current status Edit
At the moment, I'm not too fussed about people contributing code. I just want to get a release out. At the moment, the project isn't well known at all. Once a release is out, I will let people in the community know about it's existance and then I will focus on documentation and bug fixing (some training videos). Once people know about it and start using it, then there will be people with enough experience with it who can possibly make contributions. If you're an early adopter of XAO and you have a burning desire to contribute some code, you send it to me and I will give it some consideration.
In the mean time, you can avail yourself of the XAO code conventions document.