

It sounds like they’re not quite using fresh water, but waste water. I presume it’s been treated, but even if it’s not 100% back to potable, if this also helps solve the problem of what to do with the brine after desalination, I think it’s a win all around.
It’s open source, you’re welcome to do it. STK is GPL while Godot is MIT, so I don’t know if that would be easy.
But I doubt the STK project would be receptive to that. You’d be doing it on your own, and STK has a pretty small audience as it is.
Perhaps you should see if the STK project wants developers to improve the graphics quality (while still remaining performant on old devices).