> This is Oxygene

For those who aren't familiar[1], it's part of RemObjects' Elements[2] suite, which allows you to use and mix several different popular languages in addition to the Pascal-based Oxygene across Windows, MacOS, Linux, Android etc.

[1]: https://www.remobjects.com/elements/oxygene/

[2]: https://www.remobjects.com/elements/