structured data. Non-POSIX means that everyday commands like ls, mkdir, find and rm have been redefined to work better with structured data, and that things like environment variables are configured differently to common shells like bash and zsh. Having to re-learn everyday things is big cost, but Nushell comes with a lot of big benefits that outweigh these costs.” Lars gives us an introduction.