A lot of broken links, and some are not actual product clones; e.g. the Twitch clone seems to be for a job interview challenge to clone the front-end site functionality.

What I'm looking for is an open source confluence alternative. Never found a good one.

MediaWiki? Spend some time on a new theme cloned from the default one and you can make it look and behave pretty similar, unless I'm missing some killer feature. Might have to add a extension or two as well.

While closely related, i don't think it's really in the same market.

It's like comparing a pickup to a van. They're both largish cars with some storage potential, but the venn-diagram of people considering either as their personal vehicle is gonna be pretty small.

Are they not? With words not related to cars, could you describe for what cases Confluence would work better than MediaWiki?

Collaborative live editing of documents including advanced macros, deep integration into Jira, bitbucket etc.

MediaWiki is a great tool, but it's not targeting Enterprise, basically.

Collaborative live editing is available as a experimental feature: https://www.mediawiki.org/wiki/VisualEditor/Real-time_collab...

Obviously not ready for prime-time, but might get there in due time.

Advanced macros? As far as I've used both, I never had a macro in Confluence that couldn't also be implemented in MediaWiki. You can basically have access to the whole of PHP in MediaWiki so not sure what the limitation is here.

> deep integration into Jira, bitbucket etc

I mean, obviously. Which "open source corporate wiki" could even have as deep integration with Atlassian as a Atlassian product? Atlassian would never allow you embed non-Atlassian stuff into BitBucket. Why would they allow for example GitLab to embed their issues in their own product with as deep integration?

Awesome