Work on MediaWiki:
- Extensionless files patch - A patch which lifts the requirement that the page title have a file extension appropriate for the MIME type. This patch addresses Bugzilla:4421.
- A few minor patches here and there (e.g Bugzilla:11867, Bugzilla:3603)
- Various small improvements for the Second Life wiki and intranet wiki at Linden Lab (sorry, no source available)
- Electowidget - MediaWiki extension for displaying election results from complicated election methods.
- Some work on Wikidata for Erik, which I think he used on some non-WMF wikis.
- AuthPress - extension which allowed MediaWiki installs to authenticate against a Wordpress database. I doubt this works anymore.
- EditOversight extension - defunct work done on behalf of ManyOne (also defunct)