Via @reillypascal@hachyderm.io on Mastodon:

In my wiki/digital garden I have a collection of tutorials on webmentions including the basics — you can get up and running with only two lines of HTML! — using microformats to enrich your mentions; adding a webmention form; and parsing, displaying, and updating them with Eleventy, Netlify, and Bridgy.

Hope it can be helpful to someone!

https://reillyspitzfaden.com/digital-garden/tutorials/webmention-tutorial/