I'm also not German and don't know where in Germany the OP is from. I've heard about the tech startup scene in Berlin but I can't recall hearing about a started

I'm also not German and don't know where in Germany the OP is from. I've heard about the tech startup scene in Berlin but I can't recall hearing about a started community in other cities in Germeny. That's why I chose Berlin as a proxy for Germany and clearly stated it as an assumption. San Francisco isn't the same as all of Silicon Valley either. The OP knows what city he's in and can find the appropriate cost of living difference on his own.