I've also mentioned this in a separate comment in the post but reposting here for visibility: To clarify Zulip let's you export their conversations and then re

I've also mentioned this in a separate comment in the post but reposting here for visibility: To clarify Zulip let's you export their conversations and then render it by generating a static HTMl similar to https://leanprover-community.github.io/archive/ https://leanprover-community.github.io/archive/ You'd have to use https://github.com/zulip/zulip-archive https://github.com/zulip/zulip-archive to achieve. You can see it in the Caveats sections in their documentation https://zulip.com/help/public-access-option#caveats https://zulip.com/help/public-access-option#caveats They are working on it here: https://github.com/zulip/zulip/issues/21881 https://github.com/zulip/zulip/issues/21881 Zulip lets you browse conversations of public conversations but that is very different than the app being natively search engine friendly and indexable. The difference between Zulip's implementation and Linen is that you don't need a separate UI when someone finds a link in Google. If you find a link through Google you get a dynamic real time experience instead of a static page. If you google site:rust-lang.zulipchat.com you won't see any results. If you do the same with site:slack-chats.kotlinlang.org you'll see at least 20,000 results