[Feature request] CalDAV support (baikal)

[update-freak]

Hi developer,

I would like to use this as docker container for CalDAV (baikal).
Is is possible to also add that functionality, because Google contact I would not like to use.
I will use it for: Android conacts <- Dav x5 -> NAS (baikal) <-> Thunderbird (via CalDAV)

[guyzyl]

That's a great idea! But it seems like it would take some effort to integrate an additional contacts system.
The code is open source and you're welcome to give it a try yourself!