I’ve always been wondering what nativescript really was about, and how it compared to react native and other platforms (and also, why do i barely read about it

I’ve always been wondering what nativescript really was about, and how it compared to react native and other platforms (and also, why do i barely read about it on HN or elsewhere, as it seems to offer a cross-platform dev environment). The project’s webpage has way too many tech listed to be of any help, and the video mentions a framework, an IDE, a debugging environment... Do you have a good link where i could get a better understanding of the tech, and how it’s used in real world project ?