I was trying to move a Zend app from one server to another once. there were actually 3 apps running on 2 different servers, an idle rabbit server, and the code in prod was vastly different than what was on the repo. the docs the previous dev wrote were literally the about pages for the tech used.

I remember he had a Windows server running something... all the docs said was "for long processes".... there wasn't a single process ever running on it.