Demo activitystream?

sure, but it may be less spectacular than you might think ??

https://notiz.blog/feed/as1

https://notiz.blog/feed/as2

Thanks, but the links just open pages of code, is that right?

Yes, this is like an RSS feed, but using a slightly different format called ActivityStreams: https://activitystrea.ms/

Ah I see, OK, thanks!