Swift wasn't ready when we started a couple years ago. We actually used some swift for internal things and it has been a bit of a pain, eg with the macOS SDK update for Xcode 8. Combining ObjC and C++ you get a lot of the benefits of swift like functional programming / static type checking etc, paying a similar price in compile time.
It would be hard to achieve the elegance of ComponentKit syntax (https://github.com/facebook/componentkit) in swift though. It lets us express the UI in a functional way :D
Is there any sort of export to a production framework(I.E. for integrating into existing iOS/Android apps) or is this purely for prototyping?
I feel silly jumping to a nitpick at this point, but I see one obstacle for my team: There doesn't seem to be a way to enter custom screen sizes, apart from eyeballing it with the resizable window setting (we're designing for a custom-built Android device). That's probably not enough to stop us from using it, but it would be great to have the option.
Or is just used for only previz? That would mean someone can prototype an interaction which is impossible to code
Finally, what is the goal? Is it just to be a prototyping tool or Will it evolve into a App maker itself? Or at least able to export code.
Thanks for giving it away free!