I've been uploading videos about NightwatchJS on YouTube, here you can see the first one in the series:
This is a link to the github repo where you can find the code that was written during the videos (go through commit history for relevant videos).
This is the repository for the youtube series "End-to-end testing with NightwatchJS" - check it out on youtube!
End-to-end testing with NightwatchJS
Follow the tutorials on youtube!
More coming soon!
Please get in touch if you have any feedback or suggestions!