No, that's exactly what I did, I'm running kiwix-serve, but I'm not going to bother updating it because I'm really worried about information degrading now that fascists are basically calling the shots on everything (and WP's jackboot co-founder has a hard on for it). If I feel enough time has gone by to warrant an update I'll just do it manually.

You run a server on a machine inside your house, it can be any computer on your local LAN/wifi, but it's obviously best if it's a machine that's always on. I use a Raspberry Pi 3B+ (these can be had for about $50) that I have plugged into my wifi router and it's running a little program called Kiwix-Server (free and open source). You download the WP file (it's a huge single file with a .zim extension) and point the server to it and boom.