What does HackerNews think of zulip-archive?
A tool for archiving and displaying Zulip chat channels.
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/ You'd have to use 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 They are working on it here: 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
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.
There’s also a separate zulip-archive project that exports Zulip streams to static HTML: https://github.com/zulip/zulip-archive
We expect to have a native feature allowing a configurable set of streams to be browsed using a real Zulip web app UI without creating an account, available in beta in the next few weeks; we're actively integrating the implementation via https://github.com/zulip/zulip/pull/18532.
We plan to look at optional search indexing in that native implementation once the logged-out access feature is complete.
I'm not sure about this detail of Slack's ToS. At a technical level, you can certainly export your data from a Slack (which is we implement https://zulip.com/help/import-from-slack); I imagine it's easy to write a tool to format and publish it.
FWIW Zulip maintains https://github.com/zulip/zulip-archive, which is a configurable API-based tool for creating a static HTML archive from a Zulip organization, with tooling to update it every few minutes. A lot of larger open projects use it. (We're also working on a native logged-out access feature with less janky formatting, which has a working PR that we need to integrate).
I suppose you could export your data from Slack, import it into Zulip, and then publish that using zulip-archive if you didn't want to write any code, but I'm sure the formatting would be better preserved if one avoided the "convert Slack markup to Zulip markup" step.
There's also an archive tool at https://github.com/zulip/zulip-archive.