Sum types with associated values are worth it

This is what is used where I work. I have never and will never understand why.

Swift already works on Android and Windows. The support for Windows is improving and on the way to being official instead of questionable. The Browser Company is already building their app on Windows with Swift.

Swift’s governance has had some bumps in the past but is improving. Apple does have a vested interest in Swift adoption outside of their platforms. The more popular it is in general, the better the community and ecosystem get.