root partition wont allow to go lower, So I think its the smallest we can get.
But will try to cleanup the OS again, see if I can reduse more.
Why do not you use a lighter linux system like Lubuntu or even, a linux system even more minimalist as there are at least a dozen ...
I know, I say in a vacuum and it's a lot of work but I have often thought about it. I did not have the courage or the motivation to try.
These days, I'm getting ready to make my RIG fatter because 2 GPU is good for testing, but it does not produce enough and not fast enough for my taste.
Thats exactly what Leenoox says to use Lubuntu or some thing lighter.
But I think changing OS needs fullzero consent and its not our place to fully change his OS.
Ubuntu 18.04 is coming in less than 3 months
lets see how it works with gnome-desktop and new kernels, and hopefully fullzero will show up till then too.
nvOC boots in less than a minute and I dont see any reason to migrate from it and go for lubuntu or any thing else when ubuntu has the most users and many are familiar with it.