This is a perfect fit for the SciPy conference. There are also several open journals that focus specifically on publishing openly licensed software used in aca

This is a perfect fit for the SciPy conference. There are also several open journals that focus specifically on publishing openly licensed software used in academic work. Citing software really varies by community. It is very consistently done in some communities, and is gaining broader acceptance in others, some with surprising rapidity (ecology comes to mind). It's an exciting time to be a scientist!