Hi there!
I have a Node.js 8 / npm 5 package in the works: Spec file, patches [1] and Copr repo [2].
I took the 6.x package and worked from there. I just rebased some existing patches and removed some that are not needed anymore because they were merged upstream. However I have a build issue on EPEL 7 now that needs attention.
Anybody out there already done this? Anybody out there doing the same? Interested in combining efforts? Am I wrong here? FWIW, I am not a packager... although I have one package in the queue that needs sponsoring.
[1] https://github.com/bkircher/node-fedora [2] https://copr.fedorainfracloud.org/coprs/bkircher/node8/