Problem solved, for the record I have added all file on my GitHub: https://github.com/LM1LC3N7/Dockerfiles/blob/master/nodebb/README.md
[solved] NPM install killed during recent install
Here's the gist of the error that I got:
Seems that something in the process killed it, on a brand new install.
OSError: [Errno 12] Cannot allocate memorythis might have something to do with it?
@julian That's got to be it, thanks mate!