To me Swift is one of the most interesting languages right now. It's killer for iOS development of course, but Swift for Tensorflow[0] is exciting and could become a refreshing alternative to python for machine learning. Here Swift System + Swift for Linux could make it a compelling alternative to Go or Rust in the future. Looking at Swift System, one interesting thing to note is that they are wrapping the library functions rather than calling into the kernel directly. The source for that is here: https://github.com/apple/swift-system/blob/main/Sources/Syst...
[0] Yes, I'm aware of the staffing issues. No need to beat that dead horse again.
[0] Yes, I'm aware of the staffing issues. No need to beat that dead horse again.