The installation instructions are broken.

[netrunner_sw]

https://docs.magicmirror.builders/getting-started/installation.html#manual-installation

Paragraph 1.
“Download and install the latest Node.js version, see the official documentation:”

No that’s wrong. It is very difficult / not possible to follow those instructions if you have a Raspberry Pi. Beginners will have to debug for hours to get this working.

Just two commands are enough:
sudo apt-get install npm
sudo apt-get install nodejs -y

[sdetweil]

@netrunner_sw yes, the nodejs guys have made it very hard…

use my install script, it does it correctly
see https://github.com/sdetweil/MagicMirror_scripts

from a newly flashed sd card…

[BKeyport]

@netrunner_sw Well, not wrong, just not concise due to outside means.

[mumblebaj]

@sdetweil Maybe the getting started document/page must be updated to reflect usage of your script. The old initial method is outdated and you script is so much easier and would save lots of user pain and grief.

[sdetweil]

@mumblebaj my script is listed as first alternative