Looks great.

But I can't help wondering:

If it is similar to Rust why not make it the the same as Rust where it feature-matches?

Why import "foo.bar" instead of use foo::bar?

Why Bar.Baz => instead of Bar::Baz =>? What are you achieving here?

Why make it subtlety different so someone who knows Rust has to learn yet another language?

And someone who doesn't know Rust learns a language that is different enough that the knowledge doesn't transfer to writing Rust 1:1/naturally?

Also: int but float64?

Edit: typos