Tested the latest version of #NextCloud on Debian 13, and it works well. I also see no "AI" bullshit, so presumably that's all turned off by default.

One minor criticism is that it doesn't accept my fediverse handle. I think what's happening here is that it's trying to do some sort of confirmation via the Mastodon API, and #Epicyon doesn't implement the (non-standard) Mastodon API.