Vibecoded this for fun to make HN browsing a bit more keyboard-friendly.

Firefox: https://addons.mozilla.org/en-US/firefox/addon/hn-keyboard-b...

Chrome: https://chromewebstore.google.com/detail/hn-keyboard-boost/p...

GitHub: https://github.com/jessesoomy/hn-keyboard-boost

Model: GPT 5.5