This is really exciting. Every time I see something about Swift my thought process is "that looks like a lovely language but I don't build iOS/macOS apps, oh well". Maybe now I'll give it a real go.
Fun fact: Graydon Hoare, the original inventor of Rust, now works at Apple on Swift.
I'd love to have a modern statically typed language with type inferencing etc. that can be used for scripting, working in a REPL, as well as compiling to native code.
I've never tried Swift, but it seems it could have all the required features. I guess it's just lacking a lot of libraries that work on Linux.
But those have been out there in a more or less mature form for decades, with no major uptake in sight. I guess they're just too esoteric for them to reach critical mass. So here I am, stuck with bash/python/C, and dabbling a bit with Rust..
I know it's had some mixed support for other platforms for a while, but it's hard to really invest time and effort into a language before you know it has official support.
Fun fact: Graydon Hoare, the original inventor of Rust, now works at Apple on Swift.