Kiwix is a free open source app for offline viewing and searching of Wikipedia, Gutenberg, StackExchange etc. It lets you use and distribute physical copies of websites entirely offline.
You can follow at:
The app is available for Linux, Mac, Windows, Android and iPhone/iPad from https://www.kiwix.org
This is a brand new server run by the main developers of the project as a spin-off of mastodon.social It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!