Working my way through “Build a Large Language Model from Scratch" and the publisher (Manning.com) has a feature that is basically nostr:npub1w0rthyjyp2f5gful0gm2500pwyxfrx93a85289xdz0sd6hyef33sh2cu4x , called ‘livebook’ although the interface for showing highlights isn’t quite as nice as highlighter.com.

First time I’m seeing something like highlighter not on Nostr.

Highlighter UX for textbooks or other dense reading material where people can have side discussions will be amazing.