Who maintains what at WMF?

directory
maintainers
extensions
wmf

#1

If you look at an extension, you can see the author, but who is actually maintaining a given extension? If you’re working on part of MediaWiki core, or extensions that are used in WMF projects, who is the go-to person for that area of technology?

https://www.mediawiki.org/wiki/Developers/Maintainers