Update: Disregard this post, since using Zola 0.19, both feeds are again available!
In the wave of rebuilding my academic website in Zola, I am doing the same for this blog. I will have a short dedicated post on that (I already speak too much about blog changes), this is just a short notice.
Zola unfortunately does not support (and not planning to) generating both rss and atom feed. So from now on, atom only!
I have no idea how many people (if any) are going to be affected by this (I don't track you), but if you are subscribed to https://www.archaeoramblings.com/feed/feed.json, check if the feed is working for you in the next few weeks or so. I will make sure a redirect covers anyone already subscribed, but if something goes sideways, please let me know or switch to the atom feed available at the following link:
https://www.archaeoramblings.com/feed/feed.xml
Atom is generally superior to rss/json, and it will give the reader the full article content, instead of just a section. Also, I will make sure that the rss url will not change.