I am interested in setting up a family addressbook server and have a few questions about the syncevolution http server as documented by the HTTP server HOWTO wiki page.

For each user (device), do I repeat steps 4 through 7 (from the How-To) - with appropriate changes to parameters/variables?

I assume I can manage the entries by adding, deleting, and changing files in the addressbook directory. 
If so,
-  What file format(s) are allowed?
-  Will the directory and/or files be locked during a synch to prevent failures?
-  Any special instructions (gotchas) regarding maintaining the files in the addressbook?

Is this information already available & I just missed it?

thanks,
steve roush