I used https://kiwix.org/en/ to download wikipedia originally.

Then I saw in the desktop app that you can download a lot more “wikis” other than wikipedia. This is their library. https://library.kiwix.org/#lang=eng

https://library.kiwix.org/viewer#ifixit_en_all_2024-12/home/home

It includes computers, phones, game consoles, appliances, vehicles, tools, even medical devices and apparel.