I’m excited to announce Full Calendar 0.6! Thanks to @dojoteef on GitHub, Full Calendar now supports one-way sync with private Apple Calendars, along with any calendar that uses the CalDAV protocol over HTTP basic authentication. While remote calendars are still read-only, CalDAV is a two-way protocol supported by Google, Apple, and other cloud calendar hosts, so this is a really big step towards the much-requested two-way calendar sync!
The most recent update also includes the ability to set the first day of the week to another day besides Sunday, thanks to another PR by @JeremieSpiesser on GitHub 