F# is not a windows language. It's been open source from the start and there are many compiler implementations that does not depend on Windows at all, like Fabl

F# is not a windows language. It's been open source from the start and there are many compiler implementations that does not depend on Windows at all, like Fable. That said I think it has many parallels with Rust and I enjoyed reading this comparison between the two https://github.com/Dhghomon/rust-fsharp https://github.com/Dhghomon/rust-fsharp It shows how strikingly similar the two languages are, at least on the surface.