kairos — front-page RSS in true rank order

  /frontpage.xml  Hacker News front page (rank encoded in pubDate)
  /lobsters.xml   Lobsters front page (rank encoded in pubDate)
  /reddit/<sub>   any subreddit, hot order (e.g. /reddit/programming)
  /healthz        ok

Sort your reader newest-first so #1 shows on top.
https://github.com/DeJayDev/kairos