Clickbait. "your own knowledge base" <> "the offline internet"

It reminded of a friend saying: "I'll go to the mountains for the extended weekend, but I'll be prepared, this night I'm starting a wget http://./"

"premium ui" you sure about that? looks incredibly generic to me...

It uses elements from the html region in France.

Is there something like this that operates just on Wikipedia data?

Yes, the search keywords you are looking for are “LLM Zim”.