RSS predates Twitter and outlives it. Feed readers (Feedly, Inoreader, NetNewsWire) poll a site's /feed.xml or /rss.xml endpoint, deduplicate against what they've seen, and surface new items.
For SEO + distribution: feed aggregators republish RSS items with backlinks to the original. dev.to has an inbound RSS auto-publish flow. Hacker News bots scrape RSS feeds for /Show HN candidates.
lrok publishes /changelog.xml and /blog/rss.xml. Both are auto-generated from data files; both are linked from <head> via <link rel=alternate type=application/rss+xml> for feed-reader auto-discovery.