I want to migrate my photos (and some photos from others' collections) from Flickr and into a number of my own MediaWiki installations (this wiki; my friends-only wiki; ArchivesWiki; etc.). There's an existing MediaWiki extension called FlickrAPI that looks like a good enough starting point, but it uses an old version of the dan-coulter/phpflickr package. So I've forked that package, and am updating it to support the features I need. (Better add it to the list of things I maintain!)