I do have a mac, but before I get too invested in Swift, I would like to know I can take it else where. I haven't tried out Swift on my linux box yet, but from reading stuff in the repos and forums, it works. I guess it depends on what you think the value add for Swift is. Some, and there is a reasonable argument, is the value add of swift over other languages is when your on an apple device taking advantage of Apple APIs/tight integration in their ecosystem. Vapor exists for server side swift, which is where I really want to take a look at swift on linux.