Haha, I liked this conversation! @jstalin I'll get my raspberry pi delivered in a few days, I'll let you know if I can figure out the varnish issue. Meanwhile, you can also submit a ticket on Trac https://www.varnish-cache.org/trac

The quickest way to get an answer regarding varnish issues is to ask on the irc channel.

irc://irc.linpro.no/#varnish

This seems like a permanent issue and should be reported as a bug rather than an IM.