Tool Open source
Backchannel is an open-source userscript and renamed continuation of HNewhere that brings discussions from Hacker News, Bluesky, Reddit, Lemmy, Lobsters, and other selectable sources into a sidebar beside the page or PDF being read. It checks visited pages for matching threads, merges enabled sources into one conversation with source labels, and matches quoted comments to article passages as clickable annotations; enhanced PDF highlighting is supported except in Firefox. Users can vote, reply, and submit through popups on supported source sites, add locally stored notes to pages and PDFs, and use a customizable front page combining content from selected sources. The single-file script runs without a build step, backend, analytics, or telemetry, and is distributed through userscript managers such as Tampermonkey, Violentmonkey, and Userscripts.
4 uses taken from transcripts — each links to the moment in the video.
An open-source user script that adds Hacker News and Reddit discussions to articles. It detects matching threads, displays them in a source-tagged sidebar, and can match discussion quotes back to article passages.
A user script that brings Hacker News discussions onto the article being discussed. It displays matching submissions in a resizable sidebar and supports quote-linked annotations between comments and highlighted article text.
A userscript that adds Hacker News and Reddit discussions about the page you are reading in a sidebar, matching quoted comments to their locations in the article.
A lightweight open-source user script that displays matching Hacker News discussions alongside articles. It loads comments in a resizable sidebar and runs through user-script managers such as Tampermonkey.
4 in the library.