Apparently last night @themarkymark figured out some kind of solution to get his STEM token back up and running and was looking to get LEO up and running as well. Perhaps he'll be sharing with the class in the near future.
I was in contact with the dev fixing the problem and there was a temporary fix that was done to allow functionality while the domain was offline. I pointed Khal in the right direction so he can fix it himself as well.
As far as I know, STEMGeeks and LeoFinance are the only tribes that are self hosted, all others are managed by the Hive Engine team.