It's finally done. I migrated my site from WordPress to a static site generated by eleventy. I've also managed to get webmentions working of a sort. Many thanks for all the great help available on the internet.
I list here some sites I found especially helpful, but of course there are many others who gave me a nudge in the right direction.
In addition to the great documentation, the following were particularly helpful for me:
- Guide by Max Böck on using webmentions with eleventy
- Amber Wilson's overview of webmentions which lead me to Max Böck's post
- Aaron Parecki's webmention.io service for receiving webmentions
- And of course the IndieWeb