The #idris2 tutorial book requires #rakulang 🦋 in the build process!

https://github.com/idris-community/idris2-tutorial?tab=readme-ov-file#raku-dependencies

This is the program: https://github.com/idris-community/idris2-tutorial/blob/main/scripts/build-book

The code:
1. Is well commented and readable.
2. Uses Raku's parallelism features.
3. Uses Raku's next-gen regexes.
4. Runs command line programs, collects the output.

Cool stuff! 😎

What's your favourite unexpected/serendipitous usage of Raku in the wild?