&gt; I also had to set up EncFS on my local machines for client-side encryption of sensitive files because there was no way I was trusting that to ownCloud server-side.<p>Did you host OwnCloud yourself? But you didn&#x27;t trust the software with your files? In what way is the SeaFile solution you are running now more trustworthy?<p>&gt; I&#x27;m still looking for a good self-hosted CalDAV&#x2F;CardDAV option that doesn&#x27;t require PHP or MySQL, but as this data is less sensitive I&#x27;m happy to trust it to FastMail for now.<p><a href="http:&#x2F;&#x2F;radicale.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;radicale.org&#x2F;</a> is exactly what you are looking for.