I run a mediawiki instance at home (a few containers managed with docker compose) and it's been great for the last 3+ years. There are a number of feature for

I run a mediawiki instance at home (a few containers managed with docker compose) and it's been great for the last 3+ years. There are a number of feature for organizing content (the main ones being Categories and Namespaces) and it has APIs (so i can write simple python scripts to perform actions -- like updating some index pages with a custom format). The VisualEditor is very nice and it's fairly easy to embed images, videos or even pdf documents. It's not exposed publicly but I can access it (both for viewing and editing) from anywhere using my own vpn connection. I update the main software once in like 6-8 months so it's fairly low maintenance (this boils down to essentially changing the version tag in docker compose file, restarting and checking everything's working alright -- with the occasional fixes). Since it's running at home (on a small computer that i would keep on anyway and that it's also doing other stuff) it's essentially free and i don't have to worry about space or any other metric.