Couldn't agree with what you have said more. I wish more people looked at things this way. I personally have had a lot of fun contributing to Nimrod because like you said it is very easy to contribute something meaningful. I wrote a lot of the standard library modules, including http client/server modules and more. It wasn't only fun but it was also a very good learning experience and because the community is still quite small getting real-time help from the creator of Nimrod is very easy.

So instead of writing the 100th ORM for Python write the first one for Nimrod :)