• Systems languages (C, C++)
• Functional languages (Haskell, OCaml)
• Concatenative languages (Cat, Factor, Joy, Forth)
As a functional language without GC, it’s intended for mid-level applications where you might ordinarily reach for C++, but it remains to be seen how people might actually use it. It might be useful as a lightweight scripting language, or for writing low-level embedded code that feels high-level.
The bus factor is currently very bad—people have contributed here and there over the years, but I’m pretty much the only core developer.
Building a language is as hard as you make it, basically. You can make a pretty good toy language in a weekend, or you can go all-in and try to create something innovative, elegant, versatile, stable, usable, and performant. That takes years, and it’s a process of discovery with many false starts.