Version 1.0 was a very very simple hosted headless image running on a few VM's. At that point there wasn't any debugger or notifications about your sessions. Pretty much just a submission form that provisioned machines to support the account.

This actually took place after a few months in a beta where I was doing everything manually (to see if it could even work). That was actually a good lesson: do things manually until it doesn't scale as it's possible that you'll be writing code that doesn't ever run!