I’ve created a GNOME Shell extension that allows the user to search for Wikidata items
directly from the shell. Currently you can search for simple things such as “Obama”,
“Book”, etc. I plan on adding support for complex queries such as “the population of the
earth” which would show the current population of the earth. In the future I also see this
extension handle the submission of new entries or editing existing ones. Check it out here
[1] if you’re interested. Pull requests are also welcome ;)
[1]
https://github.com/6ahodir/wikidata-search-provider