I’ve been thinking about adding this to my “Fuck it, I’ll do it myself” / SHTF pile. I have a spare 10-15GB for a good selection of basic articles (across sciences, history, pop culture trivia etc).
https://get.kiwix.org/en/solutions/hotspots/content-bundles/
https://get.kiwix.org/en/solutions/hotspots/imager-service/
There’s something inherently cool about having wikipedia in a box (yes, you’d likely need to refresh it once a year) but I’ve never heard of anyone actually self hosting a Kiwix instance.
I switched to an N150 some time ago, but I previously had it running perfectly on a Pi 4 with only 2GB of RAM. There’s actually a lot more content available than just Wikipedia! You can even archive your own websites using https://zimit.kiwix.org/
It’s fun and Kiwix is impressively lightweight, it uses less than 50 MB of RAM, even with an article loaded.
https://imgur.com/a/DmmqJdh