Aha! I went down this road recently.

I have the main full Wikipedia plus extras on my file server accessible on the home land through kiwix.

It was really simple and painless to set up. It also includes wikihow which is the How you’re after

These things aren’t the greatest sources for anything of course but they cover pretty much everything you might want to know in a general “archiving human knowledge at home” sense.

Very happy with it all and have bookmarks on all the devices at home now.

10/10