They are running bare metal from what I understand. I’m not sure what their setup is past that. They are running on top of an open source platform named Mastadon. Here is a little info on that:
Like the left some open source types get their panties in a wad if you don’t see eye-to-eye with their politics. That makes me laugh a bit.
One thing for sure, gab is hauling booty right now. Very robust.
Sorry for the downtime, had to upgrade some server hardware. Back in action!
For me, Gab is flying super-fast.