Nice!
What I want is a /random endpoint that randomly shuffles through posts from the following "unofficial" endpoints:
https://news.ycombinator.com/shownew
https://news.ycombinator.com/pool
https://news.ycombinator.com/best
https://news.ycombinator.com/asknew
https://news.ycombinator.com/bestcomments
https://news.ycombinator.com/active
https://news.ycombinator.com/noobcomments
And https://news.ycombinator.com/invited ("Overlooked links, invited to repost") maybe. The lists are on https://news.ycombinator.com/lists (link in the footer of every HN page)