Is this odoo appliance built on debian or ubuntu 16.04 ? I installed it, had t really study it to get started. I added invoicing, website, calendar, paypal, and google sheets apps, I worked a couple days on these setting up my company to test it out for future deployments, and seem to have had an issue with everything I do. I setup the internal postfix to relay through my email provider, due to i'm at home with blocked ports, setup dkim, spf, etc. but invoices by email go to spam folders while invites to users dont. Thats a google thing, I think. I got file uploads to work through the root server proxy, as it is set waay to small, 2mb or something, one pdf file exceeds, but that is fixed. and I went to add an app today and Got this tremendously complicated error about adding users blah blah. I don't know Jack about python, so I'm screwed. I think it had something to do with me deleting demo data through the database, not though I think I did anything that would break the app. But all support I've searched at odoo git is either, we can't reproduce it so shag off, or it's  some python corrupted english, that only a code writer would comprehend, but they built it on Ubuntu 16.o4 and have no interest is supporting any other build. 

rant complete. 

So I'm gonna start fresh, and should I build it on ubuntu or is it already on ubuntu. I thought all our builds were debian based.

need clarity