Add to Wikipedia's code?

Question

I know that the wiki concept is let people from around the world contribute and everything. Now is there a way to add code ("contribute") to Wikipedia's codebase? Open-source?

For eg. I'd like to offer a poll to every Wikipedian (registered user) on their user-page asking whether they're deletionists (rather have less) or additionists (rather have more)

I'm sure many would have great ideas that they could contribute .. like FireFox addons.

Any way to add-on or add to the Wikipedia software? Even if you're constantly under moderation and every change is verified by Wikipedia employees, heck, you get to update the Wikipedia!

Answer 1

I don't think you can update the code that is actually going on at http://www.wikipedia.org but you could always take an open-source wiki software already out there and customize it to add in the functionality you would like.

Answer 2

I believe you're referring to creating a plugin for MediaWiki.

Answer 3

You'd contribute to MediaWiki. However, I strongly suspect you won't get features like polls accepted into the codebase (or at least not adopted by Wikipedia). I suspect that a feature like that would already have been implemented if enough folks on Wikipedia wanted it.

Answer 4

See WikiMedia, there is a developers link.

Licensed under GPL.