This is why I abandoned it. And I am happier after I gave up on it.

You want me to have how many services running just so I can have a calDav/cardDav server? And sometimes you'll just stop working because of some unrelated issue of something I'm not using? Headache upon headache when you depend on it, but only for one thing.

Radicale people. Forgive me for doubting you. I have never used Radicale but I certainly do now just to point people away from nextCloud if all they want is a calDav/cardDav server.