

We have the equivalent luftslott in Norwegian as well. Often used about the things politicians are trying to sell us during their campaigns. I feel like we have a word similar to the second one as well, but I cannot remember what it would be.
We have a lot of the same words as you in general though.
DevToys. It’s an awesome cross-platform swiss army knife for developers. It’s got most of the little tools that you would look up online.
Formatters, encoding/decoding, validators etc.
I really love it!