> What if people think the code is rubbish? What if people hate the project? What if nobody contributes? What if it just ends up being an embarrassing mess of a project that nobody cares about?

Are you only doing the project because you want other people to approve of it? If so, then these are great questions. And if they all come to pass, you'll need to pick yourself up, dust off, and try something else.

On the other hand, if you have your own reasons for doing your project, all these things could come to pass but you could still keep on doing it for your own reasons.

So really, all those "What if.." questions are not for us to answer, but for you.