Radicale supports WebDAV and has built-in authentication. Also, it could be worth to add Calendso to the list. Quite new project with a bit bigger scope than S

Radicale supports WebDAV and has built-in authentication. Also, it could be worth to add Calendso to the list. Quite new project with a bit bigger scope than Sabre/Radicale. WebUI, recently added CalDAV. https://github.com/calendso/calendso https://github.com/calendso/calendso