[abdullahkhalids]

What would be even better, if it could also search my local repository of ebooks and pdfs. Most of the stuff I do, needs serious answers from books or papers I have already selected. Random webpages on the web don't cut it.

Citing the book section/page/paragraph would be magic.

[sc077y]

This is 100 percent doable. Building something like this at scale might be a pain but locally it's fairly easy.

[applied_heat]

I used to use qiqqa for local full text search of pdf library, I think the world has moved on to mendeley, and paperless(-ng) I believe performs the same function