Comment by nodar86

Hey! I have an open-source project for browsing an exported slack archive, it may be useful to you so you can see and search the history: https://github.com/pkarolyi/slack-archive-browser

I haven’t maintained it in a while since it works for us, but PRs are welcome :)

A good first one would be adding non-slack authentication as currently it only supports Slack openid for logging in, but it uses next-auth and should be simple to extend