It's important to remember that ChakraCore only currently builds on Windows, so this is only for Windows Node.js builds. The ChakraCore roadmap [1] shows that they plan on porting the interpreter to Ubuntu, but not to Mac OS, and they don't plan on porting the JIT. So even it does go Windows + Linux, it will still be a low-performing toy on Linux. This is vaguely interesting from a technical point of view, but doesn'…
> For cross-platform support, the key target for next six months on the roadmap is to get the interpreter & runtime working. JIT would come after that (don't read it as no JIT forever - it was just a breakdown of what we need enable and its ordering for next 6 mos).
So maybe eventually it will be fully supported. (No update on Mac OS yet, but I can give them the benefit of the doubt there...)
[1]: https://github.com/nodejs/node/pull/4765#issuecomment-172942...