Launching Sunday — what would make a highlighter extension actually useful for you?

Hey! penciled goes live here on Sunday (Nov 8).

It's a browser extension (Chrome, Firefox, Edge) to highlight and take notes on any web page. Everything stays local, no account, and you can export your notes to Markdown. It's built on top of an open-source library I made using the CSS Custom Highlight API, so it doesn't mess with the page's DOM.

I'm curious how you read on the web today. Do you highlight stuff? Where do your notes end up? And what's missing from the tools you've tried?

Any feedback helps before launch day.