Been following PJ Evan's great series of articles on setting up a Magic Mirror with interest.
Having done it, there are a couple of small errata which may help others who are also going to use them to set one up:
Issue 90 - "Installing MagicMirror2" (step 4).
At the start of the year the maintainers decided to move the installer script out of the repo, so the link quoted in the article no longer exists or works. The new updated one is https://github.com/sdetweil/MagicMirror_scripts .
Issue 91 - "Vampire mode (no reflection)" (step 7).
The quoted address: "", is wrong and won't enable any IP address to access the mirror. The correct code is address: "0.0.0.0", to enable access across your network.
Aside from those, a great series of articles, well done PJ!