To what extent should I be paranoid?

Here's an example project that I had in mind:

- take a screenshot of my screens at some interval

- use OCR (library) to figure out some context of what I was doing

My tin-foil hat comes on "can I trust that library" that I used to do OCR. I would use something like python Tesseract.

Which idk watch your network I guess if it phones home.

This would all run locally but it's that thing of convenience/using something off the shelf that works. More hardcore "safer" would be use OpenCV on its own and do my own image interpretation which would mean longer time to achieve the original goal.

Of course easiest solution is just "write something down" everyday.

I just was wondering what did I do the last week/how was I productive.