As of yesterday this little blog does support webmentions.

Basically you do have a small form just at the end of every article/note which you can use to send a webmention. Of course it is also possible to send it without the form. Just send it to /api/webmention.

Add your reply here with Webmention (you must link to this page in its canonical form)
Webmentions are approved manually. Will take some time until they show up.