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Our team uses Cloudron to host all our internal apps and data, and they offer a number of wiki / forum type of services. We settled on MediaWiki (e.g. Wikipedia Open Source) since it was familiar to everyone. https://www.cloudron.io/store/index.html https://www.cloudron.io/store/org.mediawiki.www.cloudronapp....

Hmm -- the OP asked for a self-hosted WIKI. Looking at the link you posted it seems to be a hosting service for WIKIs or am I missing something?

And I went on and posted a comment doing the same. Getting started fast weighs sometimes more.