[liberationtech] Calendaring Question

[Ringo]

Hey Liberation Tech,

I have been working with some activist folks to get their data off the
cloud and into their own private hands. Some of these groups are using
Google calendar in an enterprise-like fashion where they import other
people's calendars to see when they are busy/free. Most of these groups
don't really have the resources to maintain their own calendar server
(like webcalendar, which works great). My question for libtech is:

1. Are there any hosting providers that offer or can be re-purposed for
host-proof/zero-knowledge/whatever calendar (ical/caldav) hosting? How
have you seen this problem solved?
2. Is there a way on android/iOS devices or through Thunderbird to take
one iCal's events and push them to another iCal as some generic event
like "busy"? That way, they can have their private calendar on their
phones and then push their busy/free schedules to something with more
enterprise support like Google Calendar.

Thanks for any help you can offer,

-- 
-- Ringo
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