Tinc on MacOs X

[Tincer]

My intention is to set up tinc so that I can connect from home to an 
office network. All CPUs are running MacOs X, 10.2.8 or 10.3.5.

I have read the tinc manual, tincd.8 and tinc.conf.5. However, I am 
still unclear about a few issues.


First and foremost, how to I setup the VPN interfaces on the hosts, 
on MacOs X? Which file do I have to alter and what is the exact 
syntax on Os X to setup the VPN interface?

Thanks.