↳ In-reply-to » Damn, I broke my Atom feed (and a reader let me know, that’s cool!).

Okay, I’m using the “official” validator now:

https://github.com/w3c/feedvalidator

That repo is supposed to be a website/webservice, though. The feedvalidator directory contains the actual validator. I’m using this wrapper on top: https://movq.de/v/94b5b8978c/