I use Baïkal for card and cal and Apache for webDAV, they provide all the features I need and were easy enough to set up, never tried alternatives.

I wonder how many countries’ laws every Linux distribution violates by existing (e.g. North Korea, Turkmenistan) but these bozos at Arch Linux 32 don’t proactively block.

That is the way. I just don’t understand open source projects that have no ties to regions where these dumb regulations exist blocking users from said region. Why is it your problem? If California (for example) wants to block your website, let it be their problem.