Improve fetch performance by using go module cache

Dear all,

I currently prepare another upgrade for the gitlab-ce ports which uses 
some go based packages.

My problem here is that my internet connection is really slow and doing 
a build with poudriere of a port like devel/gitaly takes about one hour 
to fetch the go packages.

Can I do anything to improve this or tell poudriere to use a local 
module cache first before it tries to download the packages from the 
internet again and again?

Please reply to me on CC, I'm not subscribed to the go mailing list.

Thanks a lot!

Gruß
Matthias

-- 

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook