I do cleanup, patrol recent changes, and add to guides for games I play. I can install MediaWiki and extensions of it, and edit most of the LocalSettings.php file (though for really technical things, like actually writing scripts, I'm not the man to ask). Hopefully soon, I'm going to start learning the PHP programming language. I'm happy to help with anything, so just ask if you need anything!
Trivia
In the Eddy Grant song, 'Gimme Hope Jo'anna', Jo'anna actually refers to the city of Johannesburg, and the South African apartheid government regime, and not a woman. The song was written in protest against apartheid, and banned in South Africa upon release.