As far as I know it doesn't have a single feature that is really unique. It's more like a combination of things I like from other languages, like syntax and expressions from Rust, defer expressions from Go, UFCS from D.

The overarching theme is to see how far you can go making a language that feels high level without having a garbage collector or RAII. I used to use Deplhi/Pascal a lot when I was younger and it was this kind of language.