Unrelated, our Linen mirror is now returning 500s on Google’s crawler requests, so chats are not being indexed any more. Will keep an eye on it in case it rights itself. Note that accessing pages (e.g., this one in a browser works, and curling returns a 200 but with a bot detection page. So those 500s are probably not from a bot detector (and in any case, Linen is supposed to allow Google to index it).