The open source software project you've been contributing to 'encapsulates' your thoughts, ideas, energy, drive to help. It is quite obvious if you start thinking about it.
The API you have contributed to does not have to be perfect, what makes a difference is that you will 'connect' with the developers and users all around the world who have downloaded the released library. The fewer bugs the project has the better you are represented :-).
It is quite possible then that your software project is one of the best things about you :-).