Nim (https://nim-lang.org), mentioned elsethread Re: numeric ranges like Ada, only needs a library for this: https://github.com/SciNim/Unchained

FWIW, physical dimensions like meters were the original apples-to-oranges type system that pre-dates all modern notions of things beyond arithmetic. I'm a little surprised it wasn't added to early FORTRAN. In a different timeline, maybe. :)

I think what is in "the" "stdlib" or not is a tricky question. For most general/general purpose languages, it can be pretty hard to know even the probability distribution of use cases. So, it's important to keep multiple/broad perspectives in mind as your "I may be biased" disclaimer. I don't like the modern (well, it kind of started with CTAN where the micros seemed meant more for copy-paste and then CPAN where it was not meant for that) trend toward dozens to hundreds of micro-dependencies, either, though. I think Python, Node/JS, and Rust are all known for this.