This task requires organization skills - like cleaning up a messy place. :)
We have many places related to MediaWiki and Wikimedia tech presentations.
- Check the current situation and content of each pages, see links below.
- Potentially check "What links here" for each page to understand which pages are "how popular" - might influence which page(s) to keep but also consider the specific scope that each of the sites (mediawiki.org as developer audience, meta.wikimedia.org as Wikimedia-wide audience, commons.wikimedia.org as a free media storage place) have.
- Come up with a plan how to reduce the number of places (e.g. merging/moving some content; set up a page redirect when killing a page). This might need several iterations ad feedback from GCI mentors.
As a seperate step, after having received feedback on/a review of that plan and agreement, proceed with it (this might include creating redirects of pages).
Relevant links to presentations: See meta:Presentations, mw:Presentations, commons:Category:Wikimedia presentations, commons:Category:MediaWiki.