As with any other Fallout 76 mod. First, download the file from the "Files" tab, extract the .ba2 file into the "Data" folder where your Fallout 76 is installed, and inside of your documents folder, go to "My Games", "Fallout 76" and, if you don't have one, create a Fallout76Custom.ini file. Inside of that document paste this:
8 comments
[Archive]
sResourceIndexFileList=GlowingRats.ba2
That should be it.
https://youtu.be/4ZYT7uYb94A