Git Time Travellers

Changing the history of a Git repository is something you typically don't (want to) do. But what if you get the task to make your closed source applications open source? That's exactly how we spent our summer. In this talk we will share our adventure in changing history. We'll be going over our initial approach, the rough way, and the more elegant way. We'll gladly share the pitfalls both foreseen and unforeseen we came across and how we resolved them.