This WordPress plugin provides a simple feed, you can follow using twtxt

nothing more... nothing less...

twtxt is a decentralised, minimalist microblogging service for hackers.

More infos about twtxt here https://github.com/buckket/twtxt

Example

Run this to follow me in the app:

twtxt follow pfefferle https://notiz.blog/author/matthias-pfefferle/feed/twtxt

...or my blog:

twtxt follow notizblog https://notiz.blog/feed/twtxt