[kklemon]

That looks indeed pretty interesting. But I still feel that it's not very convenient for usage in a desktop environment with local files. This is of course not to blame on the project itself, since I assume that it simply targets different use-cases and audiences.

I also researched in the meantime whether such a functionality could be implemented at all for the Gnome Shell and, more specifically, for its file browser. But the search and extension APIs would not even allow it or require many hacks.