I made a tool that adds highlights to whatever you’re reading like a Norton Critical Edition using AI. Works well when reading a classic text in iBooks, Kindle or Project Gutenberg on macOS.

Built with ScreenCaptureKit + OCR, it maps the text, draws highlights which you can hover over.

There are demos for texts like Moby Dick, Wuthering Heights, and Montaigne's Of Experience that you can check out in your browser. Here's the White Whale chapter in Moby Dick: https://summa.josephruocco.net/demos/md_ch42/chapter.html

Appreciate any feedback.