I'm about to change the wikitech sidebar to remove all OSM page links. This is meant as a trial separation -- let's see if we can get along without things before actually ripping out the code.
If anyone has sudden, acute regrets about this change, it can be reverted via the wiki history here: https://wikitech.wikimedia.org/wiki/MediaWiki:Sidebar/Group:projectadmin
And, the actual special pages (e.g. https://wikitech.wikimedia.org/wiki/Special:NovaProject) will remain for a bit.
-Andrew