There's now a feed icon on every post.
When you click it a new tab opens with the post, ready to paste into your feed reader.
A blog post with a screen shot and explainer.
It seems this has not landed on github yet ? origin/main has theme 0.5.322, and the live/deployed S3 has 0.5.328 ?
The repo is current now — the theme is at 0.5.329, matching what's live. Also just for you: the upgrade section of install.md has a new step, the items.feedUrl migration — without it, feeds come up empty after switching to database mode. Worth a look before you update your fork's deploy.